27b2744f6d737c8e86e1c35a65241abb1ddcf0e4017abcc1bdfd1af2e46fa499

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 02:12

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General

Target

761d7b6c96aaec486449301b2ed1cba3.dll
Size

245KB
MD5

761d7b6c96aaec486449301b2ed1cba3
SHA1

00030610deeb71676701164d7f5415fceec1051e
SHA256

27b2744f6d737c8e86e1c35a65241abb1ddcf0e4017abcc1bdfd1af2e46fa499
SHA512

e10dddbeaf99c8e66e0254944a05227ff01faf44ebf80c2daa0244a7e59c6a651b3dfc50355cfff36b9408a4e4d8c2047da37c55dcb3a2f53cc96c2ce442b81c
SSDEEP

3072:L/3VR+kKBY0jp9k66tVOU2BfihKbMU2l8RbBD5JLD0kyJLwpFWtOvEHyw4tDykGB:J/Ki0V976bmBqhAp2l8RbLByJcMahwU

Score

8^/10

adware stealer

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\mqdrc.sys	regsvr32.exe

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\{8728D167-41A6-4561-969C-CD75049F83AB}	regsvr32.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\761d7b6c96aaec486449301b2ed1cba3.dll	regsvr32.exe
File opened for modification	C:\Windows\SysWOW64\761d7b6c96aaec486449301b2ed1cba3.dll	regsvr32.exe
File created	C:\Windows\SysWOW64\dllcache\c_10093.n1s	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\761d7b6c96aaec486449301b2ed1cba3.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\761d7b6c96aaec486449301b2ed1cba3.RDS.Dataspace	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\761d7b6c96aaec486449301b2ed1cba3.RDS.Dataspace\ = "RDS.Dataspace"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\761d7b6c96aaec486449301b2ed1cba3.RDS.Dataspace\Clsid\ = "{8728D167-41A6-4561-969C-CD75049F83AB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}\ = "RDS.Dataspace"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\761d7b6c96aaec486449301b2ed1cba3.RDS.Dataspace\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{8728D167-41A6-4561-969C-CD75049F83AB}\ProgID\ = "761d7b6c96aaec486449301b2ed1cba3.RDS.Dataspace"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2548	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	regsvr32.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2436 wrote to memory of 2548	2436	regsvr32.exe	28
PID 2548 wrote to memory of 412	2548	regsvr32.exe	3

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:412

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\761d7b6c96aaec486449301b2ed1cba3.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\761d7b6c96aaec486449301b2ed1cba3.dll
  2⤵
  - Drops file in Drivers directory
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2548

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/412-2-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

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