7def19525a3bf0067d6147b1bfd33b720bac523f0cd38c882a2d742ac36abd40

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2024, 16:18

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General

Target

4ec667a1d6a962070df636a75905e677.exe
Size

91KB
MD5

4ec667a1d6a962070df636a75905e677
SHA1

50bdcae3c5fdd60a437ea8779a227f53ea2be0f9
SHA256

7def19525a3bf0067d6147b1bfd33b720bac523f0cd38c882a2d742ac36abd40
SHA512

8f1197ed7d161aade177ad2929a44564d8cdf9dba99caac93b7e44c1b9f02a1b2a51eaead4f1d8796fcf95af02b56435165cd1311e2d0c4132c30f7baf2d41fa
SSDEEP

768:XTToANTmNOdkk7taeICWzDpCMJrBDsX9MihU+jdVZWtdATTo1:XTToANqNOdRDWzdnsdhUsZWtWTTo1

Score

7^/10

adware stealer upx

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
3584	regsvr32.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3924-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/3924-10-0x0000000000400000-0x0000000000418000-memory.dmp	upx

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ = "??????"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	regedit.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\khaxhakvggiqgmufrdyi\dllxgfazkrgqr.dll	4ec667a1d6a962070df636a75905e677.exe
File created	C:\Windows\reg.reg	4ec667a1d6a962070df636a75905e677.exe
File created	C:\Windows\userid.txt	4ec667a1d6a962070df636a75905e677.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 45 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32\ = "C:\\Windows\\khaxhakvggiqgmufrdyi\\dllxgfazkrgqr.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ProgID\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\ = "QvodAdBlocker"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR\ = "C:\\Windows\\khaxhakvggiqgmufrdyi"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "_QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32\ = "C:\\Windows\\khaxhakvggiqgmufrdyi\\dllxgfazkrgqr.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "_QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid\ = "{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
868	regedit.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3924	4ec667a1d6a962070df636a75905e677.exe
3924	4ec667a1d6a962070df636a75905e677.exe
3924	4ec667a1d6a962070df636a75905e677.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 3584	3924	4ec667a1d6a962070df636a75905e677.exe	100
PID 3924 wrote to memory of 3584	3924	4ec667a1d6a962070df636a75905e677.exe	100
PID 3924 wrote to memory of 3584	3924	4ec667a1d6a962070df636a75905e677.exe	100
PID 3924 wrote to memory of 3340	3924	4ec667a1d6a962070df636a75905e677.exe	101
PID 3924 wrote to memory of 3340	3924	4ec667a1d6a962070df636a75905e677.exe	101
PID 3924 wrote to memory of 3340	3924	4ec667a1d6a962070df636a75905e677.exe	101
PID 3340 wrote to memory of 868	3340	cmd.exe	103
PID 3340 wrote to memory of 868	3340	cmd.exe	103
PID 3340 wrote to memory of 868	3340	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\4ec667a1d6a962070df636a75905e677.exe
"C:\Users\Admin\AppData\Local\Temp\4ec667a1d6a962070df636a75905e677.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3924
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Windows\khaxhakvggiqgmufrdyi\dllxgfazkrgqr.dll"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:3584
- C:\Windows\SysWOW64\cmd.exe
  cmd /c regedit.exe /s C:\Windows\reg.reg
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Windows\SysWOW64\regedit.exe
    regedit.exe /s C:\Windows\reg.reg
    3⤵
    - Installs/modifies Browser Helper Object
    - Runs .reg file with regedit
    PID:868

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\khaxhakvggiqgmufrdyi\dllxgfazkrgqr.dll

Filesize
2.5MB

MD5
3b0760077c188bb3ce6972169b1613c2

SHA1
cb3d50fe0a23a8bbd2558c6079b4b7d937fc4ea6

SHA256
0fd9eef17a1eda66f8eb74145f0935ea3a79d09335f5e8e035a822532a0258d0

SHA512
d7d71766cec49ec98291dff25cc4d57731ee90285ac122368f35817ed0fc5b36497dd5a21b4cbb09f3f4c14a155370c79899f2269c41bf1b8eb5c24d038f82ff

Download Submit
C:\Windows\khaxhakvggiqgmufrdyi\dllxgfazkrgqr.dll

Filesize
2.9MB

MD5
02c30384db5b2abaf986621b2f4014ec

SHA1
4440ab1d55215f6e45dedcf382ca5a21a8993e00

SHA256
6ef66a01ecd50e52e349d8d55ed5db97741c19086ada1440e1c0f63ad9ae7f37

SHA512
20dbfb9ca5e34ec42651d8a4daba98b2997d016972dded504b1199abab9c39d6f720dcfaa163972375614f90320b5587117806e8d6bb83fd7222e253c6acf8bc

Download Submit
C:\Windows\reg.reg

Filesize
185B

MD5
e7ec5d1748cbe59ab5ee02805c9530af

SHA1
cd5f89ea21cf72e5ce94d36aa00618bfd9c39a5c

SHA256
36845b1f85dbc963f36bded837503db0b551194d62fd00db431e1c1e4dd783c3

SHA512
f9af7930ec0021c72102eb4645dece32fb6bf0f7a054e2634ff26fa334ac79bf29ddcd69dbb5960897880da52693ce0fd9c69b4ccacdbb62dc9b5b91b6cdbe9c

Download Submit
memory/3924-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3924-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download