63e7263fbc54c4903a8a9800166a0d3741b49c4f19e8be864005c4be6b4272af

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2024 18:53

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General

Target

79e291386ffce5158f84673f74ffb770N.exe
Size

49KB
MD5

79e291386ffce5158f84673f74ffb770
SHA1

7ddca256cda93d8efe04044dbd0aa80622af1c54
SHA256

63e7263fbc54c4903a8a9800166a0d3741b49c4f19e8be864005c4be6b4272af
SHA512

d115bc952c93e792b22fc506406d1247fb7d2db54c7ea0f2008396835e255a408e3fb7b54e85e86744ccd38dd2f4301670141ffaea9c1fc02cf4bc1f3c70359c
SSDEEP

768:kBT37CPKKdJJcbQbf1Oti1JGBQOOiQJhATNyHF/MF/6m0m+s2BGUG3oxoYM2M+ST:CTW7JJZENTNyl2Sm0mKdSarSaS

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4359) 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/4928-0-0x0000000000400000-0x000000000040A000-memory.dmp	upx
behavioral2/files/0x000900000002360a-2.dat	upx
behavioral2/files/0x000600000001690a-6.dat	upx
behavioral2/memory/4928-809-0x0000000000400000-0x000000000040A000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\PackageManifests\AppXManifest.90160000-3102-0000-1000-0000000FF1CE.xml.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_EnterpriseSub_Bypass30-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProjectStdXC2RVL_MAKC2R-ul-phn.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\sqmapi.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2R32.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\vcruntime140_1.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Resources.Reader.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\de\ReachFramework.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\fr\System.Windows.Forms.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-sysinfo-l1-1-0.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-runtime-l1-1-0.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Grace-ppd.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\7-Zip\Lang\is.txt.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\fr-FR\rtscom.dll.mui.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\lib\javafx-mx.jar.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Colors\Paper.xml.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProfessionalR_Grace-ppd.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Linq.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\WindowsBase.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\ja\System.Windows.Forms.Design.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\System.Security.Cryptography.ProtectedData.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\ucrtbase.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Xaml.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ipschs.xml.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.ComponentModel.EventBasedAsync.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jre-1.8\bin\plugin2\vcruntime140.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Personal2019R_Grace-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\1033\QuickStyles\bwnumbered.dotx.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\EduWorks Data Streamer Add-In\DataStreamerLibrary.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\it\System.Windows.Input.Manipulations.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\eula.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\pl\ReachFramework.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jstat.exe.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\pkcs11wrapper.md.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jre-1.8\lib\charsets.jar.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeStudent2019DemoR_BypassTrial180-ppd.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hans\System.Xaml.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ko\UIAutomationProvider.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ja\System.Windows.Forms.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\lib\jsse.jar.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\colorimaging.md.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Threading.Overlapped.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Runtime.Intrinsics.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\bin\prism_common.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_OEM_Perp-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\7-Zip\readme.txt.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\cs\System.Windows.Controls.Ribbon.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\zh-Hans\System.Windows.Forms.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Locales\sk.pak.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Extensions.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Diagnostics.DiagnosticSource.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\OneNoteR_OEM_Perp-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.osmuxmui.msi.16.en-us.xml.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_OEM_Perp2-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioProO365R_SubTest-ul-oob.xrm-ms.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\PowerPivot Excel Add-in\Microsoft.Office.Interop.Excel.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\mscordaccore.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Xml.ReaderWriter.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationCore.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\UIAutomationClientSideProviders.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hant\PresentationFramework.resources.dll.tmp	79e291386ffce5158f84673f74ffb770N.exe
File created	C:\Program Files\Java\jdk-1.8\jre\legal\jdk\santuario.md.tmp	79e291386ffce5158f84673f74ffb770N.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	79e291386ffce5158f84673f74ffb770N.exe

C:\Users\Admin\AppData\Local\Temp\79e291386ffce5158f84673f74ffb770N.exe
"C:\Users\Admin\AppData\Local\Temp\79e291386ffce5158f84673f74ffb770N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:4928

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=4248,i,15436195446242760253,4000484513008731869,262144 --variations-seed-version --mojo-platform-channel-handle=4308 /prefetch:8
1⤵
PID:1168

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
49KB

MD5
0b61c2d764a249d146664f94647419dd

SHA1
d4484dfde388ad54b641b99cf6864cce727f7c04

SHA256
52a1fb80919497f9c000e7dfdcc0b1d90747fd8ff77c57892d910fc2292c776b

SHA512
8fafd6990ab37f43c6af94abdbe5d10cd60dc9eb2e7ba598f72a12de641d32b1793905b6ba8af9351527ccd073ea2cdc647714775a60aafe3e75e22d468f52d9

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

Filesize
161KB

MD5
ba475c5c058094eee4ba700ec453a97c

SHA1
5aee04b6e5e02c799f547bb30a7335c335ec7cd7

SHA256
7f6e0cb852a52b8eeaa1e87d12b845d8c65a8d79b347152c9c9faa63607c616a

SHA512
2661b8190018bdb470402bb7baf757172067ea377edcbd7e55f24ec4e0de35b58de2e155b6c02557351166aa53538c2770d93226f9f9f6c0a5fa916a846f274c

Download Submit
memory/4928-0-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4928-809-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download