050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663dd

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/11/2024, 19:48

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General

Target
050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe
Size 187KB
Sample241111-yjbrgavepd
SHA256 050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663dd
MD5 e31d62a52e2bc61e8b61e392f55e7e80
SHA1 f1e7579530e71825f17d09f881aad6110d0a260f
SHA512 3508b88ef05194fd0c67d0db74eb80a707e04b4292a8c3c1e94eab4d680e08f6be9da2601f26d7f9eed20953ec6ea881f79fdc89ffdb28541ec3a97d2b79e8cc
SSDEEP 3072:FuOFvvJwfNJxrt0YVDXz+uUsI2E9yRdl6PNEh2aOUQS7bhfNH6i:FfvvJa5t0ez+u9I6SV+ySfhf
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 8 IoCs

flow	pid	Process
13	1328	rundll32.exe
19	1328	rundll32.exe
20	1328	rundll32.exe
21	1328	rundll32.exe
35	1328	rundll32.exe
36	1328	rundll32.exe
40	1328	rundll32.exe
46	1328	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2676	gizcr.exe

Executes dropped EXE 1 IoCs

pid	Process
2676	gizcr.exe

Loads dropped DLL 1 IoCs

pid	Process
1328	rundll32.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sDisk = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\ggsmmv\\fqiqs.dll\",SSL_clear"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ggsmmv	gizcr.exe
File created	\??\c:\Program Files\ggsmmv\fqiqs.dll	gizcr.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gizcr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4216	cmd.exe
4388	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4388	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe
1328	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1328	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1768	050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe
2676	gizcr.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 4216	1768	050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe	84
PID 1768 wrote to memory of 4216	1768	050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe	84
PID 1768 wrote to memory of 4216	1768	050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe	84
PID 4216 wrote to memory of 4388	4216	cmd.exe	86
PID 4216 wrote to memory of 4388	4216	cmd.exe	86
PID 4216 wrote to memory of 4388	4216	cmd.exe	86
PID 4216 wrote to memory of 2676	4216	cmd.exe	89
PID 4216 wrote to memory of 2676	4216	cmd.exe	89
PID 4216 wrote to memory of 2676	4216	cmd.exe	89
PID 2676 wrote to memory of 1328	2676	gizcr.exe	90
PID 2676 wrote to memory of 1328	2676	gizcr.exe	90
PID 2676 wrote to memory of 1328	2676	gizcr.exe	90

C:\Users\Admin\AppData\Local\Temp\050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe
"C:\Users\Admin\AppData\Local\Temp\050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gizcr.exe "C:\Users\Admin\AppData\Local\Temp\050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4388
- - C:\Users\Admin\AppData\Local\Temp\gizcr.exe
    C:\Users\Admin\AppData\Local\Temp\\gizcr.exe "C:\Users\Admin\AppData\Local\Temp\050e7841567c486e6286d8edd343ddce1b2a07a3a3c3d653cdec8b93736663ddN.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2676
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\ggsmmv\fqiqs.dll",SSL_clear C:\Users\Admin\AppData\Local\Temp\gizcr.exe
      4⤵
      Blocklisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1328

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

gizcr.exe

Path C:\Users\Admin\AppData\Local\Temp\gizcr.exe
Size 187KB
SHA256 5b6c8d6075420ede4c8b9dd5ed359ab3eaa603972344aeb02d156728d536349f
MD5 67f615ba33c1acbc1753ad76e1ddce61
SHA1 5c0390bba0da43ec05a950340eace8b2b23c769d
SHA512 e90eae7fef0a96506a67235ace527ad4dc6f9c3dcfaf0fb3dda7ff2fbf7a22ed607ec1874a53dedd29bd7e3c2e4ad0e8949f1db1153ec792a563061927d8f51f
SSDEEP 3072:FuOFvvJwfNJxrt0YVDXz+uUsI2E9yRdl6PNEh2aOUQS7bhfNH6ih:FfvvJa5t0ez+u9I6SV+ySfhfP
MD5 SHA1 SHA512 SSDEEP

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fqiqs.dll

Path \??\c:\Program Files\ggsmmv\fqiqs.dll
Size 152KB
SHA256 397dad35c036f7180bce0c239b818d623231d500409553bccc4bafb21b25a14e
MD5 02914aaa0ab1412e3db2b9e627feeda4
SHA1 42cbfa61ce1a76d6c023c5325d406ddbbc4fb9f9
SHA512 7880ab5cf8c975f16f9b23acbce64376a00a9466ce04084012be21bbb31858e73a96cac782aebf5d9607cf45f6ce9eb44c533e110749ac12eda0babcb15dda67
SSDEEP 3072:+Xyxum6XqmeJtY/VSSmZ1QAT25omGiDTKWb95C51jnWb1VOZ47vm2E+RLxwJg:+ixr5bVSmfQg25zvDTfb95ajs1VO67h
MD5 SHA1 SHA512 SSDEEP

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memory/1328-12-0x0000000010000000-0x0000000010059000-memory.dmp

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memory/1328-14-0x0000000010000000-0x0000000010059000-memory.dmp

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memory/1328-13-0x0000000010037000-0x0000000010038000-memory.dmp

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memory/1328-16-0x0000000010000000-0x0000000010059000-memory.dmp

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memory/1768-0-0x0000000000400000-0x0000000000435024-memory.dmp

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memory/1768-3-0x0000000000400000-0x0000000000435024-memory.dmp

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memory/2676-9-0x0000000000400000-0x0000000000435024-memory.dmp

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