a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c

General

Target
jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
Size 64KB
Sample260925-wlgpdssgqa
SHA256 a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c
MD5 2bb64a95edc87103d5d6b0d5d0a6ef15
SHA1 923619b1dd24062cc5ca201f433d09202286a716
SHA512 03e8fc129755e54c51f7a2f49e03f16a21467076fde2d7cd9179262378af77fbc16d3dc5415da9da4ff8d9b8fbf48e49c98c671ef0f0f7648d876963e7edab84
SSDEEP 768:y+Wz0KDndcQd5GF3CO62N9dLyXe56DzIGTzNfnKzPwo6tig:yAAnUSO6E9sO6DzRlKkozg
TLSH
T198535906E6C74023DD94C83C02E26F7945A1A5F215B24AFE4FD58FF9782E199D23B2C8
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
5604	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
5604	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 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\YUmidimap.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
File created	C:\Windows\SysWOW64\midimap.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
File created	C:\Windows\SysWOW64\sysapp36.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
File created	C:\Windows\SysWOW64\YUksuser.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
File created	C:\Windows\SysWOW64\ksuser.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe

Launches sc.exe 2 IoCs

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

pid	Process
4164	sc.exe
4120	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_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.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
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 3312	4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe	89
PID 4144 wrote to memory of 4164	4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe	90
PID 4144 wrote to memory of 4120	4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe	91
PID 4144 wrote to memory of 5604	4144	jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe	93
PID 3312 wrote to memory of 1200	3312	net.exe	96

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.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:4144
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3312
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1200
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4164
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4120
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1790359227.dat, ServerMain c:\users\admin\appdata\local\temp\jaffacakes118_a50d06c2c07d8211d7cc47c807016aa3b3ea98a7fffda26b6b404f0b01c9ef7c.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:5604

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

1790359227.dat

Path C:\Users\Admin\AppData\Local\Temp\1790359227.dat
Size 34KB
SHA256 1304078cde1ff3f61e2d99934f68a68cd5a8018894296a01338c7f3189a1672a
MD5 c6454696f4f50c4f1fbfaf4d393b39f3
SHA1 20eae529cc9d4cc6633729b3e77db6296f107df4
SHA512 b29e5a5e3c92e35ad91b0014f28875b31849f179cd19c4d8949a900590aaffbfaa9c4e46e39faeebbafa2043b5855eae66be2221e02f015933ed8b229926ac73
SSDEEP 768:NMVCCNLrvnBs9P3nTeO7sfG4uzgNiOTRiDo:qVCCNfBo3nB78szNQRn
TLSH
T103F26C127A5744B2E1D2863032922FB98FF834701E075179DB72CB5B2D766C7EA3A247
MD5 SHA1 SHA512 SSDEEP TLSH

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