6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94

General

Target
jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
Size 64KB
Sample260924-mefdbaselh
SHA256 6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94
MD5 34e2afeff28a3022101b0aa4c6185aa7
SHA1 fd9d98e1416cc2f2a8775d923c54dc5c2c230886
SHA512 3f91a302d6ad82ed4addb4e53b43c196ba3211b70f4163ebbe6e913e624ced52b44863cc29d9e7ca58d28ba580d5967144a1e96a30b5e2ba459f213c6b50a129
SSDEEP 768:IQ60q+2Cld5GFuydu7iAzXvbhwp34ehdfcTqQ0mOCdauWBu4NZi+S:ISiNO7iIDxSfcTqQ9DdauI/Z6
TLSH
T16E535846D6CB4463DC60C83801E25BB9442665F6267A0EFE9FC18FFA342E59DD6331CA
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
5196	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
5196	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_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\msimg32.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
File created	C:\Windows\SysWOW64\sysapp36.dll	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe

Launches sc.exe 2 IoCs

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

pid	Process
3196	sc.exe
3428	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_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.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 6 IoCs

pid	Process
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 924	3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe	89
PID 3684 wrote to memory of 3428	3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe	90
PID 3684 wrote to memory of 3196	3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe	91
PID 3684 wrote to memory of 5196	3684	jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe	93
PID 924 wrote to memory of 3692	924	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.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:3684
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:924
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3692
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3428
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3196
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790245349.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_6d3dc8530a96614f0d400721b3945d4bbc358e8a447a355f54a2702db9ec0a94.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:5196

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

1790245349.dat

Path C:\Users\Admin\AppData\Local\Temp\1790245349.dat
Size 34KB
SHA256 94f01192979bf2482359e7f4fdd77fab2f4cd1f2db790536bc6f9f7701e08165
MD5 7e1df3fc5f86cdd7e46b5c089d5ef3eb
SHA1 6fb8ea72a433a633f9902e95854e2fdd97411517
SHA512 8ef0ff477954bebfec568621e7a3589bb6c0484ebdaa2dba645c8a14c300a9466f64313dcd556f3f7ee6bf103ecb11e8fa2b51687b2a508282ca7775c4169e47
SSDEEP 768:Nu2q+8kKaRvbYCoFeqfuV767cS0NqOGieRmf+G:o2Z8eFboFeqG7CcSRhR8
TLSH
T1CAF27D1276574572E1D3833132922FBA9FF828301E02116ADFB2CA6B2D755C7DE3A207
MD5 SHA1 SHA512 SSDEEP TLSH

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