b6908fb6d8d41c4eae7afaca466d2b9277709aa9b80216ddb650f1a6e1977e85

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 03:15

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General

Target

a9ee7065637cd040e680354576d820a0N.exe
Size

64KB
MD5

a9ee7065637cd040e680354576d820a0
SHA1

da024e7aa4174e55b0cee4260b4e3d2722ea38bc
SHA256

b6908fb6d8d41c4eae7afaca466d2b9277709aa9b80216ddb650f1a6e1977e85
SHA512

7c228540dcac4e2df37ba817e8441d8fce20728d184a4b87ae6c20f71c0829c4cbc5cc0cf5486d8acce8200ef6307c906b33c372957a85dfab757d15005e4a98
SSDEEP

768:V7Blpf/FAK65euBT37CPKKQSjSEXBwzEXBw3sgQw58eGkz2rcuesgQw58eGkz2rQ:V7Zf/FAxTWtnMdyGdyxykno

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4547) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/924-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023564-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/924-1814-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\msadc\it-IT\msadcer.dll.mui.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jdb.exe.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\TrebuchetMs.xml.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\mraut.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\ext\sunmscapi.jar.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Consolas-Verdana.xml.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Drawing.Common.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_Retail-ppd.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_OEM_Perp4-ppd.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_O16ConsumerPerp_Bypass30-ppd.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_OEM_Perp6-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Common Files\System\Ole DB\msdasql.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Crashpad\metadata.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Transactions.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ru\ReachFramework.resources.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTest-ppd.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Text.Encoding.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\WindowsFormsIntegration.resources.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\WindowsBase.resources.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Effects\Extreme Shadow.eftx.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusDemoR_BypassTrial365-ppd.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\wxpr.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\FirstRunLogo.contrast-black_scale-140.png.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Printing.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-handle-l1-1-0.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\zlib.md.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_Grace-ul-oob.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_MAK_AE-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\WacLangPackEula.txt.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Net.ServicePoint.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationUI.resources.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\api-ms-win-core-rtlsupport-l1-1-0.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\sawindbg.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365HomePremR_SubTrial1-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusEDUR_SubTrial-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\ospintl.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipsplk.xml.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.Requests.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\WindowsBase.resources.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Internet Explorer\ielowutil.exe.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTrial-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\InkObj.dll.mui.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\123.0.6312.122.manifest.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365ProPlusE5R_Subscription-ul-oob.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\PublisherVL_MAK-ul-oob.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Cartridges\msjet.xsl.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.OSM.OSM.x-none.msi.16.x-none.xml.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Publisher2019R_Retail-ul-oob.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.ReportingServices.RsClient.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\LogoImages\PowerPntLogo.contrast-black_scale-80.png.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Reflection.TypeExtensions.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365BusinessR_SubTrial-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Outlook2019R_Retail-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioPro2019XC2RVL_KMS_ClientC2R-ul.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OutlookR_Grace-ul-oob.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStdXC2RVL_KMS_ClientC2R-ul-oob.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\EXPTOOWS.XLA.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Formats.Tar.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\deploy\messages_zh_TW.properties.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\java.policy.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessPipcR_OEM_Perp-ppd.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription2-pl.xrm-ms.tmp	a9ee7065637cd040e680354576d820a0N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Data.dll.tmp	a9ee7065637cd040e680354576d820a0N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9ee7065637cd040e680354576d820a0N.exe

C:\Users\Admin\AppData\Local\Temp\a9ee7065637cd040e680354576d820a0N.exe
"C:\Users\Admin\AppData\Local\Temp\a9ee7065637cd040e680354576d820a0N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:924

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4328,i,8548254608087149642,10333768245962368401,262144 --variations-seed-version --mojo-platform-channel-handle=4304 /prefetch:8
1⤵
PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini.tmp

Filesize
65KB

MD5
cd2671ba22c45ee46ab23fbe9bcac0a9

SHA1
266b47a76bf508802b2f8a908e16d1ce77b6f2bf

SHA256
1d6a64820f8d977771ee66d3a268b475dfd712b817fb803679d1b5d060bae2aa

SHA512
c1875d175ce125590e6590b64f277e9bd8f1caa133c3ea158d361811efd3abdcdcbb8b245de8bec5a61c8387d61cd3ae114980958554493ac9d4e574ef845fc0

Download Submit
C:\Program Files\7-Zip\7-zip.chm.tmp

Filesize
177KB

MD5
c6f40a76d74cb98e42c9cf6b095c54d0

SHA1
564e02dab6cbb01b1a5119c1a51932254a417a9d

SHA256
12099be1688f4c572792cf74f130c9a45d712869674322f6cefcb4a5470c13f8

SHA512
865a32928efdfe0be1d070b4c89ace928f5e6c2bcfe1a15578a5372b5b8fdc8b69f7652b9fbb31b1ada34f299bcb994b2cddb3a9eb217ae397b592a2b0b7209f

Download Submit
memory/924-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/924-1814-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download