715d91a13554941145b36e2e14a8add7762c7bb48b4852d13bd62f3e4917987c

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2024, 09:13

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General

Target
decddd27dd276fe3880bb0846d0de52b.dll
Size 548KB
Sample240326-k63a2seh77
SHA256 715d91a13554941145b36e2e14a8add7762c7bb48b4852d13bd62f3e4917987c
MD5 decddd27dd276fe3880bb0846d0de52b
SHA1 5917a2ee12432eb3e44bf7f1109a58c9c2749da7
SHA512 c8fe082a39c6d52faa0d11b6dae440f36fe2bde543446d2e8d6c7524e23ceb42af2bfeac999f5ead02c038eb80d22438e9bdb36f193ea08521320442adb46d75
SSDEEP 12288:TxMsh6UoyAv2z4JdZnsSv7vTBlJHjHa7aZnLadaVXbpGk0:9MyTYZNthKIn+daVXlGk
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

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\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\decddd27dd276fe3880bb0846d0de52b.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\decddd27dd276fe3880bb0846d0de52b.sb	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\decddd27dd276fe3880bb0846d0de52b.sb\ = "sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\decddd27dd276fe3880bb0846d0de52b.sb\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}\ProgID\ = "decddd27dd276fe3880bb0846d0de52b.sb"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\decddd27dd276fe3880bb0846d0de52b.sb\Clsid\ = "{CC01FC6C-F3D8-3C31-4274-42FC43EEDABB}"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 376	4604	regsvr32.exe	90
PID 4604 wrote to memory of 376	4604	regsvr32.exe	90
PID 4604 wrote to memory of 376	4604	regsvr32.exe	90

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\decddd27dd276fe3880bb0846d0de52b.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4604
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\decddd27dd276fe3880bb0846d0de52b.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:376

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

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Downloads

memory/376-0-0x00000000024D0000-0x000000000255E000-memory.dmp

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