Overview
overview
10Static
static
8Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Ryuk
windows7_x64
10Analysis
-
max time kernel
302s -
max time network
300s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
23-04-2021 11:24
Static task
static1
Behavioral task
behavioral1
Sample
f937b1b7b3593a38702f870077658a891974edda.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
f2e040d2c5fea1fb5e9797f7deff0a63.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral3
Sample
ea67e662ba55629b40d0eddbaaafc824e5809f31c9e35222104637a67615c51d.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral4
Sample
e430730620feec3673b9c38d87482c9294421b19.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral5
Sample
de2b5aa6de6f7ff053308084217f7a9b977489027fb103729d6a7d94298c6a6b.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral6
Sample
c4bd712a7f7185a2224806b85f3c6ac48de067e38d554608b3ee92422d902b28.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral7
Sample
b513cfbd101e728ec41c9d6f6515278434820466bfe8e4bc1849f2418d3f86da.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral8
Sample
ac94165d63c75f4adf1728aa2ecb776ac7c1c18e.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral9
Sample
aaf3abc4054f800aaa429c4f2e4b20af.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral10
Sample
aaec6ae400b38b95ae414481d8d45f0281cf26f59f8592567dfe2223f66024ad.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral11
Sample
9b40b0d3b228d9e958c8d45fb8cec64c6851d113.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral12
Sample
8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral13
Sample
7dee29fbeb5af549cb8a68dc47adf9721eb2b726.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral14
Sample
75a3cf8ced873ee7bc415e27e108496b.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral15
Sample
60c16e45c5cbe88a38911f1e3176d90444e4884261d8481d4d719acec1bc5025.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral16
Sample
4d74af75deddc969fef5fd89e65fa251.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral17
Sample
45295780f2ba837be42ccf50710bd2b5.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral18
Sample
352b1f3533ded8c575246d4466f68c49.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral19
Sample
2b10ad4890c4d6e2861533cc7260a9fdc7871ea2.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral20
Sample
1dd4a0983a6884dddc3edf27eb5fdfc87664ed63.exe
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral21
Sample
09472e7d9209b7cfc3bbc2e815a2aa843133395b.exe
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
-
Target
8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe
-
Size
274KB
-
MD5
4d74af75deddc969fef5fd89e65fa251
-
SHA1
1dd4a0983a6884dddc3edf27eb5fdfc87664ed63
-
SHA256
8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12
-
SHA512
56cbd165259045e262b064bc1d5dd242304ef30f34b9b899b9295f79aabba02cb09438ab0c429c3828b5c13e8ebcb8f5dbae85eb4c9490f65cec9807a24d062c
Score
10/10
Malware Config
Extracted
Path
C:\users\Public\RyukReadMe.html
Family
ryuk
Ransom Note
contact
balance of shadow universe
Ryuk
$password = '2neBqEej6'; $torlink = 'http://rk2zzyh63g5avvii4irkhymha3irblchdfj7prk6zwy23f6kahidkpqd.onion';
function info(){alert("INSTRUCTION:\r\n1. Download tor browser.\r\n2. Open link through tor browser: " + $torlink + "\r\n3. Fill the form, your password: "+ $password +"\r\nWe will contact you shortly.\r\nAlways send files for test decryption.");};
URLs
http://rk2zzyh63g5avvii4irkhymha3irblchdfj7prk6zwy23f6kahidkpqd.onion
Signatures
-
Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
-
Executes dropped EXE 3 IoCs
pid Process 1352 oEgxTWLtarep.exe 1252 eDegTMJVjlan.exe 676 PwbOYmGghlan.exe -
Modifies extensions of user files 3 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\InitializeExport.raw.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Users\Admin\Pictures\StepCompare.png.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Users\Admin\Pictures\ProtectNew.crw.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe -
Loads dropped DLL 6 IoCs
pid Process 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe -
Modifies file permissions 1 TTPs 2 IoCs
pid Process 2636 icacls.exe 2648 icacls.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\L: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\X: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\Q: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\R: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\N: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\K: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\I: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\E: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\W: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\U: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\V: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\P: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\O: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\M: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\H: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\Z: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\Y: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\J: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\G: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\F: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\B: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\T: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened (read-only) \??\S: 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsStyles\BrightOrange\background.gif 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\uk-UA\tipresx.dll.mui 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\ext\zipfs.jar 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\modules\com-sun-tools-visualvm-host-remote.jar.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\el\LC_MESSAGES\vlc.mo.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\VideoLAN\VLC\skins\skin.dtd.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBFTSCM\SCHEME12.CSS.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FormsTemplates\Track Issues.fdt.