1e3fcd966e2d0b63e5a89dc82788da8225c85926dfdfd16c6712aea5b6a0ab28

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 10:39

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General

Target
searchshelp.dll
Size 372KB
Sample240529-mqe7pace72
SHA256 2e4ad6f9e1b72a9fdd341982d2c0726b5aafcc24629b1f7b45a8b773a36feb4a
MD5 9dc0d7da7e13d1b57d21241f756e4178
SHA1 b23692496fec97a1830d3bc0abfef2641ead81ef
SHA512 984b88307ff58ba15ed3cf26eed71cd0170f49d1a71bcb800d0f39a750521f694a083dec9fdb859e9962609a1746a71878994f0da6737ba68f6e065b5e042d2c
SSDEEP 6144:pYU2ZCSJXXwc55czraDN4bwzxUN0KLbp3CCeQavTBGmZFvU6:eVZCSJXhczryNuHaKLbpSCMvTEot
MD5 SHA1 SHA512 SSDEEP

Score

4^/10

persistence

Malware Config

Signatures

Registers COM server for autorun 1 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\searchshelpx64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\ = "QSearchhelp"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\InProcServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\searchshelpx64.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B5056B3B-2AE8-4157-944D-B1783EE0A03B}\InProcServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\QSearchhelp	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\Background\shellex\ContextMenuHandlers\QSearchhelp\ = "{B5056B3B-2AE8-4157-944D-B1783EE0A03B}"	regsvr32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 2088 wrote to memory of 1744	2088	regsvr32.exe	28
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 1744 wrote to memory of 2964	1744	regsvr32.exe	29
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30
PID 2964 wrote to memory of 1244	2964	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\searchshelp.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\searchshelp.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1744
- - C:\Windows\SysWOW64\regsvr32.exe
    regsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\searchshelpx64.dll"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2964
  - - C:\Windows\system32\regsvr32.exe
      /s "C:\Users\Admin\AppData\Local\Temp\searchshelpx64.dll"
      4⤵
      Registers COM server for autorun
      Modifies registry class
      PID:1244

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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