14ebec94b490fffbfe2800f04e1bdb77a582f9ca30c5923e0fb278b34897100c

General

Target

ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
Size

38KB
MD5

ad514e36f03dda43c9056cb30891c4e6
SHA1

ffe7381ee1a4716f11de48b300b36f9f9059c11a
SHA256

14ebec94b490fffbfe2800f04e1bdb77a582f9ca30c5923e0fb278b34897100c
SHA512

bfe4e6d358fd157916488bc37d2a891ecbf3f16617cb7d888eca40577512e95e59c036ff65cc9d791ea28799441cb34fab1e45dbe07a2e69b0e9b76411b4660f
SSDEEP

768:Vo1g8s6A481XR9wBzLkD6Re6JGnY8zrBAxAlYoC8UtDT04U:Voud6XKRyBXkzdYqFMAlYNPT7U

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
720	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
720	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 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4524-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4524-13-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4524-16-0x0000000000400000-0x0000000000418000-memory.dmp	upx

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\yumidimap.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\midimap.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\msimg32.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sysapp10.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\yuksuser.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ksuser.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe

Launches sc.exe 2 IoCs

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

pid	Process
1408	sc.exe
2776	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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 4460	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	84
PID 4524 wrote to memory of 4460	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	84
PID 4524 wrote to memory of 4460	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	84
PID 4524 wrote to memory of 1408	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	85
PID 4524 wrote to memory of 1408	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	85
PID 4524 wrote to memory of 1408	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	85
PID 4524 wrote to memory of 2776	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	86
PID 4524 wrote to memory of 2776	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	86
PID 4524 wrote to memory of 2776	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	86
PID 4460 wrote to memory of 1236	4460	net.exe	90
PID 4460 wrote to memory of 1236	4460	net.exe	90
PID 4460 wrote to memory of 1236	4460	net.exe	90
PID 4524 wrote to memory of 720	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	94
PID 4524 wrote to memory of 720	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	94
PID 4524 wrote to memory of 720	4524	ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\ad514e36f03dda43c9056cb30891c4e6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ad514e36f03dda43c9056cb30891c4e6_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:4524
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4460
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1236
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1408
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1724116142.dat, ServerMain c:\users\admin\appdata\local\temp\ad514e36f03dda43c9056cb30891c4e6_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:720

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\1724116142.dat

Filesize
41KB

MD5
bcec725ecee63161f2361200ee3a8643

SHA1
f44c1ce2b946389f2d410981f90fd63f78719a8a

SHA256
1bb0e5fe4a94f363a34657c4a63367ac4c6b1e845ecab7c4ba551b5e1df2d8f6

SHA512
792ae15d7202f8b45e91973fc8c63270f9ed33561f8244c609d01acac688d187456f9f447f31cac2132f45bceb547b9429f0896a9d1377bcd5a25d973ce5f30f

Download Submit
memory/4524-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4524-13-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4524-16-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

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