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\SystemV\AST4ADT 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\CATWIZ11.POC 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\bg_Earthy.gif.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\SpecialNavigationRight_SelectionSubpicture.png 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.p2.artifact.repository_1.1.300.v20131211-1531.jar 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA01682_.WMF 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.emf.ecore.change_2.10.0.v20140901-1043.jar.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.themes_1.0.1.v20140819-1717\css\e4_default_win7.css.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ui.win32.nl_ja_4.4.0.v20140623020002.jar 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\Publisher\Backgrounds\WB02055_.GIF 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\Asia\Samarkand.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\WB01747_.GIF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\ZPDIR6B.GIF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSODCW.DLL.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\BabyBlue\BUTTON.GIF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME-JAVAFX.txt 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0090149.WMF 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00915_.WMF 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\rtf_alignright.gif 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\HST.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0187921.WMF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.ssl.feature_1.0.0.v20140827-1444\META-INF\RyukReadMe.html 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\VideoLAN\VLC\locale\oc\LC_MESSAGES\RyukReadMe.html 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Maroon.css 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\zi\ZoneInfoMappings.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\lib\pop3.jar.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\button_right_disable.gif.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\Asia\Kathmandu 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\GRPHFLT\PICTIM32.FLT 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\NA01368_.WMF 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\Solutions\Response.gif 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolBMPs\GRIPMASK.BMP 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.HK.XML 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGDOTS.XML 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\PE00489_.WMF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PUBSPAPR\PDIR8B.GIF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\SCNPST32.DLL.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\lib\jfr.jar 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.frameworkadmin.nl_ja_4.4.0.v20140623020002.jar 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Templates\1033\EssentialMergeLetter.dotx 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.ecf.provider.filetransfer_3.2.200.v20140827-1444.jar.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\security\cacerts.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Linguistics\Providers\Proximity\11.00\brt55.ths.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyBoy\BabyBoyScenesBackground_PAL.wmv 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveDocumentReview\InactiveTabImage.jpg 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\FormsTemplates\RyukReadMe.html 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\PUBBA\MSPUB2B.BDR 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Mexico_City.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0152688.WMF.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\EADOCUMENTAPPROVAL_REVIEW.XSN.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\Java\jre7\lib\zi\America\Port_of_Spain 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files\VideoLAN\VLC\lua\playlist\newgrounds.luac 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0107042.WMF 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Common Files\microsoft shared\THEMES14\WATERMAR\WATERMAR.ELM.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolIcons\COMPUTER.ICO.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroSign.prc.RYK 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2604 SCHTASKS.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1220 wrote to memory of 1352 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 29 PID 1220 wrote to memory of 1352 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 29 PID 1220 wrote to memory of 1352 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 29 PID 1220 wrote to memory of 1352 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 29 PID 1220 wrote to memory of 1252 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 30 PID 1220 wrote to memory of 1252 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 30 PID 1220 wrote to memory of 1252 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 30 PID 1220 wrote to memory of 1252 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 30 PID 1220 wrote to memory of 676 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 31 PID 1220 wrote to memory of 676 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 31 PID 1220 wrote to memory of 676 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 31 PID 1220 wrote to memory of 676 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 31 PID 1220 wrote to memory of 2636 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 32 PID 1220 wrote to memory of 2636 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 32 PID 1220 wrote to memory of 2636 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 32 PID 1220 wrote to memory of 2636 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 32 PID 1220 wrote to memory of 2648 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 33 PID 1220 wrote to memory of 2648 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 33 PID 1220 wrote to memory of 2648 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 33 PID 1220 wrote to memory of 2648 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 