217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672

General

Target
jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
Size 64KB
Sample260925-2wp2eay14l
SHA256 217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672
MD5 cb7517b93e4d90663fee4305a5501ef1
SHA1 47dbfb58c17cbaff10b4eee9325c74ec483b0644
SHA512 704bc7d25ce2f32e77269349f620a1f285286643b0931e05b3c7703adff5f806a592159ec8c4cd1a6793ea5b397be60c5957a2fc1e9d897867a91cb2c32efe22
SSDEEP 1536:2jNGxUbFsxEpjkvjvj7HCGnJqgHQ2zjLAO+tyoCJoF:2jNGq+TjTH7wqj8yoWoF
TLSH
T18953BF06D1D74052DD60CC3C12E1AFBA406161F125B24EFE8FD58FF9A82E569E93B2C9
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
1492	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
1492	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 8 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File created	C:\Windows\SysWOW64\sysapp28.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File opened for modification	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe

Launches sc.exe 2 IoCs

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

pid	Process
4884	sc.exe
3552	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_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.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
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 1620	4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe	85
PID 4972 wrote to memory of 4884	4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe	86
PID 4972 wrote to memory of 3552	4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe	89
PID 4972 wrote to memory of 1492	4972	jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe	90
PID 1620 wrote to memory of 4424	1620	net.exe	92

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.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:4972
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4424
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3552
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790376973.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_217cae5dea0d8a27a54cf8c509901f303d9d41a63d4f9a829f159d0ca6c21672.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1492

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

1790376973.dat

Path C:\Users\Admin\AppData\Local\Temp\1790376973.dat
Size 33KB
SHA256 109fb79862ce5cca3d940f75a33d368834828708dc16a8f69695b1bdc4140191
MD5 656750a963754716356f9c033b634199
SHA1 790f751803be8e4fa822d5e222716f2f0a55cd51
SHA512 7d57fa98553ec4ca97420d1cfec690a054939c27ae42db7d6c67c44a2afe20444121c1fc961509e17085178efb4aa1004cc4e7fe94be0194242fb0d587ee2133
SSDEEP 768:+StWycOSevI1cGUOnv7CD7jSnISYhqD5RJbgh/5Js:+StWySkGUOvE7jSnWklRJ8nC
TLSH
T1A4E25C13BA4745A3E2E2413036412BB58FFC28342E13A1A6DB72875B2DB45C7DE3A307
MD5 SHA1 SHA512 SSDEEP TLSH

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