37de2a9e2c02244baa5a160449d69e10ad9424adc7035aaaa586942d72ddc00d

General

Target

8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
Size

34KB
MD5

8bc0f4d4d6744642206459a53018c441
SHA1

5068eb8871cadbda74e5e0e22c3beadf7b46996e
SHA256

37de2a9e2c02244baa5a160449d69e10ad9424adc7035aaaa586942d72ddc00d
SHA512

a725555358f3520b28d24eb4da41d781a601734f0d9eca0a5f0d8f65844578b091c25f35b43f5724f09dff0c0a53d56601123308e81d593d00a735df3f8b7842
SSDEEP

768:ox7V4Q/xPao6O97cb9eOKguVWAmromN8Kz/p:o9Vpao659HruVWAmMmN82/p

Score

10^/10

discovery evasion execution 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
2320	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2320	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2200-0-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral1/memory/2200-24-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops file in System32 directory 11 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dllcache\ksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\midimap.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\midimap.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\msimg32.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\dllcache\msimg32.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\sysapp8.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yuksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\yuksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumsimg32.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\ksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\yumidimap.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files\Internet Explorer\msimg32.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\360\360se3\midimap.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\SogouExplorer\ksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\SogouExplorer\midimap.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\ksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\Internet Explorer\midimap.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\360\360se3\ksuser.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\360\360se3\msimg32.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
File created	C:\Program Files\SogouExplorer\msimg32.dll	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe

Launches sc.exe 2 IoCs

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

pid	Process
2308	sc.exe
2460	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	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.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
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 1980	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	28
PID 2200 wrote to memory of 1980	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	28
PID 2200 wrote to memory of 1980	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	28
PID 2200 wrote to memory of 1980	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	28
PID 2200 wrote to memory of 2308	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	29
PID 2200 wrote to memory of 2308	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	29
PID 2200 wrote to memory of 2308	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	29
PID 2200 wrote to memory of 2308	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	29
PID 2200 wrote to memory of 2460	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	31
PID 2200 wrote to memory of 2460	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	31
PID 2200 wrote to memory of 2460	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	31
PID 2200 wrote to memory of 2460	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	31
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 2200 wrote to memory of 2320	2200	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	32
PID 1980 wrote to memory of 1996	1980	net.exe	35
PID 1980 wrote to memory of 1996	1980	net.exe	35
PID 1980 wrote to memory of 1996	1980	net.exe	35
PID 1980 wrote to memory of 1996	1980	net.exe	35

C:\Users\Admin\AppData\Local\Temp\8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1980
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1996
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1723406286.dat, ServerMain c:\users\admin\appdata\local\temp\8bc0f4d4d6744642206459a53018c441_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2320

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

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\1723406286.dat

Filesize
34KB

MD5
d74b32acf3c52769c8b6a110ebd59563

SHA1
179dc3d1b5d32c030db6e46d3b183e2d64950a3a

SHA256
eeda3bd5cac42425c06cf9e6fe9f63e25c2da57d125c30ce6fb5e462019103e0

SHA512
6e86152d7e22bd87ab68b17687316aec7d3588503aad67927b95c7d9d08baee27e7f4865c142133758f07e792201e44bb81f3810b6c99d0138cd9666cd531c99

Download Submit
memory/2200-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2200-24-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing