cc96b95a9ccea448e1efd3fca204f79223fe43b89ae43c2de61644738006affb

General

Target
8d818d70745f9e69d116c57134e01ca2.dll
Size 604KB
Sample240203-2bvfdsdgbp
SHA256 cc96b95a9ccea448e1efd3fca204f79223fe43b89ae43c2de61644738006affb
MD5 8d818d70745f9e69d116c57134e01ca2
SHA1 ee3f6d0b60c4ff856a4a25ff3c036462bf506a6f
SHA512 0517a75d2365de14bf6ef51c7f1f3ad7acb3476a88e3729487437535940ee4b3aab376125ae106d25e5a292d35ba35a3ddfd949c634d1eafa65bf1d25dbc8753
SSDEEP 12288:9cb5mvOkPaEeB51gwet69/hgGULh7+yQ5djK+5SUMcDkpz:0waCwet8nULhi9L15SUMfpz
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

adware stealer

Malware Config

Signatures

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

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{492D6406-DC6F-4885-A8A2-C970E38B12CA}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{492D6406-DC6F-4885-A8A2-C970E38B12CA}\NoExplorer = "1"	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 17 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Toolbar\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}	regsvr32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{113416D5-C2E3-11EE-8184-527BFEDB591A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Modifies registry class 13 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{492D6406-DC6F-4885-A8A2-C970E38B12CA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{492D6406-DC6F-4885-A8A2-C970E38B12CA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{492D6406-DC6F-4885-A8A2-C970E38B12CA}\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d818d70745f9e69d116c57134e01ca2.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{492D6406-DC6F-4885-A8A2-C970E38B12CA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}\ = "TabChoice"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{07C93B4E-4625-4C84-BA7E-BCA231037B0B}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{492D6406-DC6F-4885-A8A2-C970E38B12CA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d818d70745f9e69d116c57134e01ca2.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{492D6406-DC6F-4885-A8A2-C970E38B12CA}\ = "TabChoice"	regsvr32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4520	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4520	iexplore.exe
4520	iexplore.exe
4860	IEXPLORE.EXE
4860	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 1068	412	regsvr32.exe	85
PID 412 wrote to memory of 1068	412	regsvr32.exe	85
PID 412 wrote to memory of 1068	412	regsvr32.exe	85
PID 4520 wrote to memory of 4860	4520	iexplore.exe	88
PID 4520 wrote to memory of 4860	4520	iexplore.exe	88
PID 4520 wrote to memory of 4860	4520	iexplore.exe	88

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8d818d70745f9e69d116c57134e01ca2.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:412
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8d818d70745f9e69d116c57134e01ca2.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:1068

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:1128

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4520 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1068-0-0x0000000000400000-0x00000000005C5000-memory.dmp

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memory/1068-1-0x0000000001050000-0x0000000001053000-memory.dmp

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memory/1068-3-0x0000000001050000-0x0000000001053000-memory.dmp

Download

memory/1068-2-0x0000000002B40000-0x0000000002B41000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads