Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27/02/2025, 04:47
Static task
static1
Behavioral task
behavioral1
Sample
c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe
Resource
win10v2004-20250217-en
General
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Target
c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe
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Size
48KB
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MD5
1d15f899d2976be3263a261149bece63
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SHA1
128ec42a8c7f2d6a962500418dadfafe458796c0
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SHA256
c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78
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SHA512
7c7be0034fccd36af7103aa460bd10d7bfd0cbde8267f7a93284c64040c7878a1b3b1bc20c5fe222fb8a1f04906534c1dff02720530844095631350421b955ab
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXC:E1oEFlt6vghzwYu7vih9GueIh9j2IoHE
Malware Config
Extracted
blihanstealer
pomdfghrt
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user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)
Signatures
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BlihanStealer
Blihan is a stealer written in C++.
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Blihanstealer family
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Deletes itself 1 IoCs
pid Process 1688 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 1688 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\HidePlugin.dll microsofthelp.exe File created C:\Windows\microsofthelp.exe c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2108 wrote to memory of 1688 2108 c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe 30 PID 2108 wrote to memory of 1688 2108 c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe 30 PID 2108 wrote to memory of 1688 2108 c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe 30 PID 2108 wrote to memory of 1688 2108 c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe"C:\Users\Admin\AppData\Local\Temp\c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
PID:1688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD5ff35d701f80bc242affe27cba2cb5880
SHA156a779e89adc2615219eaa1fd9d55ceddf40b559
SHA25612557ccf87c1a282c76fbc1f21dbf1971cbdfc58c91d24f9fdb487f60f54b2e9
SHA51258fbe599a4ecd333a7595e2b1daace6530301d37313a3d2e82823527baaa8ea95a397f9a17cb91d7123f45c70c7049f5e6ead0bbeeb92fb22a0bf9cbe25557e6