bdc24b8dad31f5ae2d3e9d70a54024b7283d58ffa6ab1aab3a8bfbbdd04ffab3

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 04:19

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General

Target

b67dba8f7cd90d7eaeaf2aabf1ecced6.exe
Size

76KB
MD5

b67dba8f7cd90d7eaeaf2aabf1ecced6
SHA1

a1d7c48424f8315658108afbb0a96b89077520a5
SHA256

bdc24b8dad31f5ae2d3e9d70a54024b7283d58ffa6ab1aab3a8bfbbdd04ffab3
SHA512

25c8217c4ef76d5d8182012fe0129f21c3ba85520929a108a3e1bd0975fcc2f9deb6e0fc003a72d10636f51e158e27149dd5f95b34163f7fbc9ed73035dee9a2
SSDEEP

768:PKTTo/j1nZ1hSvyqnSE72WzpNVdTToeJrBDsX9MifM2:PKTToL1nZ1Uv4WzXVdTToesdfM2

Score

7^/10

adware stealer

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2364	regsvr32.exe

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\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\ = "??????"	regedit.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\ao\dlledora.dll	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\userid.txt	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe
File created	C:\Windows\reg.reg	b67dba8f7cd90d7eaeaf2aabf1ecced6.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\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\VERSION\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\0\win32\ = "C:\\Program Files\\ao\\dlledora.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\ = "QvodAdBlocker"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ = "_QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\Clsid\ = "{A159F450-51A6-4CCA-A5BF-011C41A52FF9}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ = "QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\TypeLib\ = "{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ = "_QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\VERSION	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\HELPDIR\ = "C:\\Program Files\\ao"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\TypeLib\ = "{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ProxyStubClsid\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\TypeLib\ = "{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\ProgID\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ProxyStubClsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{99586BE3-89F9-40BE-AA1A-D2D8492D6F47}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{69CB71DE-CB9D-42E5-B097-3B1BE621643B}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A159F450-51A6-4CCA-A5BF-011C41A52FF9}\InprocServer32\ = "C:\\Program Files\\ao\\dlledora.dll"	regsvr32.exe

Runs .reg file with regedit 1 IoCs

pid	Process
4292	regedit.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe
1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe
1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 2364	1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe	108
PID 1988 wrote to memory of 2364	1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe	108
PID 1988 wrote to memory of 2364	1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe	108
PID 1988 wrote to memory of 4584	1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe	109
PID 1988 wrote to memory of 4584	1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe	109
PID 1988 wrote to memory of 4584	1988	b67dba8f7cd90d7eaeaf2aabf1ecced6.exe	109
PID 4584 wrote to memory of 4292	4584	cmd.exe	111
PID 4584 wrote to memory of 4292	4584	cmd.exe	111
PID 4584 wrote to memory of 4292	4584	cmd.exe	111

C:\Users\Admin\AppData\Local\Temp\b67dba8f7cd90d7eaeaf2aabf1ecced6.exe
"C:\Users\Admin\AppData\Local\Temp\b67dba8f7cd90d7eaeaf2aabf1ecced6.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Program Files\ao\dlledora.dll"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:2364
- C:\Windows\SysWOW64\cmd.exe
  cmd /c regedit.exe /s C:\Windows\reg.reg
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4584
- - C:\Windows\SysWOW64\regedit.exe
    regedit.exe /s C:\Windows\reg.reg
    3⤵
    - Installs/modifies Browser Helper Object
    - Runs .reg file with regedit
    PID:4292

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1404 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8
1⤵
PID:4412

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:\Program Files\ao\dlledora.dll

Filesize
32KB

MD5
237b3d7556bc6e467ac17a79ff04305f

SHA1
d5d0febb33aa9028024655a88d2a7c9bc2f52949

SHA256
79adaad1033772a85bbe73331ae5f554220c11b1f2fa571a2eea184a2eb16cfe

SHA512
5519c5e66ed48f3261d3d468b987d1363529a5007d11b95f1559830a0967b30a16859cfcda2d07f2fe797cbe5523b6959c5623551cde24b96740f4b3de79f87d

Download Submit
C:\Windows\reg.reg

Filesize
185B

MD5
cfbb28c929196d73bc58a6039b80a0a2

SHA1
a954e80d61025b4944222955e9bc4e3f30cc849a

SHA256
48cebe9cc7acd1f8c5402944c0fa82390f0180d74c24dcb5bb0e99393066a71e

SHA512
5f9d18f266ade5e5de53ac89a9dde25af6d7a822ba8a6842b6de6c7568830617b03c1f2ece80e3111942454c9f19289d44d8fc5bf9d63067e512f8112ec4684d

Download Submit