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
Behavioral task
behavioral2
Sample
l.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral3
Sample
l1.exe
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
l1.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
l2.exe
Resource
win7-20240220-en
Behavioral task
behavioral6
Sample
l2.exe
Resource
win10v2004-20240508-en
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
description 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
description 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
pid 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
description 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