c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3

Analysis

max time kernel
142s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16/10/2024, 00:29

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General

Target
c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe
Size 198KB
Sample241016-as5txatfpg
SHA256 c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3
MD5 6ba203318b1787f7b4cd59c4caae3fab
SHA1 47217d03eacd6e5636f081129270a80cb64624b2
SHA512 647b8c8e7466e02568499d07171608aede7f80dc09f2c8238a2616c7022e42dfc7ec779f104bb7773b49099b86e6c8f36db553f5138452271f98ccfe3dbcf85b
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2936	xwrfazzpz.exe

Executes dropped EXE 2 IoCs

pid	Process
2936	xwrfazzpz.exe
1596	mqc.exe

Loads dropped DLL 1 IoCs

pid	Process
1596	mqc.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\qwcle\\mqc.exe \"c:\\Program Files\\qwcle\\mqcbj.dll\",Compliance"	mqc.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)	\??\g:	mqc.exe
File opened (read-only)	\??\i:	mqc.exe
File opened (read-only)	\??\m:	mqc.exe
File opened (read-only)	\??\n:	mqc.exe
File opened (read-only)	\??\o:	mqc.exe
File opened (read-only)	\??\t:	mqc.exe
File opened (read-only)	\??\a:	mqc.exe
File opened (read-only)	\??\b:	mqc.exe
File opened (read-only)	\??\l:	mqc.exe
File opened (read-only)	\??\p:	mqc.exe
File opened (read-only)	\??\s:	mqc.exe
File opened (read-only)	\??\w:	mqc.exe
File opened (read-only)	\??\x:	mqc.exe
File opened (read-only)	\??\z:	mqc.exe
File opened (read-only)	\??\h:	mqc.exe
File opened (read-only)	\??\j:	mqc.exe
File opened (read-only)	\??\v:	mqc.exe
File opened (read-only)	\??\y:	mqc.exe
File opened (read-only)	\??\e:	mqc.exe
File opened (read-only)	\??\u:	mqc.exe
File opened (read-only)	\??\r:	mqc.exe
File opened (read-only)	\??\k:	mqc.exe
File opened (read-only)	\??\q:	mqc.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	mqc.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\qwcle	xwrfazzpz.exe
File created	\??\c:\Program Files\qwcle\mqcbj.dll	xwrfazzpz.exe
File created	\??\c:\Program Files\qwcle\mqc.exe	xwrfazzpz.exe
File opened for modification	\??\c:\Program Files\qwcle\mqc.exe	xwrfazzpz.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	c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.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	xwrfazzpz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mqc.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
2020	PING.EXE
1444	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mqc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mqc.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2020	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1596	mqc.exe
1596	mqc.exe
1596	mqc.exe
1596	mqc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	mqc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
896	c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe
2936	xwrfazzpz.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 896 wrote to memory of 1444	896	c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe	85
PID 896 wrote to memory of 1444	896	c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe	85
PID 896 wrote to memory of 1444	896	c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe	85
PID 1444 wrote to memory of 2020	1444	cmd.exe	87
PID 1444 wrote to memory of 2020	1444	cmd.exe	87
PID 1444 wrote to memory of 2020	1444	cmd.exe	87
PID 1444 wrote to memory of 2936	1444	cmd.exe	90
PID 1444 wrote to memory of 2936	1444	cmd.exe	90
PID 1444 wrote to memory of 2936	1444	cmd.exe	90
PID 2936 wrote to memory of 1596	2936	xwrfazzpz.exe	91
PID 2936 wrote to memory of 1596	2936	xwrfazzpz.exe	91
PID 2936 wrote to memory of 1596	2936	xwrfazzpz.exe	91

C:\Users\Admin\AppData\Local\Temp\c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe
"C:\Users\Admin\AppData\Local\Temp\c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:896
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xwrfazzpz.exe "C:\Users\Admin\AppData\Local\Temp\c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1444
- - 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:2020
- - C:\Users\Admin\AppData\Local\Temp\xwrfazzpz.exe
    C:\Users\Admin\AppData\Local\Temp\\xwrfazzpz.exe "C:\Users\Admin\AppData\Local\Temp\c49949a7cf41f5f2fef10061d7d63dc88d91b9792cf9e28949ba1d2a885fe2a3.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:2936
  - - \??\c:\Program Files\qwcle\mqc.exe
      "c:\Program Files\qwcle\mqc.exe" "c:\Program Files\qwcle\mqcbj.dll",Compliance C:\Users\Admin\AppData\Local\Temp\xwrfazzpz.exe
      4⤵
      Executes dropped EXE
      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:1596

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

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Downloads

mqc.exe

Path C:\Program Files\qwcle\mqc.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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xwrfazzpz.exe

Path C:\Users\Admin\AppData\Local\Temp\xwrfazzpz.exe
Size 198KB
SHA256 7807942bf5097f1f4b69a9930e032cad1c12d143de8c7a182b7c53ab6e23481e
MD5 0c197fea820933fbf87243d19084f80e
SHA1 ff41247424fabb23dbb44fc51f1b9fff3e8b4f77
SHA512 b87bd5df46478662117970739bd407be3fb4ca3d14881c80f661c985e6d60d17d016d9dc2658e2566fe9f13e27077ee6d21da04e76a5785e9006b6f64f7db8a7
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTH:X2vnSwjaOcADw9cUeCOfh
MD5 SHA1 SHA512 SSDEEP

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mqcbj.dll

Path \??\c:\Program Files\qwcle\mqcbj.dll
Size 141KB
SHA256 28074ff953182622099a002cb927d3a922e319357a6cc128fa1c2d940d89ff64
MD5 33050bfc48cd3a9dac5a73a435271bbf
SHA1 1d752d71cef529743198c016a87aa63612939eff
SHA512 393353684f9e63f1ade2ef47819a469cb9cb079e5f51a569d242d1ca300d9b6fbd201b2786ca22ecfcebbd91c4332fe42076447e04c1e2fd38c46b47157cdd30
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4l/:RGMmfToTJY6zpSyvkGSn1tl/
MD5 SHA1 SHA512 SSDEEP

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memory/896-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/896-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/896-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/896-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/1596-19-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/1596-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/1596-23-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/2936-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2936-9-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/2936-15-0x0000000000400000-0x000000000044901D-memory.dmp

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