4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a

General

Target
jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
Size 53KB
Sample260925-2vvkhay13q
SHA256 4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a
MD5 62e36a8f0309127ef0165a4aab0a0be0
SHA1 a4d73ece95a4fe39611bc63cc7d0bc7302afc68d
SHA512 a1c9f658fc584f4fcc381b4a43b9d77d972af1b92fdca550b1c726032d90b781e320045c782256afe62a6342c74c816b8b0d1d57655e5980aebdb49bb3e49552
SSDEEP 1536:LfGQl6HxkdwOISHXqnG5gptbCgd6NLMOr:L+7ANI7ZDb9YdMOr
TLSH
T1E533694B4288C4E1FBAF9173013741B5C16272961EB8468B8E44DAFC0BFAD71962FC8D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution

Malware Config

Signatures

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
5032	rundll32.exe

Disables service(s) 3 TTPs
defense_evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002

Loads dropped DLL 1 IoCs

pid	Process
5032	rundll32.exe

Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Drops file in System32 directory 10 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\YUcomres.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\comres.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\dllcache\comres.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
File created	C:\Windows\SysWOW64\sysyu18.dll	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
548	sc.exe
3360	sc.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 4344	960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe	89
PID 960 wrote to memory of 3360	960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe	90
PID 960 wrote to memory of 548	960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe	91
PID 960 wrote to memory of 5032	960	jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe	92
PID 4344 wrote to memory of 4392	4344	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:960
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4344
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4392
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3360
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\fBZZUjIQ47arXuAd.dat, ServerMain 0c:\users\admin\appdata\local\temp\jaffacakes118_4d68a4ea0ae4db74ed6e8af94793535e7d08d285dc5c341fc6fe10f780ebb25a.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:5032

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Indicator Removal

1

T1070

File Deletion

1

T1070.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

2

T1489

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Downloads

fBZZUjIQ47arXuAd.dat

Path C:\Users\Admin\AppData\Local\Temp\fBZZUjIQ47arXuAd.dat
Size 3.2MB
SHA256 0f37a53e9d830d9a6c2af2e2f54844ebb8ec77bae926690e0de857a599cf44f9
MD5 c10eacc41ea03fa22d55ba419869d469
SHA1 e4e1cd6ad6de880531fc3478d0e344b5a4765a16
SHA512 42b2b8c7f66b6f347bec44570fbc5383b646f29476964edfdc189c5494d59d31349aec0f74937fec10753a564cde66edabc947bf448990882e973ef8e3edff8d
SSDEEP 24576:6OWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWOWZ:m
TLSH
T16BE55C013A5388A3D35F0334A5413B7ADBF8BD305B86A666D713A6C75D609D7EB3A203
MD5 SHA1 SHA512 SSDEEP TLSH

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