76382b8e67abdc2cece5d7b166d38011d911b60fc3ebcca895e84bc0bdbcd641

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 23:32

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General

Target

76382b8e67abdc2cece5d7b166d38011d911b60fc3ebcca895e84bc0bdbcd641.dll
Size

92KB
MD5

ed9f10a34be2bd1b9dcd2ef7d192abd1
SHA1

db578e01a142083439b179adf5f60a4ed8ea2984
SHA256

76382b8e67abdc2cece5d7b166d38011d911b60fc3ebcca895e84bc0bdbcd641
SHA512

71d25219e5c80ed6640a4449a1c2e9f43229017779198443b12cdb4f12af6920a15c21c7a6b4d203fca511c5debe831df841d0e6a1f1a21a7a38603aa2140e85
SSDEEP

1536:kG0veeOFJDn/Vsx10GiGVRHgGnzGycsrxiHLzExAE/LAAoAQR5T+0E2fvYr:kGQNOPLtsf0GHRHgVnLHU1/LAJP+n2fI

Score

8^/10

adware stealer upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1336-133-0x00000000755A0000-0x00000000755E0000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}\NoExplorer = "1"	regsvr32.exe

Modifies registry class 5 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}\ = "ThnuderAtDown Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAC4596E-DBAB-091B-2D7B-5B25D8B2DA3B}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\76382b8e67abdc2cece5d7b166d38011d911b60fc3ebcca895e84bc0bdbcd641.dll"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1264 wrote to memory of 1336	1264	regsvr32.exe	regsvr32.exe
PID 1264 wrote to memory of 1336	1264	regsvr32.exe	regsvr32.exe
PID 1264 wrote to memory of 1336	1264	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\76382b8e67abdc2cece5d7b166d38011d911b60fc3ebcca895e84bc0bdbcd641.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1264

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\76382b8e67abdc2cece5d7b166d38011d911b60fc3ebcca895e84bc0bdbcd641.dll
2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1336

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1336-132-0x0000000000000000-mapping.dmp

Download
memory/1336-133-0x00000000755A0000-0x00000000755E0000-memory.dmp

Filesize
256KB

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