Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 17:49
Behavioral task
behavioral1
Sample
l.exe
Resource
win7-20231129-en
windows7-x64
Behavioral task
behavioral2
Sample
l.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
l1.exe
Resource
win7-20240220-en
windows7-x64
Behavioral task
behavioral4
Sample
l1.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
l2.exe
Resource
win7-20240508-en
windows7-x64
Behavioral task
behavioral6
Sample
l2.exe
Resource
win10v2004-20240426-en
windows10-2004-x64
General
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Target
l2.exe
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Size
145KB
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MD5
76b23dd72a883d8b1302bb4a514b7967
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SHA1
338e19e8a3615c29d8a825ebba66cf55fa0caa2c
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SHA256
311edf744c2e90d7bfc550c893478f43d1d7977694d5dcecf219795f3eb99b86
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SHA512
39d98f914ec9d8551a894306163bc726f035f9228f3f198de78555988cea5a7b423be8c2a19913c76b996220a81a9b3a257b7f0af67913aa8a50b77321b17735
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SSDEEP
1536:azICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDtCYU0GsvgtwjECrozUYj3PeAU2:pqJogYkcSNm9V7DtCCGsg+AmYylQhTT
Malware Config
Signatures
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Renames multiple (357) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
Processes:
l2.exedescription ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-268080393-3149932598-1824759070-1000\desktop.ini l2.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-268080393-3149932598-1824759070-1000\desktop.ini l2.exe -
Modifies registry class 5 IoCs
Processes:
l2.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FihqnBxYm\DefaultIcon l2.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\FihqnBxYm l2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\FihqnBxYm\DefaultIcon\ = "C:\\ProgramData\\FihqnBxYm.ico" l2.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.FihqnBxYm l2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.FihqnBxYm\ = "FihqnBxYm" l2.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
l2.exepid Process 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe 1744 l2.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
l2.exedescription pid Process Token: SeAssignPrimaryTokenPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeDebugPrivilege 1744 l2.exe Token: 36 1744 l2.exe Token: SeImpersonatePrivilege 1744 l2.exe Token: SeIncBasePriorityPrivilege 1744 l2.exe Token: SeIncreaseQuotaPrivilege 1744 l2.exe Token: 33 1744 l2.exe Token: SeManageVolumePrivilege 1744 l2.exe Token: SeProfSingleProcessPrivilege 1744 l2.exe Token: SeRestorePrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSystemProfilePrivilege 1744 l2.exe Token: SeTakeOwnershipPrivilege 1744 l2.exe Token: SeShutdownPrivilege 1744 l2.exe Token: SeDebugPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeBackupPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe Token: SeSecurityPrivilege 1744 l2.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\l2.exe"C:\Users\Admin\AppData\Local\Temp\l2.exe"1⤵
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1744
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:1232
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD56934c6414569579e3051877f493534d1
SHA1d597105100c1abe14108e3184cb5a5c1b8907999
SHA25617c9d4cf65af94494aae3641178483c458af6f062f2e85f192feed14c19cdd81
SHA512cb2314e40ea9ba13684f8b7aa6d79864251e218eff8c917e59c57c7893d3c602f22147356bd93943712dad76dd7fb0640ce24ed2781e536c5ec1ae681910b28e
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Filesize
129B
MD5eca35a01bd4ddc294622afb17fcf7718
SHA1cab8ed961921db0acc7085f866f20937d58104ca
SHA2564dfc8896cc94825f280776a7b533b0c6423fe414e1c41b5120c5f92a2a94f656
SHA5127ab401e705ce5f06cc638d42450a0064670272d6b2c5dbe267b63b417d8c4448d9d27282f44637f7878d3233da9a6f6c2ab908a7beee824dfcbd6511006456e7