ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d

General

Target
jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
Size 64KB
Sample260925-wlsrnawyft
SHA256 ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d
MD5 f225c4393c56334d71262df3834f650d
SHA1 bfc2f7f4dbf868c704a37106c470628d07534cc1
SHA512 e74e816a905fc78cbd8f214a007332345d975f249f3362d3291389969c8d15190b25855d6412deaf19994c082020069c28d7c60fee6b51242623c5c65f40f766
SSDEEP 1536:XzQUo0BnQtHEuzv2z4TiSfcPr7IQDHkTpdOXjd:XU0ZQtRv5M8Y2dOXjd
TLSH
T145537A4AD5C70453DC60CC3C01E28BB9456621F22A362EFE9FC49FB8342E55AD6372DA
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
6072	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
6072	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_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
File created	C:\Windows\SysWOW64\sysapp37.dll	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe

Launches sc.exe 2 IoCs

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

pid	Process
3700	sc.exe
1840	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	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 3300	3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe	90
PID 3740 wrote to memory of 1840	3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe	91
PID 3740 wrote to memory of 3700	3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe	92
PID 3740 wrote to memory of 6072	3740	jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe	93
PID 3300 wrote to memory of 4292	3300	net.exe	97

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.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:3740
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3300
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4292
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3700
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790359263.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_ae78ec748d00d4c7f49d8b5b5a3e8ce0150693c1f1da8a8345612c324e12ee3d.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:6072

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

1790359263.dat

Path C:\Users\Admin\AppData\Local\Temp\1790359263.dat
Size 33KB
SHA256 8e6dff6780e5c0908d75c16a6ca7b1b17edc8bcc51036f3b2f0ae3d30d10c810
MD5 361b9fd6b897adaa947474aa510a3462
SHA1 44390684b6b6ff1605b97736c3a5fe9d93f79ba6
SHA512 5c43d2db6b788af43d3d8a2daaa5d3ffe3dbb37edf4f2ce426f019ae522f55f86e3213024a71c0e02af9df7fd71c64b414a2cb6e40eefa1cbbfbdcbab5a5607f
SSDEEP 768:5TosURUkZ9hNbTQ1QjZe8Decl771xkeNiOWRnqL:5TosUSg/ZtKcx71xUdRnK
TLSH
T127E27C227A4749B2E1E3423076842BB58BF868301E0361EADF72CB5B1DB56C7DE75207
MD5 SHA1 SHA512 SSDEEP TLSH

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