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
2284	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2284	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2588-0-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/2588-28-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops file in System32 directory 11 IoCs

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

Drops file in Program Files directory 9 IoCs

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

Launches sc.exe 2 IoCs

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

pid	Process
4388	sc.exe
3008	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	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 12 IoCs

pid	Process
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 1752	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	91
PID 2588 wrote to memory of 1752	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	91
PID 2588 wrote to memory of 1752	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	91
PID 2588 wrote to memory of 4388	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	92
PID 2588 wrote to memory of 4388	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	92
PID 2588 wrote to memory of 4388	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	92
PID 2588 wrote to memory of 3008	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	93
PID 2588 wrote to memory of 3008	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	93
PID 2588 wrote to memory of 3008	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	93
PID 2588 wrote to memory of 2284	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	96
PID 2588 wrote to memory of 2284	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	96
PID 2588 wrote to memory of 2284	2588	8bc0f4d4d6744642206459a53018c441_JaffaCakes118.exe	96
PID 1752 wrote to memory of 3844	1752	net.exe	98
PID 1752 wrote to memory of 3844	1752	net.exe	98
PID 1752 wrote to memory of 3844	1752	net.exe	98

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:2588
- C:\Windows\SysWOW64\net.exe
  net stop cryptsvc
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop cryptsvc
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3844
- C:\Windows\SysWOW64\sc.exe
  sc config cryptsvc start= disabled
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4388
- C:\Windows\SysWOW64\sc.exe
  sc delete cryptsvc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\rundll32.exe
  C:\Users\Admin\AppData\Local\Temp\1723406287.dat, ServerMain c:\users\admin\appdata\local\temp\8bc0f4d4d6744642206459a53018c441_jaffacakes118.exe
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2284

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4060,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
1⤵
PID:3796

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\1723406287.dat

Filesize
34KB

MD5
5f2f0e0b0a157b5912f9801284459589

SHA1
492024bdca9c9765a64d09902c5f088315c7305f

SHA256
cc8f256098cb52a3ba184dbded59bd6a4885d1ac9c4a404e0a7184b8fed07ef8

SHA512
aa6101e9341663cb4e8096fc55e6c6c04b6ee341ad2320b0bd1ee1adc4ab2da31173cab706bb487fbf14cfa24b95a273257e6aad43d684cb2dd4cc1703ff51ae

Download Submit
memory/2588-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2588-28-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

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