2195c99cc40bc19bca3d3e29c75681104e47d1dfee722b2260196f30f5addf8b

General

Target

fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe
Size

276KB
MD5

fdb6031dfc0ce88e4071eed944b60743
SHA1

26e6c7a7db7e3eca2206782fdf7e6207f38ca3e6
SHA256

2195c99cc40bc19bca3d3e29c75681104e47d1dfee722b2260196f30f5addf8b
SHA512

df7483403e7fa7bc32e44493268ab53b08c35b8c25dd382a6071cd72029382251681fcd5be589bee2dceab039d0601507c8b567b01a7772ad87b18527c1b5bc4
SSDEEP

6144:6nxg/DcalVaZNo4way/WTT42T6A+X1XPXwehGREcm:6xg/QsVaZN8aya45Bhf2

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1040	exosofsrhk.exe

Loads dropped DLL 1 IoCs

pid	Process
1040	exosofsrhk.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1808	2152	WerFault.exe	83
3836	1040	WerFault.exe	98

Kills process with taskkill 1 IoCs

evasion

pid	Process
3924	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2520	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1040	exosofsrhk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	taskkill.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1040	exosofsrhk.exe
1040	exosofsrhk.exe
1040	exosofsrhk.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1040	exosofsrhk.exe
1040	exosofsrhk.exe
1040	exosofsrhk.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 800	2152	fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe	90
PID 2152 wrote to memory of 800	2152	fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe	90
PID 2152 wrote to memory of 800	2152	fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe	90
PID 800 wrote to memory of 3924	800	cmd.exe	92
PID 800 wrote to memory of 3924	800	cmd.exe	92
PID 800 wrote to memory of 3924	800	cmd.exe	92
PID 800 wrote to memory of 2520	800	cmd.exe	94
PID 800 wrote to memory of 2520	800	cmd.exe	94
PID 800 wrote to memory of 2520	800	cmd.exe	94
PID 800 wrote to memory of 1040	800	cmd.exe	98
PID 800 wrote to memory of 1040	800	cmd.exe	98
PID 800 wrote to memory of 1040	800	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 492
  2⤵
  - Program crash
  PID:1808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 2152 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\fdb6031dfc0ce88e4071eed944b60743_JaffaCakes118.exe" & start C:\Users\Admin\AppData\Local\EXOSOF~1.EXE -f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:800
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 2152
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3924
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:2520
- - C:\Users\Admin\AppData\Local\exosofsrhk.exe
    C:\Users\Admin\AppData\Local\EXOSOF~1.EXE -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:1040
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 504
      4⤵
      Program crash
      PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2152 -ip 2152
1⤵
PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1040 -ip 1040
1⤵
PID:2124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\exosofsrhk.exe

Filesize
276KB

MD5
fdb6031dfc0ce88e4071eed944b60743

SHA1
26e6c7a7db7e3eca2206782fdf7e6207f38ca3e6

SHA256
2195c99cc40bc19bca3d3e29c75681104e47d1dfee722b2260196f30f5addf8b

SHA512
df7483403e7fa7bc32e44493268ab53b08c35b8c25dd382a6071cd72029382251681fcd5be589bee2dceab039d0601507c8b567b01a7772ad87b18527c1b5bc4

Download Submit
memory/1040-15-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-21-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-30-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-28-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-9-0x0000000000C00000-0x0000000000C02000-memory.dmp

Filesize
8KB

Download
memory/1040-11-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-26-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-17-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-13-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-19-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/1040-24-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/2152-0-0x0000000000690000-0x0000000000693000-memory.dmp

Filesize
12KB

Download
memory/2152-2-0x0000000000560000-0x0000000000562000-memory.dmp

Filesize
8KB

Download
memory/2152-1-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download
memory/2152-4-0x0000000001000000-0x00000000010D8000-memory.dmp

Filesize
864KB

Download

Analysis

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