fb9e34230f77529ed70cbbb9ef92d2d65ba379e7c795f41cf92b8650f4380338

General

Target

dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
Size

38KB
MD5

dc5b50523a957f642b96eed93363f6b5
SHA1

471ba19dec8d33057a73bbd04d0bf962b68f3fd6
SHA256

fb9e34230f77529ed70cbbb9ef92d2d65ba379e7c795f41cf92b8650f4380338
SHA512

4b6e129cf659fbc933394afa0301c7d6d6c8110d1ce48776e13ba88dcf5fc983ab0c6f14ece0a16d1892f9373614f78c6838cef4add74f806b51dcb5ca5d98b9
SSDEEP

768:bOvHPRamDrCFnAcBDu4RMEGx8JPj2cBPkbtgxV6tm2/:bOncmDMnAcBDuk2x85j5mbtC6w2/

Score

10^/10

discovery evasion execution spyware stealer upx

Malware Config

Signatures

Disables service(s) 3 TTPs
evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Deletes itself 1 IoCs

pid	Process
2876	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2156-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2156-12-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sysapp10.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ksuser.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\msimg32.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\yuksuser.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\midimap.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe

Launches sc.exe 2 IoCs

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

pid	Process
2320	sc.exe
2360	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	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2352	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	30
PID 2156 wrote to memory of 2352	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	30
PID 2156 wrote to memory of 2352	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	30
PID 2156 wrote to memory of 2352	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	30
PID 2156 wrote to memory of 2320	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	31
PID 2156 wrote to memory of 2320	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	31
PID 2156 wrote to memory of 2320	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	31
PID 2156 wrote to memory of 2320	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	31
PID 2156 wrote to memory of 2360	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	32
PID 2156 wrote to memory of 2360	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	32
PID 2156 wrote to memory of 2360	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	32
PID 2156 wrote to memory of 2360	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	32
PID 2352 wrote to memory of 2920	2352	net.exe	36
PID 2352 wrote to memory of 2920	2352	net.exe	36
PID 2352 wrote to memory of 2920	2352	net.exe	36
PID 2352 wrote to memory of 2920	2352	net.exe	36
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38
PID 2156 wrote to memory of 2876	2156	dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe	38

C:\Users\Admin\AppData\Local\Temp\dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc5b50523a957f642b96eed93363f6b5_JaffaCakes118.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:2156
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2920
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2360
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1726147923.dat, ServerMain c:\users\admin\appdata\local\temp\dc5b50523a957f642b96eed93363f6b5_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2876

Network

MITRE ATT&CK Enterprise v15

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

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Service Stop

2

T1489

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\1726147923.dat

Filesize
42KB

MD5
be5b3ffdb47382f8b8bb5011fb0cbbf8

SHA1
9b3fbf73c35a938b6140543cd2c23535f90af8fa

SHA256
e0a4cf4aeaa240ef670e69aaaf6c9e475661444488c86a1fd3e05086f835d8a2

SHA512
45f47f4dc45114a818b965f43d289cd331b5acdcf402f4a788ed4b37e6a687b09c8dcc76e01533f94f782c0b24f175a0a612a4a3e0c8ba21451f1e1118e4d334

Download Submit
memory/2156-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2156-12-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing