eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d

General

Target
jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
Size 64KB
Sample260930-mtpwasyvcs
SHA256 eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d
MD5 5d117afe457c2d55c37fd5639b5fa353
SHA1 560f9f27e54d534e95863a9e2060e5f87053947c
SHA512 97ccb5371e8b9c42aee173ee49e0d20e21783fa03122df925f88f9098d15da60296419177f3828340a98b3f0805a3e5c5bb3d79904238c8044d8429a12867114
SSDEEP 1536:qf5RHm1qRMI/1wz8a0gyz8CXZ5ym2N5FuEHBJw:qfJRMI/Kz8eCJIfvFuwTw
TLSH
T1FA53BF06E1CB48AADC81DC3902E19F364425A4F225B55EFE8FD48FF9282D16DD5362CA
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
4556	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
4556	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\yuksuser.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\msimg32.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File opened for modification	C:\Windows\SysWOW64\yuksuser.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
File created	C:\Windows\SysWOW64\sysapp29.dll	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe

Launches sc.exe 2 IoCs

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

pid	Process
3460	sc.exe
4476	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 4808	2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe	86
PID 2312 wrote to memory of 4476	2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe	87
PID 2312 wrote to memory of 3460	2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe	88
PID 2312 wrote to memory of 4556	2312	jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe	92
PID 4808 wrote to memory of 1808	4808	net.exe	93

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.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:2312
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4808
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1808
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4476
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3460
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790765141.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_eae6ee8eab1b61a40477b6bd10b8911298d39cfc631e1312b0636536b59d550d.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4556

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

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Downloads

1790765141.dat

Path C:\Users\Admin\AppData\Local\Temp\1790765141.dat
Size 32KB
SHA256 429c734db4b2192fe44ded51a7795ae0f92fee6162764f7f73bad0d332494149
MD5 d9ae2a7637a13ab7833cce7f4e713aba
SHA1 71771f5a17eb5d87373a9263e987dc9e1e7481e9
SHA512 5ce00135af817d173ac455e0e24d8c1715f527793a4811273e02a70298a64ecc7151169f7495eef04fee82335916ca4a27e8b3d79458bbc0c2d1259402a03323
SSDEEP 384:RNqL0mh9NfNryPHkx0bzSYAk8kVfO5Y4ZXXqGa/77y4gk+vjt4mt6dyRH+eZvvCW:fqLJLLEIkVf5/75L+vjGm4dA5ZCR+p
TLSH
T1BBE25B137A4B89B2E2A2823136552F799BFC78301E0715A5DB72D78B1DB54C3DB36207
MD5 SHA1 SHA512 SSDEEP TLSH

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