c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6

General

Target

c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe
Size

199KB
MD5

48ff6a8b05278e4ddcad2945c3ea57c5
SHA1

8cd696977c88a47d649d4f71967d345dfe31751f
SHA256

c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6
SHA512

a76d4bcd9a3e0a5d99180187e11d893e417b13c05bc7661c628ab6aa5c7ff744144c87f0880f75a63d608a227bdc3ed62444ea1af54ad5abfa331973c17d33c0
SSDEEP

3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf

Score

7^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1656	ggssnih.exe

Executes dropped EXE 2 IoCs

pid	Process
1656	ggssnih.exe
2756	zkax.exe

Loads dropped DLL 7 IoCs

pid	Process
2352	cmd.exe
2352	cmd.exe
1656	ggssnih.exe
2756	zkax.exe
2756	zkax.exe
2756	zkax.exe
2756	zkax.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\kmuagebk\\zkax.exe \"c:\\Program Files\\kmuagebk\\zkaxj.dll\",Compliance"	zkax.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)	\??\z:	zkax.exe
File opened (read-only)	\??\x:	zkax.exe
File opened (read-only)	\??\g:	zkax.exe
File opened (read-only)	\??\o:	zkax.exe
File opened (read-only)	\??\p:	zkax.exe
File opened (read-only)	\??\s:	zkax.exe
File opened (read-only)	\??\v:	zkax.exe
File opened (read-only)	\??\y:	zkax.exe
File opened (read-only)	\??\a:	zkax.exe
File opened (read-only)	\??\l:	zkax.exe
File opened (read-only)	\??\m:	zkax.exe
File opened (read-only)	\??\n:	zkax.exe
File opened (read-only)	\??\r:	zkax.exe
File opened (read-only)	\??\t:	zkax.exe
File opened (read-only)	\??\u:	zkax.exe
File opened (read-only)	\??\e:	zkax.exe
File opened (read-only)	\??\h:	zkax.exe
File opened (read-only)	\??\i:	zkax.exe
File opened (read-only)	\??\j:	zkax.exe
File opened (read-only)	\??\k:	zkax.exe
File opened (read-only)	\??\q:	zkax.exe
File opened (read-only)	\??\w:	zkax.exe
File opened (read-only)	\??\b:	zkax.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	zkax.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\kmuagebk	ggssnih.exe
File created	\??\c:\Program Files\kmuagebk\zkaxj.dll	ggssnih.exe
File created	\??\c:\Program Files\kmuagebk\zkax.exe	ggssnih.exe
File opened for modification	\??\c:\Program Files\kmuagebk\zkax.exe	ggssnih.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	c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.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	ggssnih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zkax.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
2352	cmd.exe
1904	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	zkax.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	zkax.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1904	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2756	zkax.exe
2756	zkax.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	zkax.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2336	c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe
1656	ggssnih.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2352	2336	c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe	30
PID 2336 wrote to memory of 2352	2336	c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe	30
PID 2336 wrote to memory of 2352	2336	c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe	30
PID 2336 wrote to memory of 2352	2336	c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe	30
PID 2352 wrote to memory of 1904	2352	cmd.exe	32
PID 2352 wrote to memory of 1904	2352	cmd.exe	32
PID 2352 wrote to memory of 1904	2352	cmd.exe	32
PID 2352 wrote to memory of 1904	2352	cmd.exe	32
PID 2352 wrote to memory of 1656	2352	cmd.exe	33
PID 2352 wrote to memory of 1656	2352	cmd.exe	33
PID 2352 wrote to memory of 1656	2352	cmd.exe	33
PID 2352 wrote to memory of 1656	2352	cmd.exe	33
PID 1656 wrote to memory of 2756	1656	ggssnih.exe	34
PID 1656 wrote to memory of 2756	1656	ggssnih.exe	34
PID 1656 wrote to memory of 2756	1656	ggssnih.exe	34
PID 1656 wrote to memory of 2756	1656	ggssnih.exe	34

C:\Users\Admin\AppData\Local\Temp\c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe
"C:\Users\Admin\AppData\Local\Temp\c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ggssnih.exe "C:\Users\Admin\AppData\Local\Temp\c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2352
- - 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:1904
- - C:\Users\Admin\AppData\Local\Temp\ggssnih.exe
    C:\Users\Admin\AppData\Local\Temp\\ggssnih.exe "C:\Users\Admin\AppData\Local\Temp\c6519e50a9907bd3a6726923ed66e1beb17e6a3a4461ad61ed7a3b034c3645c6.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1656
  - - \??\c:\Program Files\kmuagebk\zkax.exe
      "c:\Program Files\kmuagebk\zkax.exe" "c:\Program Files\kmuagebk\zkaxj.dll",Compliance C:\Users\Admin\AppData\Local\Temp\ggssnih.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:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ggssnih.exe

Filesize
199KB

MD5
b1c6608615a935ed1b3a0bb4e4abcb0c

SHA1
7277975090ba8fd672288a8095897ba34e74f327

SHA256
ec453fee455b9c54beda378aa8c540478f959549fab6068b22a8dbe9fee6d803

SHA512
eaf844a09bbd83f0b43e274e64cb7d734c44b5f40904cbc878007be4c0d6a66f276883fae8e73049be8d6bd3094a7609c2ecc684f9c7f3b0c4b24ea05ba2d8fe

Download Submit
\??\c:\Program Files\kmuagebk\zkaxj.dll

Filesize
141KB

MD5
bb1add3843cc8ddd2de0a67602c1f904

SHA1
16d84eb28c30b7ae7283cf30baa46487626bb396

SHA256
64018e53d76c9fb834a5c6bb13434de3eeec542dc7f2ee2d2614437ddceae126

SHA512
54045ab0b3b64c55216686b3c7923cdb2721f3d6ca373d5441f6b05803cfcb03151677352a6742285883ece11ad3e6dec703b33414cd292042514c86d2d65f98

Download Submit
\Program Files\kmuagebk\zkax.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1656-12-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1656-11-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1656-10-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/1656-19-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2336-1-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2336-2-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2336-4-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2336-0-0x0000000000400000-0x000000000044901D-memory.dmp

Filesize
292KB

Download
memory/2352-7-0x0000000000120000-0x000000000016A000-memory.dmp

Filesize
296KB

Download
memory/2756-23-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2756-28-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2756-29-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2756-30-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/2756-32-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads