8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152

Analysis

max time kernel
113s
max time network
113s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10/11/2024, 04:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe
Size 382KB
Sample241110-e4c1gsspen
SHA256 8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152
MD5 de5072f7ebdf213bced91ee16c370d30
SHA1 3f83d41cf2eff016f7be5ba0a626beff73481105
SHA512 dccbd6d52eab24698522f063731e5f428dc9e1f347e9e7dba79f04cf905960219c5952011bdfcbe8d80d28cf3b922f437fe8e9e0e775e962cfccf82a43cccc9a
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19:UGmTau+mMC4ITJE8dfSJ/F1
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 6 IoCs

flow	pid	Process
4	2032	rundll32.exe
5	2032	rundll32.exe
9	2032	rundll32.exe
10	2032	rundll32.exe
11	2032	rundll32.exe
14	2032	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2996	zxokebz.exe

Executes dropped EXE 1 IoCs

pid	Process
2996	zxokebz.exe

Loads dropped DLL 6 IoCs

pid	Process
2164	cmd.exe
2164	cmd.exe
2032	rundll32.exe
2032	rundll32.exe
2032	rundll32.exe
2032	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\kwfgm\\svdeuq.dll\",InitEngine"	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)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\r:	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)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	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\kwfgm	zxokebz.exe
File created	\??\c:\Program Files\kwfgm\svdeuq.dll	zxokebz.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	zxokebz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
2328	PING.EXE
2164	cmd.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
2328	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2032	rundll32.exe
2032	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2368	8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe
2996	zxokebz.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2164	2368	8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe	30
PID 2368 wrote to memory of 2164	2368	8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe	30
PID 2368 wrote to memory of 2164	2368	8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe	30
PID 2368 wrote to memory of 2164	2368	8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe	30
PID 2164 wrote to memory of 2328	2164	cmd.exe	32
PID 2164 wrote to memory of 2328	2164	cmd.exe	32
PID 2164 wrote to memory of 2328	2164	cmd.exe	32
PID 2164 wrote to memory of 2328	2164	cmd.exe	32
PID 2164 wrote to memory of 2996	2164	cmd.exe	33
PID 2164 wrote to memory of 2996	2164	cmd.exe	33
PID 2164 wrote to memory of 2996	2164	cmd.exe	33
PID 2164 wrote to memory of 2996	2164	cmd.exe	33
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35
PID 2996 wrote to memory of 2032	2996	zxokebz.exe	35

C:\Users\Admin\AppData\Local\Temp\8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe
"C:\Users\Admin\AppData\Local\Temp\8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zxokebz.exe "C:\Users\Admin\AppData\Local\Temp\8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2164
- - 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:2328
- - C:\Users\Admin\AppData\Local\Temp\zxokebz.exe
    C:\Users\Admin\AppData\Local\Temp\\zxokebz.exe "C:\Users\Admin\AppData\Local\Temp\8321d89f9b1b29c59210cc6046cd32740b4b32a194133f399c18ff793138a152N.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:2996
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\kwfgm\svdeuq.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\zxokebz.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:2032

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

Replay Monitor

Loading Replay Monitor...

Downloads

zxokebz.exe

Path C:\Users\Admin\AppData\Local\Temp\zxokebz.exe
Size 383KB
SHA256 265f87819f1cf15b78c57b1026acfec7c2de49c5b70c8fbbb639b4cd3b3a96ae
MD5 b6b0b877ae5e1ac61ec496212ff66a0e
SHA1 caedae13f8d91803a19d0e0091865c6c5d1954ad
SHA512 851acd2f29c3143d490958b3db2b4f05a219f3ddd00914f2e8b4ebe535302b648150f9c716495ea623feda482d75348389245431aa74e961e4028a728cdd16b0
SSDEEP 6144:qKgGmTBsuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F19:UGmTau+mMC4ITJE8dfSJ/F1
MD5 SHA1 SHA512 SSDEEP

Submit Download

svdeuq.dll

Path \??\c:\Program Files\kwfgm\svdeuq.dll
Size 176KB
SHA256 a2e80b1380497cb4df0148a26f4d24c7184a4f106fc6d7c8adcfac41e3dcffa9
MD5 731bb7dbcd8edc1abd7a65fa850f8850
SHA1 61136212b1fe43b8cd8f9cb7936cdb59ba8601f5
SHA512 f614b56e4f290d11c806efbc8b2722a378e605706e1355794070254475586ac844b1214ab3bf5680fa0862958442ceed838a9d23765ea204c868fd429f2dc9d0
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocM:1Jv2tOItshGYdMnYYVjasKbOWSFofM
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2032-18-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2032-20-0x000000001005A000-0x000000001005B000-memory.dmp

Download

memory/2032-19-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2032-17-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2032-14-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2032-21-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2032-23-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2164-7-0x0000000000160000-0x00000000001F2000-memory.dmp

Download

memory/2164-8-0x0000000000160000-0x00000000001F2000-memory.dmp

Download

memory/2368-2-0x0000000000400000-0x0000000000492000-memory.dmp

Download

memory/2368-0-0x0000000000400000-0x0000000000492000-memory.dmp

Download

memory/2996-10-0x0000000000400000-0x0000000000492000-memory.dmp

Download