tofsee | 8fcf678f5a3aff424030ebb9baf5376c6abc502bd008ac2c395b79c702e09ce3

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 16:37

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General

Target

ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe
Size

12.5MB
MD5

ea6edf12d1387b7c069d1b757f4c75b6
SHA1

1fd14b4a3ab94eac6bd4d88d458373c832a839cc
SHA256

8fcf678f5a3aff424030ebb9baf5376c6abc502bd008ac2c395b79c702e09ce3
SHA512

2f269d21a8fb38d1828850d4d5d733c71f64185eee1ad82f678f8d7517a0b7b502fedaac1359db4eefc7f5cad3a1182f98466bdaf28c2278bd70202160862745
SSDEEP

12288:mbyIFLSrHeAjMPMfegyFO6EDY16QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQX:mbSrHegL0/EDY

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ybsqjkzp = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2472	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ybsqjkzp\ImagePath = "C:\\Windows\\SysWOW64\\ybsqjkzp\\uunamjik.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1988	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2556	uunamjik.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 1988	2556	uunamjik.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2588	sc.exe
2656	sc.exe
2564	sc.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 1924	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	28
PID 2952 wrote to memory of 1924	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	28
PID 2952 wrote to memory of 1924	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	28
PID 2952 wrote to memory of 1924	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	28
PID 2952 wrote to memory of 2152	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	30
PID 2952 wrote to memory of 2152	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	30
PID 2952 wrote to memory of 2152	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	30
PID 2952 wrote to memory of 2152	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	30
PID 2952 wrote to memory of 2588	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	32
PID 2952 wrote to memory of 2588	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	32
PID 2952 wrote to memory of 2588	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	32
PID 2952 wrote to memory of 2588	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	32
PID 2952 wrote to memory of 2656	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	34
PID 2952 wrote to memory of 2656	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	34
PID 2952 wrote to memory of 2656	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	34
PID 2952 wrote to memory of 2656	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	34
PID 2952 wrote to memory of 2564	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	36
PID 2952 wrote to memory of 2564	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	36
PID 2952 wrote to memory of 2564	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	36
PID 2952 wrote to memory of 2564	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	36
PID 2952 wrote to memory of 2472	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	39
PID 2952 wrote to memory of 2472	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	39
PID 2952 wrote to memory of 2472	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	39
PID 2952 wrote to memory of 2472	2952	ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe	39
PID 2556 wrote to memory of 1988	2556	uunamjik.exe	41
PID 2556 wrote to memory of 1988	2556	uunamjik.exe	41
PID 2556 wrote to memory of 1988	2556	uunamjik.exe	41
PID 2556 wrote to memory of 1988	2556	uunamjik.exe	41
PID 2556 wrote to memory of 1988	2556	uunamjik.exe	41
PID 2556 wrote to memory of 1988	2556	uunamjik.exe	41

C:\Users\Admin\AppData\Local\Temp\ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ybsqjkzp\
  2⤵
  PID:1924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uunamjik.exe" C:\Windows\SysWOW64\ybsqjkzp\
  2⤵
  PID:2152
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ybsqjkzp binPath= "C:\Windows\SysWOW64\ybsqjkzp\uunamjik.exe /d\"C:\Users\Admin\AppData\Local\Temp\ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ybsqjkzp "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ybsqjkzp
  2⤵
  - Launches sc.exe
  PID:2564
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  PID:2472

C:\Windows\SysWOW64\ybsqjkzp\uunamjik.exe
C:\Windows\SysWOW64\ybsqjkzp\uunamjik.exe /d"C:\Users\Admin\AppData\Local\Temp\ea6edf12d1387b7c069d1b757f4c75b6_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:1988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\uunamjik.exe

Filesize
12.8MB

MD5
183fc861b1ee2f1cbd8dd206c0e61e45

SHA1
577597b07e94388cc35110b24b09a223d02b3a59

SHA256
00a89988fd96020261d3a9abb5784cb35f043c4bf4db3f1a8228a1087cff9915

SHA512
6b6975103ef9050e6c1bdf85249a5e2608f9965b69b80b85c7ca74af7d0ff30ad1034e74f8171d299abcebcec24d75135e1c84f354beae92e7708dacc62698f7

Download Submit
memory/1988-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1988-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1988-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1988-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1988-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1988-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1988-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2556-12-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2556-15-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2556-10-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2952-3-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2952-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2952-8-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/2952-4-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads