Analysis
- max time kernel
150s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/04/2026, 10:20
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe
Resource
win11-20260130-en
windows11-21h2-x64
5 signatures
150 seconds
General
- Target a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe
- Size 12.5MB
- Sample260429-mc7psaat7x
- SHA256 a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1
- MD5 017e4242b46c300cb01207394263928e
- SHA1 de8c0393a0e01d1188354ae163443dfc524305a0
- SHA512 2040db59c9bab9cde60cea801f242b8a921c585be7803fedec44e66df49433b6993c0eabefbe026874a209a98db2dacedd2147a26d828fc4b697079c1ec8b05f
- SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5Bw:rE0XQGMN6bbMLP+2zqqGGEt
- TLSH T17BD629BE6F64FC609880AC52D9B2CE50DD8F5C827199C430857EF9608E44ED1CDADAB7
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Detects Cosmu payload 2 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral2/memory/3404-0-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu behavioral2/memory/3404-46-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu - Renames multiple (220) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-GB\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\ea-sym.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ext.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ku.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVClientIsv.man.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIntegration.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ko-kr.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\es-ES\InkObj.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\es-ES\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad\auxbase.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\zh-cn.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_rtl.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\IpsMigrationPlugin.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ka.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\mr.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\de-DE\TipRes.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\ShapeCollector.exe.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrlatinlm.dat.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\hi.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ja.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\he-IL\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ms.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\i640.cab.cat.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\tabskb.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-changjei.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\it-IT\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\descript.ion.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ky.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVManifest.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.ms-my.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad\ea.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\he.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-heap-l1-1-0.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientEventLogMessages.man.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\es-ES\InputPersonalization.exe.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\insert\insertbase.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\bg-BG\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\7-zip32.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\kaa.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ru.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-multibyte-l1-1-0.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RHeartbeatConfig.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.da-dk.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\uz.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\History.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\nl.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.bg-bg.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\de-DE\mshwLatin.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\el-GR\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\rtscom.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\th.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\tt.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\zh-tw.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Uninstall.exe.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\af.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\gl.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\mn.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lv-lv.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.de-de.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\keypad.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe"C:\Users\Admin\AppData\Local\Temp\a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:3404
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-2122505878-652277452-2375749442-1000\desktop.ini.tmp
- Size 12.5MB
- SHA256 c18af602af022d8b97bdafe039c0e3d36547e037549c9aabbc9c71650f84847d
- MD5 5ab8dd8ccee148d85bdc9137ec8d6229
- SHA1 2693f7a7e786110c2226c3509b5a1c53d8692206
- SHA512 e9e84801e32fcda7df0bb81f6402078e3eb4fb616a1d481e675e65bf102262c73ea7c5abddd6c129992487716438ea03122be170417abfe06a2080e814c1e991
- SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5B2:rE0XQGMN6bbMLP+2zqqGGEj
- TLSH T1E2D629BE6F64FC609880AC52D9B2CE50DD8F5C827199C430857EF9608E44ED1CDADAB7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 12.6MB
- SHA256 87b0d6c737b9a3d41242a4ce0fb2c2991c6ca82b949d16933c9ff3a8d93eb8ad
- MD5 e5065655ca35ae334a08b04dbb0dab88
- SHA1 3787159574cb88a66ce5914a977419d052e619d9
- SHA512 13fbdb9d79568492daf278afe7f284653825a7e712a31450cc899957d45413b204dfbff21568fa39c09b872eee71342756f19261a3fcd475e36c7da75f7f2a18
- SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5B3:rE0XQGMN6bbMLP+2zqqGGEG
- TLSH T126D639BE6F64FC608880AC5299B2CE50DD8F5C827599C430857EF9608E44ED1CDADAF7
- MD5 SHA1 SHA512 SSDEEP TLSH