820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5

General

Target
jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
Size 72KB
Sample260925-wk7t7asgpc
SHA256 820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5
MD5 0e23a21c3bc2a4e56eabbc0ffc45eff7
SHA1 8e6f093935121c41b207524c3b08b2a82710a98b
SHA512 131937f3041b61035da7ce99d89ae44dd378ea96bd648ae3d71b8f9544968fa968e6bddfd4e52e3e7a3762a2138e099b5eb60f352e31020666337b41aeb31961
SSDEEP 1536:g/MjJoItdg+FcjEfHELwJXZ1r9hrWeqa8:gIxFfHE6zrPqa8
TLSH
T1AC732506E1C78456DC90C83C05D24FA949A6A0F62AB61EFE8FD68FF8702D15DD5372CA
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 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
File created	C:\Windows\SysWOW64\sysapp10.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe

Launches sc.exe 2 IoCs

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

pid	Process
5988	sc.exe
5860	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 928	2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe	89
PID 2104 wrote to memory of 5860	2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe	90
PID 2104 wrote to memory of 5988	2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe	91
PID 2104 wrote to memory of 5032	2104	jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe	93
PID 928 wrote to memory of 4236	928	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.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:2104
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4236
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5860
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5988
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790359199.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_820ddd1aa07ca297a885de4e10bd6955029b876f9e76ff16f011ef0c848561a5.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

1790359199.dat

Path C:\Users\Admin\AppData\Local\Temp\1790359199.dat
Size 40KB
SHA256 c5dbfe813a2b696ed31bd66db515c94c3c93e5d4356e1459fa5a374c2d047c12
MD5 debd6b67ae9265fb22a7754a1504463c
SHA1 874609a0f52b444a667eb446edf4c23bc7d997c5
SHA512 8b324f27967ac590a539a89ad680c8dbf3793fa6fc129921f0c7a35e7a2e7a998a588060352a37f55949d46f5ea41692b9f06212b837b04aca5b290f79100203
SSDEEP 768:eAaEySFq6Fre15xkYl0ETI79JTWU+hpa4WBURjrnlx:eADySFqvkYqV79JTOvlaURjrnL
TLSH
T181137D527A1B4562C1D3463172662BB5CBF868701F0A6269EB33C2971DB68C7C93A607
MD5 SHA1 SHA512 SSDEEP TLSH

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