Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-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 behavioral1/memory/3772-0-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu behavioral1/memory/3772-50-0x0000000000400000-0x0000000000407000-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\ink\IpsMigrationPlugin.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\uz.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\License.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\oskclearui.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrdeslm.dat.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwritalm.dat.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipsnld.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\pa-in.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\sq.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\th.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.es-es.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.lt-lt.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\af.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\lij.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\sr-spc.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fr-CA\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\Common Files\microsoft shared\ink\ipsid.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\7-zip.chm.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\et.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\he.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\io.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-convert-l1-1-0.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sr-latn-rs.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\da-DK\tipresx.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\ko-kr.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l2-1-0.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-synch-l1-2-0.dll.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\ink\fsdefinitions\osknav.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\InkDiv.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\de.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\gu.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\kk.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\si.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcp120.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\cs.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l1-2-0.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVIsvVirtualization.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.kk-kz.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\msvcr120.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\auxpad.xml.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\Common Files\microsoft shared\ClickToRun\AppVIsvApi.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\msix.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\SubsystemController.man.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\ucrtbase.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\micaut.dll.mui.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\fi.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\it.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVFileSystemMetadata.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.fi-fi.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.tr-tr.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\offreg.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\7z.sfx.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\nn.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-conio-l1-1-0.dll.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\Common Files\microsoft shared\ink\dicjp.bin.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\Common Files\microsoft shared\ink\ipshe.xml.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\be.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\fy.txt.tmp a001e0c58f3643674d033ee33351069db4f01c898d9685befad58e37904f6ec1.exe File created C:\Program Files\7-Zip\Lang\ro.txt.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:3772
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\$Recycle.Bin\S-1-5-21-2714754311-527593155-1440850301-1000\desktop.ini.tmp
- Size 12.5MB
- SHA256 41686351d1116483ba38dd191842ef20abf14831442599a7cb13484e707a2571
- MD5 ad539994a3565ffa0a37836add3d0095
- SHA1 a2a97e43d4bb76570665117359da89b2a7c5b53e
- SHA512 345de81df37bfe97120e9db6c6c4fe89cc901b585ce01a01718e58303dfc200db698bf9131715811260ac300ed5c9bb0ad9b6ae2ead4815f8383ed8974df557a
- SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5BI:rE0XQGMN6bbMLP+2zqqGGER
- TLSH T10FD629BE6F64FC609880AC52D9B2CE50DD8F5C827199C430857EF9608E44ED1CDADAB7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\7-Zip\7-zip.dll.tmp
- Size 12.6MB
- SHA256 f88fb3e6764d32ab150dc5ea2b9b83d59587c876264c57bc9e8a148caa139fc9
- MD5 8391f7763a384f99f94f24540d8c05da
- SHA1 f0290050d1c7c77d437045a4db2ebb990ea60405
- SHA512 7cb0413e0d5271234301868d4deb7fdced36add102180e9f8ea35b61f17bf207efa0affc8b008217b954eb6af79b07d29331f414d351c26418f819356b07bd45
- SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5BC:rE0XQGMN6bbMLP+2zqqGGEz
- TLSH T1FDD639BE6F64FC608880AC5299B2CE50DD8F5C827599C430857EF9608E44ED1CDADAF7
- MD5 SHA1 SHA512 SSDEEP TLSH