45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be

General

Target
jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
Size 64KB
Sample260924-mdarfaselb
SHA256 45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be
MD5 712b74bda8b6d68755e2af702e4eccb1
SHA1 eada922c6bc6b5db8e494a620a2b25e6218b0278
SHA512 8f93db349468a52185cee90ae2bd6ca948de4d60d7798608a3f4874f55892864afc35b9d61f0971506b317e674e5096b071b63bd499783c54e338000e108515a
SSDEEP 768:Ys6tW2iild5GFOAXYbPeyinWe3T9iv5D3oYt4HkfWusFKmiNa9SjNBZTVwoNvEo:Y/qtOAXYCrl35iv5DTjfp1DBZTmoNvP
TLSH
T1EA53BF02D5CB046BDC91C87816E25FB58462A0F22AB55DFE9FC48FF9382E459D2371C9
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
3428	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
3428	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_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\msimg32.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\sysapp32.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe

Launches sc.exe 2 IoCs

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

pid	Process
6088	sc.exe
1424	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_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.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
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 3176	4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe	89
PID 4816 wrote to memory of 1424	4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe	90
PID 4816 wrote to memory of 6088	4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe	91
PID 4816 wrote to memory of 3428	4816	jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe	95
PID 3176 wrote to memory of 2212	3176	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.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:4816
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3176
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2212
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1424
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:6088
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790245229.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_45fa786796c0d07e9caa711bc74040d970e326a0a840d91f6f58f47a858aa2be.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:3428

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

1790245229.dat

Path C:\Users\Admin\AppData\Local\Temp\1790245229.dat
Size 35KB
SHA256 3d819e8e1a0636d9c0ccb241449e6ec332bca9bd4ef9e3cee6033755ee813b17
MD5 3de8eafc3f65dbf2e97270b16aa9c564
SHA1 da6713d2f3d48e206590f73e033f4dacb4127feb
SHA512 a59f2e604302a003e09af78400c782da3beb88d354ba106523c930651ab1bf8796cc94a2830bfbbceffa37e335acd57566e027fa85e4b5483701554d4643c36f
SSDEEP 768:nIayg8OPQQ0opL4XCEVq70qmVjj7bfclt0b/XN3OH7IRGLPEb:4OPLHEVqLsj7bwc9nRCc
TLSH
T111F26C12BA4785B2D2D2823077913BB6DBF868341E07649DDB33D7561DB19C2DE3A20B
MD5 SHA1 SHA512 SSDEEP TLSH

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