1cf550d7a249a2bd4bf4cc96c747bcd9ceb7fff6009600775fb17930f8071ebd

Analysis

max time kernel
149s
max time network
158s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
30/07/2026, 22:32

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General

Target
$R0/Uninstall yeteraaq.exe
Size 224KB
Sample260730-2gft7agm2x
SHA256 1cf550d7a249a2bd4bf4cc96c747bcd9ceb7fff6009600775fb17930f8071ebd
MD5 b99897f6362dfb425c1b587b701fae66
SHA1 4eccf42118667e94a3984da7063d87ec93ef10ff
SHA512 b1aa7c47868f53a99607269d49f147122f2b0ed6fddcab3a1ceeab13f80bea64ed00dc3599ce8199e1fa416fca823d6e76c02436783ba2455995484465382069
SSDEEP 3072:4n77v00hEoDEtauZnqVlGA9gcet8q1g3Zn7yq65ZzMCCT+taH2tvhOEA1RJCir82:4740IlyN9M83b6fLCits2t0EyL+yag
TLSH
T19A240105EBA0D067E0E70BB216F9C3932FB2F11628684B477784576E7C56B52DE1CB82
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
904	Un_A.exe

Loads dropped DLL 6 IoCs

pid	Process
904	Un_A.exe
904	Un_A.exe
904	Un_A.exe
904	Un_A.exe
904	Un_A.exe
904	Un_A.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	Uninstall yeteraaq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
904	Un_A.exe
904	Un_A.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3824 wrote to memory of 904	3824	Uninstall yeteraaq.exe	79

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall yeteraaq.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall yeteraaq.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3824
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\$R0\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:904

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

StdUtils.dll

Path C:\Users\Admin\AppData\Local\Temp\nswA237.tmp\StdUtils.dll
Size 100KB
SHA256 b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e
MD5 c6a6e03f77c313b267498515488c5740
SHA1 3d49fc2784b9450962ed6b82b46e9c3c957d7c15
SHA512 9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803
SSDEEP 3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v
TLSH
T125A33B62A2FA9CF5E4E70B3D1469BB264CBB7B383431D93F2342054B8534586DA2D35B
MD5 SHA1 SHA512 SSDEEP TLSH

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System.dll

Path C:\Users\Admin\AppData\Local\Temp\nswA237.tmp\System.dll
Size 12KB
SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
TLSH
T1BA428E12977049F2F1A0183C10A67F265FBEAE5C1BE445A39FE380867D652DF9436343
MD5 SHA1 SHA512 SSDEEP TLSH

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WinShell.dll

Path C:\Users\Admin\AppData\Local\Temp\nswA237.tmp\WinShell.dll
Size 3KB
SHA256 9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6
MD5 1cc7c37b7e0c8cd8bf04b6cc283e1e56
SHA1 0b9519763be6625bd5abce175dcc59c96d100d4c
SHA512 7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f
TLSH
T16A51365F13BED7A4C3071738A6FBDC85749B440012C659558BB2172ABF141E0BB3CD08
MD5 SHA1 SHA512 TLSH

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nsExec.dll

Path C:\Users\Admin\AppData\Local\Temp\nswA237.tmp\nsExec.dll
Size 6KB
SHA256 5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962
MD5 ec0504e6b8a11d5aad43b296beeb84b2
SHA1 91b5ce085130c8c7194d66b2439ec9e1c206497c
SHA512 3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57
SSDEEP 96:YjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNq3m+s:JbogRtJzTlNR8qD85uGgmkNr
TLSH
T173D109B836C20CF3D54E46743E22381713FEE4761B7502A18B976ED61D92AE2FE20781
MD5 SHA1 SHA512 SSDEEP TLSH

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Un_A.exe

Path C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
Size 224KB
SHA256 1cf550d7a249a2bd4bf4cc96c747bcd9ceb7fff6009600775fb17930f8071ebd
MD5 b99897f6362dfb425c1b587b701fae66
SHA1 4eccf42118667e94a3984da7063d87ec93ef10ff
SHA512 b1aa7c47868f53a99607269d49f147122f2b0ed6fddcab3a1ceeab13f80bea64ed00dc3599ce8199e1fa416fca823d6e76c02436783ba2455995484465382069
SSDEEP 3072:4n77v00hEoDEtauZnqVlGA9gcet8q1g3Zn7yq65ZzMCCT+taH2tvhOEA1RJCir82:4740IlyN9M83b6fLCits2t0EyL+yag
TLSH
T19A240105EBA0D067E0E70BB216F9C3932FB2F11628684B477784576E7C56B52DE1CB82
MD5 SHA1 SHA512 SSDEEP TLSH

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