628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860

General

Target

628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe
Size

605KB
MD5

99043cb5f6b8cd37fe0c0f574cde83bb
SHA1

8326ad535b61789a5fcf8ef2af476fe5a05a59b6
SHA256

628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860
SHA512

a2babb3c3cd7162903d40758beb6b80a8c9f5da1540cc62cbbd73d111df609cb3589000f79dfc6851d6a3c2c0f4066cf905ff32408a50384e876d64deb9f79cb
SSDEEP

12288:EVRTE3het1yJh2HduH7GqjTyiVRTE3het1yJh2HduH7GqjTy:IX1AwHsH7hTyOX1AwHsH7hTy

Score

7^/10

bootkit discovery persistence spyware stealer

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3896	tzkgz.exe

Executes dropped EXE 2 IoCs

pid	Process
3896	tzkgz.exe
2432	jhk.exe

Loads dropped DLL 1 IoCs

pid	Process
2432	jhk.exe

Reads user/profile data of web browsers 2 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

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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SHR = "c:\\Program Files\\xnduv\\jhk.exe \"c:\\Program Files\\xnduv\\jhkeg.dll\",Scheduler"	jhk.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)	\??\v:	jhk.exe
File opened (read-only)	\??\y:	jhk.exe
File opened (read-only)	\??\o:	jhk.exe
File opened (read-only)	\??\s:	jhk.exe
File opened (read-only)	\??\h:	jhk.exe
File opened (read-only)	\??\i:	jhk.exe
File opened (read-only)	\??\m:	jhk.exe
File opened (read-only)	\??\p:	jhk.exe
File opened (read-only)	\??\q:	jhk.exe
File opened (read-only)	\??\x:	jhk.exe
File opened (read-only)	\??\a:	jhk.exe
File opened (read-only)	\??\b:	jhk.exe
File opened (read-only)	\??\r:	jhk.exe
File opened (read-only)	\??\u:	jhk.exe
File opened (read-only)	\??\w:	jhk.exe
File opened (read-only)	\??\z:	jhk.exe
File opened (read-only)	\??\j:	jhk.exe
File opened (read-only)	\??\k:	jhk.exe
File opened (read-only)	\??\l:	jhk.exe
File opened (read-only)	\??\n:	jhk.exe
File opened (read-only)	\??\t:	jhk.exe
File opened (read-only)	\??\e:	jhk.exe
File opened (read-only)	\??\g:	jhk.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	jhk.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\xnduv	tzkgz.exe
File created	\??\c:\Program Files\xnduv\jhkeg.dll	tzkgz.exe
File created	\??\c:\Program Files\xnduv\jhk.exe	tzkgz.exe
File opened for modification	\??\c:\Program Files\xnduv\jhk.exe	tzkgz.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tzkgz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jhk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2508	cmd.exe
4500	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	jhk.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	jhk.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4500	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2432	jhk.exe
2432	jhk.exe
2432	jhk.exe
2432	jhk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	jhk.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3612	628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe
3896	tzkgz.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 2508	3612	628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe	85
PID 3612 wrote to memory of 2508	3612	628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe	85
PID 3612 wrote to memory of 2508	3612	628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe	85
PID 2508 wrote to memory of 4500	2508	cmd.exe	87
PID 2508 wrote to memory of 4500	2508	cmd.exe	87
PID 2508 wrote to memory of 4500	2508	cmd.exe	87
PID 2508 wrote to memory of 3896	2508	cmd.exe	89
PID 2508 wrote to memory of 3896	2508	cmd.exe	89
PID 2508 wrote to memory of 3896	2508	cmd.exe	89
PID 3896 wrote to memory of 2432	3896	tzkgz.exe	91
PID 3896 wrote to memory of 2432	3896	tzkgz.exe	91
PID 3896 wrote to memory of 2432	3896	tzkgz.exe	91

C:\Users\Admin\AppData\Local\Temp\628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe
"C:\Users\Admin\AppData\Local\Temp\628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\tzkgz.exe "C:\Users\Admin\AppData\Local\Temp\628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2508
- - 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:4500
- - C:\Users\Admin\AppData\Local\Temp\tzkgz.exe
    C:\Users\Admin\AppData\Local\Temp\\tzkgz.exe "C:\Users\Admin\AppData\Local\Temp\628378aa581d91d6c3cfc8f00ed72742085b8e1342046eb84ba48a1444311860.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:3896
  - - \??\c:\Program Files\xnduv\jhk.exe
      "c:\Program Files\xnduv\jhk.exe" "c:\Program Files\xnduv\jhkeg.dll",Scheduler C:\Users\Admin\AppData\Local\Temp\tzkgz.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:2432

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

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\xnduv\jhk.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
C:\Users\Admin\AppData\Local\Temp\tzkgz.exe

Filesize
606KB

MD5
998aea8814b6ef2a7044151ab7bf509d

SHA1
e979304c5cfdcebe170add6e75c534189ec83778

SHA256
bf2af9909dd4b7d703b2a897a15f9c811a00725014032a80b37c46eb7ec5471e

SHA512
f56e886cf7a2014a84a0075bb00db1d8f99515afc4231d05e77abecf1288c96d0677eb7ccf908993603273dba27d93806419f1699c49a56e1d6deb51ffd4df52

Download Submit
\??\c:\Program Files\xnduv\jhkeg.dll

Filesize
184KB

MD5
002bd510afd4f6ea5521c95e24ec03bc

SHA1
45c611e27e87a30cc2fcfffd8d1a5cc94400fae9

SHA256
99e220642e5384bfc9afc9b3184ff1a9b0205fc5b259a10097f24c6aef9cb50a

SHA512
9b94a6526b63a4ac1ab6514f9ddf6576fd015fe054235a4b8107a22b2d3e01ce86883b6f869a251ffd44b435c06381448e2519382202b8e0dc4b14a11fef9d38

Download Submit
memory/2432-11-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2432-12-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2432-15-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads