Analysis
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max time kernel
122s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 18:00
Behavioral task
behavioral1
Sample
l.exe
Resource
win7-20240221-en
windows7-x64
Behavioral task
behavioral2
Sample
l.exe
Resource
win10v2004-20240426-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
l1.exe
Resource
win7-20240508-en
windows7-x64
Behavioral task
behavioral4
Sample
l1.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
l2.exe
Resource
win7-20240220-en
windows7-x64
Behavioral task
behavioral6
Sample
l2.exe
Resource
win10v2004-20240508-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 (320) 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-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini l2.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini l2.exe -
Modifies registry class 5 IoCs
Processes:
l2.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.FihqnBxYm\ = "FihqnBxYm" l2.exe 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 -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
l2.exepid Process 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe 2348 l2.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
l2.exedescription pid Process Token: SeAssignPrimaryTokenPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeDebugPrivilege 2348 l2.exe Token: 36 2348 l2.exe Token: SeImpersonatePrivilege 2348 l2.exe Token: SeIncBasePriorityPrivilege 2348 l2.exe Token: SeIncreaseQuotaPrivilege 2348 l2.exe Token: 33 2348 l2.exe Token: SeManageVolumePrivilege 2348 l2.exe Token: SeProfSingleProcessPrivilege 2348 l2.exe Token: SeRestorePrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSystemProfilePrivilege 2348 l2.exe Token: SeTakeOwnershipPrivilege 2348 l2.exe Token: SeShutdownPrivilege 2348 l2.exe Token: SeDebugPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeBackupPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 l2.exe Token: SeSecurityPrivilege 2348 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:2348
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1481⤵PID:1204
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5e02a6faa98967fed2791ce7ba0461a91
SHA1c13f70bc8429c5a3d74bd32ce58ecf846fbb7f23
SHA25637880dae5ab002bb442d17f65b8f43c573a2f7951027d76197a165791583f8cc
SHA5120505cc67dc8632c83b58cd5355f9b2798edb6f56157dfed14bc99f2ab8105fe676a6b7781f6fed48a11011ff78c4721a2db9e379d57761eca3626c91fbc61857
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Filesize
129B
MD54314ae19ff5d692107a9a5656ef60e4d
SHA17d183e548570c8338675e8661439ed0531ad5ed7
SHA256f3682b2e5d1f50c243537857edbd7b1c6607a6a43c81465cc4bc82baa1cb359e
SHA512698dc324ab550ffdac2eab37ff80f239b205237b4cc1ca16c5d5bcf1c73f28350d506f60ee536242aa3c03b8311a7f0bd38ccc2850038c4d7eeac1724fd88b57