a55085cae8d1609ebdc77079f91d5b715de12ca7387244b70d9a7026aa76eb5e

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 14:05

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General

Target
9bdf57ecbceba38164cf43425d025edc.dll
Size 562KB
Sample240214-rd1ebadf94
SHA256 a55085cae8d1609ebdc77079f91d5b715de12ca7387244b70d9a7026aa76eb5e
MD5 9bdf57ecbceba38164cf43425d025edc
SHA1 dc2473c99a6beff9801367ea78b0487bc272a2d6
SHA512 21d1f5d7a472eed10ab254219aea2fd4482f6a33ca5c04c5ff26633dd31a097dacea79977f89391d6372b3470618688356bb120e47b7a94d86973f289dee1534
SSDEEP 12288:40Et9YDc/Tk4Po4wSSqodPF9C2vTgYn6r13RN:AtWDcw4o4Ts/9CknYRR
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-922B-B718-AE82-6E9BE7CFB5B1}	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\9bdf57ecbceba38164cf43425d025edc.sh	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}\ProgID\ = "9bdf57ecbceba38164cf43425d025edc.sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}\ = "sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9bdf57ecbceba38164cf43425d025edc.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\9bdf57ecbceba38164cf43425d025edc.sh\ = "sh"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\9bdf57ecbceba38164cf43425d025edc.sh\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\9bdf57ecbceba38164cf43425d025edc.sh\Clsid\ = "{CC01FC6C-922B-B718-AE82-6E9BE7CFB5B1}"	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 1660	836	regsvr32.exe	28
PID 836 wrote to memory of 1660	836	regsvr32.exe	28
PID 836 wrote to memory of 1660	836	regsvr32.exe	28
PID 836 wrote to memory of 1660	836	regsvr32.exe	28
PID 836 wrote to memory of 1660	836	regsvr32.exe	28
PID 836 wrote to memory of 1660	836	regsvr32.exe	28
PID 836 wrote to memory of 1660	836	regsvr32.exe	28

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\9bdf57ecbceba38164cf43425d025edc.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\9bdf57ecbceba38164cf43425d025edc.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  PID:1660

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/1660-0-0x0000000000880000-0x0000000000912000-memory.dmp

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