7def19525a3bf0067d6147b1bfd33b720bac523f0cd38c882a2d742ac36abd40

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-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
2500	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2420-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2420-6-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2420-13-0x0000000000400000-0x0000000000418000-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
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	regedit.exe
Set value (str)	\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 created	C:\Windows\userid.txt	4ec667a1d6a962070df636a75905e677.exe
File opened for modification	C:\Windows\ljaxhslbggowhquftfuo\dllchfazlrgwt.dll	4ec667a1d6a962070df636a75905e677.exe
File created	C:\Windows\reg.reg	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}	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}\TypeLib\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock	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\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	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\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ProxyStubClsid32	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\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\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\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32\ = "C:\\Windows\\ljaxhslbggowhquftfuo\\dllchfazlrgwt.dll"	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\QvodAdBlocker.QvodBlock\Clsid	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\0\win32\ = "C:\\Windows\\ljaxhslbggowhquftfuo\\dllchfazlrgwt.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0\HELPDIR\ = "C:\\Windows\\ljaxhslbggowhquftfuo"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\ = "_QvodBlock"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DEB9E5B3-3781-4A4C-80B8-216266A4B216}\TypeLib\Version = "1.0"	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\ = "{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\VERSION	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\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}	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\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\QvodAdBlocker.QvodBlock\ = "QvodAdBlocker.QvodBlock"	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\TypeLib\{70747953-81DF-4F4D-9C7A-DAAD839FAD3B}\1.0	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}	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}\ = "QvodAdBlocker.QvodBlock"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{61BD6924-D4FB-4BA2-B2EF-EBE5E203D122}\Programmable	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
2532	regedit.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2420	4ec667a1d6a962070df636a75905e677.exe
2420	4ec667a1d6a962070df636a75905e677.exe
2420	4ec667a1d6a962070df636a75905e677.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 2500	2420	4ec667a1d6a962070df636a75905e677.exe	33
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 2420 wrote to memory of 1668	2420	4ec667a1d6a962070df636a75905e677.exe	32
PID 1668 wrote to memory of 2532	1668	cmd.exe	30
PID 1668 wrote to memory of 2532	1668	cmd.exe	30
PID 1668 wrote to memory of 2532	1668	cmd.exe	30
PID 1668 wrote to memory of 2532	1668	cmd.exe	30
PID 1668 wrote to memory of 2532	1668	cmd.exe	30
PID 1668 wrote to memory of 2532	1668	cmd.exe	30
PID 1668 wrote to memory of 2532	1668	cmd.exe	30

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:2420
- C:\Windows\SysWOW64\cmd.exe
  cmd /c regedit.exe /s C:\Windows\reg.reg
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1668
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32.exe /s "C:\Windows\ljaxhslbggowhquftfuo\dllchfazlrgwt.dll"
  2⤵
  - Loads dropped DLL
  - Modifies registry class
  PID:2500

C:\Windows\SysWOW64\regedit.exe
regedit.exe /s C:\Windows\reg.reg
1⤵
- Installs/modifies Browser Helper Object
- Runs .reg file with regedit
PID:2532

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\ljaxhslbggowhquftfuo\dllchfazlrgwt.dll

Filesize
151KB

MD5
8e5c56083139736433464dd03664550c

SHA1
80b060d51c9166aaa150466f2b9cc37e3a33b490

SHA256
4e3e990a315d8445e8e5d730d09653ed0bc995fdfd32b1014dcaada392ced36a

SHA512
d5f09c72a4fefa602ce7b906bcfbeff79ecd10477e7162d0a0cad87cae9cfc00df187d6268e1508b5eaf3ad6ff1c0a6a592e6a78f10cadb0f1b71cb8df3e49c0

Download Submit
C:\Windows\reg.reg

Filesize
185B

MD5
e7ec5d1748cbe59ab5ee02805c9530af

SHA1
cd5f89ea21cf72e5ce94d36aa00618bfd9c39a5c

SHA256
36845b1f85dbc963f36bded837503db0b551194d62fd00db431e1c1e4dd783c3

SHA512
f9af7930ec0021c72102eb4645dece32fb6bf0f7a054e2634ff26fa334ac79bf29ddcd69dbb5960897880da52693ce0fd9c69b4ccacdbb62dc9b5b91b6cdbe9c

Download Submit
\Windows\ljaxhslbggowhquftfuo\dllchfazlrgwt.dll

Filesize
27KB

MD5
4f3e28774c073428c459b0df42660e61

SHA1
105b69c014dd4b46eb29e81534d09e326e2a22de

SHA256
37660ea6dcec08c8ddf756aa97ae7c9db917004aa1c31506aa2531002515eba9

SHA512
94c79c39c048a8d07b2a29434efa061202a324ee38ea72140c1539a292ebdf0a3fb64ff9a61033afdcb7e41d2f8d7395e1fd582de001b90c15f232678a5b4f27

Download Submit
memory/2420-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2420-3-0x0000000000020000-0x0000000000038000-memory.dmp

Filesize
96KB

Download
memory/2420-2-0x0000000000020000-0x0000000000038000-memory.dmp

Filesize
96KB

Download
memory/2420-6-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2420-13-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download