4faadb8a92a2785f27b3965f38a7efb2478afa1bf47267af459fc6116ea80aff

General

Target

ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
Size

36KB
MD5

ee8cf8f9666059043b0bb49280dc9a9c
SHA1

87b94e0f1a4637815cf1ceb5ffa56d1a5cd5b0d6
SHA256

4faadb8a92a2785f27b3965f38a7efb2478afa1bf47267af459fc6116ea80aff
SHA512

7f382fe82c0cbe498c3d1ac0c21308f35b7e198d13003b94b9d50a38aa5c3288a2fb86796d0c4dd47d541e21534ecd2a6056bcdcab50c7e214bfc653b4b3cfa4
SSDEEP

768:j9SL0aZNB0pOAL1xZ8gxXN6WdcwG/+u3bEAW44/Q9pB:j20a10Q+LZ7WccwGm0bEtfQ9pB

Score

10^/10

discovery evasion execution upx

Malware Config

Signatures

Disables service(s) 3 TTPs
evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
4140	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4140	rundll32.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3188-0-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral2/memory/3188-28-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\YUmidimap.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\comres.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\YUksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\midimap.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\YUcomres.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\comres.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sysapp8.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files\360\360se3\ksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\ksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\comres.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\360\360se3\midimap.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\360\360se3\comres.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\SogouExplorer\ksuser.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\SogouExplorer\midimap.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\SogouExplorer\comres.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\midimap.dll	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe

Launches sc.exe 2 IoCs

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

pid	Process
1624	sc.exe
2888	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	rundll32.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 2660	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	82
PID 3188 wrote to memory of 2660	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	82
PID 3188 wrote to memory of 2660	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	82
PID 3188 wrote to memory of 1624	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	83
PID 3188 wrote to memory of 1624	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	83
PID 3188 wrote to memory of 1624	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	83
PID 3188 wrote to memory of 2888	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	84
PID 3188 wrote to memory of 2888	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	84
PID 3188 wrote to memory of 2888	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	84
PID 3188 wrote to memory of 4140	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	88
PID 3188 wrote to memory of 4140	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	88
PID 3188 wrote to memory of 4140	3188	ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe	88
PID 2660 wrote to memory of 3812	2660	net.exe	89
PID 2660 wrote to memory of 3812	2660	net.exe	89
PID 2660 wrote to memory of 3812	2660	net.exe	89

C:\Users\Admin\AppData\Local\Temp\ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee8cf8f9666059043b0bb49280dc9a9c_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3188
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3812
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1726871417.dat, ServerMain c:\users\admin\appdata\local\temp\ee8cf8f9666059043b0bb49280dc9a9c_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4140

Network

MITRE ATT&CK Enterprise v15

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

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\1726871417.dat

Filesize
37KB

MD5
320127702bdb60486d9fcaccc9ae0bea

SHA1
44a84f0542527ecc85799fad8954ec7f57ff6e59

SHA256
54dc4aac0707577849ef41bb87536876a23e86b2dd747b4853f0dd4711a5c5ca

SHA512
6c660a8c875082fede89ec7f38f76e1c453a8332accbc5d63ccdbe5752cbb0eebb0e920ba187ded0ecdcf821c35f5d3a5aee67503c513238e28c75033d9fbced

Download Submit
memory/3188-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3188-28-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

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