4ac92af14bcbc9e449a5ae9daf547c72639eb54557a22749dd21459183c592a3

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 08:54

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General

Target

13d43549374a9aa46cef63d47afa77de.exe
Size

164KB
MD5

13d43549374a9aa46cef63d47afa77de
SHA1

b6fb21326ab17a2323bf4947f9db201b3c015232
SHA256

4ac92af14bcbc9e449a5ae9daf547c72639eb54557a22749dd21459183c592a3
SHA512

92c83251dacd0d3dafdc8cedc338b0bc3df61b04666144ed07cef37e7f5bc9c408419e6a129a170bfeea31e13e722e022c602c7fdf1b48339bac1627ec17d589
SSDEEP

3072:FQyjlVKiaGdorua81PN9DTMEz4Di785f4vrdrp8dnGn5Gx:FQyhWKa8zFTJz4+oJ4vBrUnGA

Score

8^/10

adware aspackv2 persistence stealer upx

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\489e1d47.sys	13d43549374a9aa46cef63d47afa77de.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\489e1d47\ImagePath = "\\??\\C:\\Windows\\system32\\drivers\\489e1d47.sys"	13d43549374a9aa46cef63d47afa77de.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000c000000013ac5-13.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2564	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2176	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2792-3-0x00000000004A0000-0x0000000000520000-memory.dmp	upx
behavioral1/memory/2792-2-0x00000000004A0000-0x0000000000520000-memory.dmp	upx
behavioral1/memory/2792-1-0x00000000004A0000-0x0000000000520000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 6 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF}	13d43549374a9aa46cef63d47afa77de.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}	13d43549374a9aa46cef63d47afa77de.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3}	13d43549374a9aa46cef63d47afa77de.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	13d43549374a9aa46cef63d47afa77de.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CE49C762-160C-443A-B1D1-59DE2AE77B65}	regsvr32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wshtcpip.dll	13d43549374a9aa46cef63d47afa77de.exe
File opened for modification	C:\Windows\SysWOW64\V3LFunc.dll	13d43549374a9aa46cef63d47afa77de.exe
File created	C:\Windows\SysWOW64\V3LFunc.dll	13d43549374a9aa46cef63d47afa77de.exe
File created	C:\Windows\SysWOW64\wshtcpnp.dll	13d43549374a9aa46cef63d47afa77de.exe
File opened for modification	C:\Windows\SysWOW64\wshtcpnp.dll	13d43549374a9aa46cef63d47afa77de.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\TypeLib\ = "{CE49C768-160C-443A-B1D1-59DE2AE77B65}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\HOOK_ID	13d43549374a9aa46cef63d47afa77de.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\SYS_DLL	13d43549374a9aa46cef63d47afa77de.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\HELPDIR\ = "C:\\Windows\\SysWow64\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\SYS_DLL\name = "Ruf.dll"	13d43549374a9aa46cef63d47afa77de.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\TypeLib\ = "{CE49C768-160C-443A-B1D1-59DE2AE77B65}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{CE49C762-160C-443A-B1D1-59DE2AE77B65}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\V3LFunc.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\ = "IIEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\HOOK_ID\name = "13d43549374a9aa46cef63d47afa77de.exe"	13d43549374a9aa46cef63d47afa77de.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CE49C762-160C-443A-B1D1-59DE2AE77B65}\InprocServer32\ = "C:\\Windows\\SysWow64\\V3LFunc.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{CE49C768-160C-443A-B1D1-59DE2AE77B65}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{CE49C761-160C-443A-B1D1-59DE2AE77B65}\TypeLib\Version = "1.0"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2792	13d43549374a9aa46cef63d47afa77de.exe
2176	regsvr32.exe
2176	regsvr32.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
484	Process not Found
2792	13d43549374a9aa46cef63d47afa77de.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	13d43549374a9aa46cef63d47afa77de.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2176	2792	13d43549374a9aa46cef63d47afa77de.exe	22
PID 2792 wrote to memory of 2564	2792	13d43549374a9aa46cef63d47afa77de.exe	31
PID 2792 wrote to memory of 2564	2792	13d43549374a9aa46cef63d47afa77de.exe	31
PID 2792 wrote to memory of 2564	2792	13d43549374a9aa46cef63d47afa77de.exe	31
PID 2792 wrote to memory of 2564	2792	13d43549374a9aa46cef63d47afa77de.exe	31

C:\Users\Admin\AppData\Local\Temp\13d43549374a9aa46cef63d47afa77de.exe
"C:\Users\Admin\AppData\Local\Temp\13d43549374a9aa46cef63d47afa77de.exe"
1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\regsvr32.exe
  C:\Windows\system32\regsvr32.exe /s /c C:\Windows\system32\V3LFunc.dll
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:2176
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\core.bat
  2⤵
  - Deletes itself
  PID:2564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2792-0-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2792-3-0x00000000004A0000-0x0000000000520000-memory.dmp

Filesize
512KB

Download
memory/2792-2-0x00000000004A0000-0x0000000000520000-memory.dmp

Filesize
512KB

Download
memory/2792-1-0x00000000004A0000-0x0000000000520000-memory.dmp

Filesize
512KB

Download
memory/2792-22-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download