355fd9f636aef9745650d99cc518de32f07f9ab175bb168a4a448568465da57d

Analysis

max time kernel
138s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2024, 13:55

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General

Target
922aa797147987a2d4afe7cef420d9fb.dll
Size 86KB
Sample240205-q8f4gshcd2
SHA256 355fd9f636aef9745650d99cc518de32f07f9ab175bb168a4a448568465da57d
MD5 922aa797147987a2d4afe7cef420d9fb
SHA1 318f775ff28f788fc40a92a7694e177765cb4423
SHA512 9007f5c2b737a7ad86e33378f5642e80d16e5cdaacf770bcba6dc3450252969afcb1bd40080949ab3afc2c05358151c9b084365b8223b3f3a0486fb4a41f0a4a
SSDEEP 1536:vYvynn+A2VD+Kcup+/fFgN0XI2LFnD5lUXrBtEAwRg/afde6KPoimhKFvsq:Av4+AShcuUfK0XI6DrMXwReafIjo9K
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4660-0-0x0000000000520000-0x000000000055C000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8EF8B03D-4E5F-4324-BFD9-03F60F16400B}	regsvr32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8EF8B03D-4E5F-4324-BFD9-03F60F16400B}\InprocServer32\ThreadingModel = "apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8EF8B03D-4E5F-4324-BFD9-03F60F16400B}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8EF8B03D-4E5F-4324-BFD9-03F60F16400B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8EF8B03D-4E5F-4324-BFD9-03F60F16400B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\922aa797147987a2d4afe7cef420d9fb.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5108 wrote to memory of 4660	5108	regsvr32.exe	86
PID 5108 wrote to memory of 4660	5108	regsvr32.exe	86
PID 5108 wrote to memory of 4660	5108	regsvr32.exe	86

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\922aa797147987a2d4afe7cef420d9fb.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5108
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\922aa797147987a2d4afe7cef420d9fb.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:4660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4660-0-0x0000000000520000-0x000000000055C000-memory.dmp

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