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Analysis
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max time kernel
43s -
max time network
30s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
01/02/2025, 15:10
Static task
static1
Behavioral task
behavioral1
Sample
visa chker (2).exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
visa chker (2).exe
Resource
win10v2004-20250129-en
General
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Target
visa chker (2).exe
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Size
352KB
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MD5
16f434baf75d91420e232e8ba8ca1b2a
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SHA1
050485704f51dc24b8c36da438ef9af6cc8b8ea5
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SHA256
aa37a91d02342e352c232f16f028fee2148794db8306d71888949c18e194f4e0
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SHA512
d1ba40fe0a243653aeb765720aae32d1e5b6926f60ec2818723cc38edfd0be16c9c44c8c9e1e4aa6dd695d30d3b704d33010d2c40a7266f912590441d86c9e32
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SSDEEP
6144:cdRVzSkGTxSLD8uq5CaOPs47bhqUdh8SfkSE6GoE6Jrtqaw9/0G5:chqxSLo5C1Ps4Xhf8S8SRdvqawp0G5
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1335250212557553664/Oms0E9sA-BluxlQ8a6nVRKSu9r0-8RrnXNd784nPqqAqA4oT0r-8bktBBJO1h9UNPvm-
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule behavioral1/files/0x00090000000120fe-3.dat family_umbral -
Umbral family
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System Location Discovery: System Language Discovery 1 TTPs 5 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 visa chker (2).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language visa chker (2).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language visa chker (2).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language visa chker (2).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language visa chker (2).exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: 33 2944 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2944 AUDIODG.EXE Token: 33 2944 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2944 AUDIODG.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"1⤵
- System Location Discovery: System Language Discovery
PID:2308
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C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"1⤵
- System Location Discovery: System Language Discovery
PID:2796
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C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"1⤵
- System Location Discovery: System Language Discovery
PID:2952
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:2924
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5081⤵
- Suspicious use of AdjustPrivilegeToken
PID:2944
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C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"1⤵
- System Location Discovery: System Language Discovery
PID:2176
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C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"C:\Users\Admin\AppData\Local\Temp\visa chker (2).exe"1⤵
- System Location Discovery: System Language Discovery
PID:2648
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
229KB
MD5c9e39a6033e4a4399063b8d15e57800e
SHA128fda7d8cfec95943fff27c4fda45da97318bb67
SHA25694a4bb3d59972839fc26214ae5aeb004c88cf899e44eca49e460cc43f28d0dc2
SHA5120b37422b8b4233206d559f584695d8135b325eb31d78ac97ee674ddc33494c72010170500ce39a1467b8acfb8289f68b059460a4f99ca913cdbee20430867f06