33 PID 1220 wrote to memory of 3164 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 36 PID 1220 wrote to memory of 3164 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 36 PID 1220 wrote to memory of 3164 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 36 PID 1220 wrote to memory of 3164 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 36 PID 1220 wrote to memory of 3320 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 43 PID 1220 wrote to memory of 3320 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 43 PID 1220 wrote to memory of 3320 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 43 PID 1220 wrote to memory of 3320 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 43 PID 3164 wrote to memory of 3340 3164 net.exe 38 PID 3164 wrote to memory of 3340 3164 net.exe 38 PID 3164 wrote to memory of 3340 3164 net.exe 38 PID 3164 wrote to memory of 3340 3164 net.exe 38 PID 1220 wrote to memory of 3364 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 40 PID 1220 wrote to memory of 3364 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 40 PID 1220 wrote to memory of 3364 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 40 PID 1220 wrote to memory of 3364 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 40 PID 3320 wrote to memory of 3392 3320 net.exe 41 PID 3320 wrote to memory of 3392 3320 net.exe 41 PID 3320 wrote to memory of 3392 3320 net.exe 41 PID 3320 wrote to memory of 3392 3320 net.exe 41 PID 1220 wrote to memory of 3568 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 44 PID 1220 wrote to memory of 3568 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 44 PID 1220 wrote to memory of 3568 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 44 PID 1220 wrote to memory of 3568 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 44 PID 3364 wrote to memory of 3832 3364 net.exe 46 PID 3364 wrote to memory of 3832 3364 net.exe 46 PID 3364 wrote to memory of 3832 3364 net.exe 46 PID 3364 wrote to memory of 3832 3364 net.exe 46 PID 3568 wrote to memory of 3880 3568 net.exe 47 PID 3568 wrote to memory of 3880 3568 net.exe 47 PID 3568 wrote to memory of 3880 3568 net.exe 47 PID 3568 wrote to memory of 3880 3568 net.exe 47 PID 1220 wrote to memory of 7180 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 51 PID 1220 wrote to memory of 7180 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 51 PID 1220 wrote to memory of 7180 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 51 PID 1220 wrote to memory of 7180 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 51 PID 1220 wrote to memory of 7188 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 50 PID 1220 wrote to memory of 7188 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 50 PID 1220 wrote to memory of 7188 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 50 PID 1220 wrote to memory of 7188 1220 8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe 50 PID 7180 wrote to memory of 7248 7180 net.exe 54 PID 7180 wrote to memory of 7248 7180 net.exe 54 PID 7180 wrote to memory of 7248 7180 net.exe 54 PID 7180 wrote to memory of 7248 7180 net.exe 54
Processes
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C:\Users\Admin\AppData\Local\Temp\8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe"C:\Users\Admin\AppData\Local\Temp\8879a8d1508c3297200c608f3a93da5387521767c050f17aed78dde8a0cbfe12.exe"1⤵
- Modifies extensions of user files
- Loads dropped DLL
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1220 -
C:\Users\Admin\AppData\Local\Temp\oEgxTWLtarep.exe"C:\Users\Admin\AppData\Local\Temp\oEgxTWLtarep.exe" 9 REP2⤵
- Executes dropped EXE
PID:1352
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C:\Users\Admin\AppData\Local\Temp\eDegTMJVjlan.exe"C:\Users\Admin\AppData\Local\Temp\eDegTMJVjlan.exe" 8 LAN2⤵
- Executes dropped EXE
PID:1252
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C:\Users\Admin\AppData\Local\Temp\PwbOYmGghlan.exe"C:\Users\Admin\AppData\Local\Temp\PwbOYmGghlan.exe" 8 LAN2⤵
- Executes dropped EXE
PID:676
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C:\Windows\SysWOW64\icacls.exeicacls "C:\*" /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:2636
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C:\Windows\SysWOW64\icacls.exeicacls "D:\*" /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:2648
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y2⤵
- Suspicious use of WriteProcessMemory
PID:3164 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "audioendpointbuilder" /y3⤵PID:3340
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "samss" /y2⤵
- Suspicious use of WriteProcessMemory
PID:3364 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "samss" /y3⤵PID:3832
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y2⤵
- Suspicious use of WriteProcessMemory
PID:3320
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "samss" /y2⤵
- Suspicious use of WriteProcessMemory
PID:3568 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "samss" /y3⤵PID:3880
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "samss" /y2⤵PID:7188
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "samss" /y3⤵PID:7256
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "samss" /y2⤵
- Suspicious use of WriteProcessMemory
PID:7180 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "samss" /y3⤵PID:7248
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C:\Windows\SysWOW64\SCHTASKS.exeSCHTASKS /CREATE /NP /SC DAILY /TN "PrintQe" /TR "C:\Windows\System32\cmd.exe /c for /l %x in (1,1,50) do start wordpad.exe /p C:\users\Public\RKZ4I.dll" /ST 10:25 /SD 04/24/2021 /ED 05/01/20212⤵
- Creates scheduled task(s)
PID:2604
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "samss" /y2⤵PID:8828
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "samss" /y3⤵PID:8876
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C:\Windows\SysWOW64\net.exe"C:\Windows\System32\net.exe" stop "samss" /y2⤵PID:8820
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "samss" /y3⤵PID:8888
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C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop "audioendpointbuilder" /y1⤵PID:3392