902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc

General

Target
jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
Size 64KB
Sample260924-md26pabc32
SHA256 902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc
MD5 25b20bd04cd8d379c0ba75950901faa9
SHA1 414b182251869331bb9dffbe3a3cbee66ee4e8e9
SHA512 06d9176112204d753cb3bb95b3bfa2f04789d34b4ecd0ff37f6a89a766b2c6c0f0d1c17dc2b7b420f57b8dab484f0a582b61a808407651134dc53dcec5a7a4fd
SSDEEP 1536:q2tapfyG2eP5YiB9A8Zhq+lyTjeoAz0j:q2rG7lB5tWjeD0j
TLSH
T1BE53368692CBC5B5FCE43C300217D2B7B4767CA726F519AB1607FCD94ABA0207278E46
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
6016	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
6016	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 10 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\msimg32.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
File created	C:\Windows\SysWOW64\sysapp2.dll	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe

Launches sc.exe 2 IoCs

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

pid	Process
3544	sc.exe
1168	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_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 360 wrote to memory of 4864	360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe	90
PID 360 wrote to memory of 3544	360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe	91
PID 360 wrote to memory of 1168	360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe	92
PID 360 wrote to memory of 6016	360	jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe	94
PID 4864 wrote to memory of 6032	4864	net.exe	97

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.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:360
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4864
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:6032
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3544
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790245415.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_902bc7ae5f984b9965c33b628250d8f39e9395e2ce1001ef58f84525a90448cc.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:6016

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

Replay Monitor

Loading Replay Monitor...

Downloads

1790245415.dat

Path C:\Users\Admin\AppData\Local\Temp\1790245415.dat
Size 34KB
SHA256 1e7ca95a4b6c2a54d3b407d8f77a6b3268595e18c85549473fa1f6a7c993d941
MD5 a52edb517e41afee5c856b6d5bbc8030
SHA1 eb9e24be49f03caf8451def2a2eb53bf17aea069
SHA512 0128e60ff1558152df3cae441c1ddb615af399b4182beb39018126ff94bdc2202794bb83653a703af7979094c535e96da4cfc9933219dc11a30c996784d6dc64
SSDEEP 768:bPkbmHTTPBjupvnNr77OpcdPuOJph32R7tRU:bkbcTVjuf77OpobpJ2R7tG
TLSH
T1F6F23B137A468462E3CB423439114FB98BFDBD301D465566F7226B8F0DB45C2EA3B607
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing