df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3

General

Target

df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.dll
Size

555KB
MD5

9ebd333253645b60145fe62568a83e4d
SHA1

19e393300391bcfc2b8d7040498ae7210b131747
SHA256

df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3
SHA512

2676f55a7f47edec3e99dbd084ac57b893753b4f1d091dba25e752716d79b8a8fb7151209806c1b796ab426297b315a13b8f55e91762dc7be98c629633770c43

Score

6^/10

adware stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
stealer adware

Modify Registry
T1112

Browser Extensions
T1176

Modifies registry class 11 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}\ = "BatXunBae"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.RaevbXenBho\Clsid\ = "{D58BC268-9135-45EB-A810-C390F05DC5CD}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}\ProgID\ = "df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.RaevbXenBho"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D58BC268-9135-45EB-A810-C390F05DC5CD}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.RaevbXenBho	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.RaevbXenBho\ = "BatXunBae"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.RaevbXenBho\Clsid	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

regsvr32.exe

description	pid	process	target process
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe
PID 1304 wrote to memory of 1676	1304	regsvr32.exe	regsvr32.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\df55bbc1dea83da1b6565a3160e1241e8a87efb94bc8b11c71684ce8b7653bf3.dll
2⤵
- Modifies registry class
PID:1676

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1304-54-0x000007FEFBDC1000-0x000007FEFBDC3000-memory.dmp

Filesize
8KB

Download
memory/1676-55-0x0000000000000000-mapping.dmp

Download
memory/1676-56-0x0000000076451000-0x0000000076453000-memory.dmp

Filesize
8KB

Download
memory/1676-57-0x0000000001DB0000-0x0000000001E30000-memory.dmp

Filesize
512KB

Download

Analysis

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