7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a

General

Target
jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
Size 64KB
Sample260925-19raysyw4n
SHA256 7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a
MD5 92b91875201e2fbdb717f582bfce734a
SHA1 04837e11077a270402d5af8b96583ade73a53720
SHA512 a65dae38e56b35c0433be0affddca9617a8d4c02dac1cd12e9d4cd089fca1727a4c3033d5338b8277d3abb8c02f12509948f7f32e025fdb5871301a223d2c803
SSDEEP 1536:IekcWE67vVI07loUL2shVFSPQVRAMRuXn:IewTL8PkRzoXn
TLSH
T10853485EA689CDD2ED0745B0025382B8C5B3B21B16DA59AAEECDCCCC4739C157D34ECA
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
3908	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
3908	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 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\msimg32.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File created	C:\Windows\SysWOW64\sysapp1.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
File opened for modification	C:\Windows\SysWOW64\yuksuser.dll	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe

Launches sc.exe 2 IoCs

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

pid	Process
4596	sc.exe
1764	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_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 1728	3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe	88
PID 3400 wrote to memory of 1764	3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe	89
PID 3400 wrote to memory of 4596	3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe	90
PID 3400 wrote to memory of 3908	3400	jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe	92
PID 1728 wrote to memory of 1836	1728	net.exe	95

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.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:3400
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1836
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4596
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790374879.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_7410cfedb6b46fde0dc9c27aa423121f2940983419903a1cbe76ee634b80a38a.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3908

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

1790374879.dat

Path C:\Users\Admin\AppData\Local\Temp\1790374879.dat
Size 35KB
SHA256 9336f64bd3aaf63e2fd9e9070df561a962bc27486702407b39919e88320f5792
MD5 78d1fdcaae7e4f24ab51d847b6525c68
SHA1 3e870d1f53d1c9e84d70d84588731e2043927a10
SHA512 cef499243d2c3392f060bcb645821868eee1cf160849b9003aa5ae2df8308f8358f90b87c787daa159cb0b92c3f04c43dace3d642e41c1705c51346d6a17f333
SSDEEP 768:ESV8Pgadr5L0DyhLeif75ZH7gAZD/S3IN/n1JRI/+sx1PN:ESV8jruif7j7gAxn/3RIv1
TLSH
T124F25B427A4349A3D1D3823172513FB68BF828745E065179DF72CB5A6CB54C2EB3A24B
MD5 SHA1 SHA512 SSDEEP TLSH

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