tofsee | d1a74b2eac1780d7e458f4b15c42f83da939dd6665c3d17672d2528c478703bf

Analysis

max time kernel
148s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 07:16

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe
Size

13.2MB
MD5

e9709e66a6aad4c5d51296af9161cb0f
SHA1

73021a86a8e11dcca7e18e9dd19a62590d012799
SHA256

d1a74b2eac1780d7e458f4b15c42f83da939dd6665c3d17672d2528c478703bf
SHA512

74264be3ec6907d028877581483a27fc10116d6890c3c24ab89215208d9df94987a030aaf65f8e89b45d78733046d82712e38770b4b0bf31bcd4f911abfe7399
SSDEEP

49152:Q44444444444444444444444444444444444444444444444444444444444444D:

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

43.231.4.6

lazystax.ru

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\ikijbvia = "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
2864	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\ikijbvia\ImagePath = "C:\\Windows\\SysWOW64\\ikijbvia\\opveplzh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2568	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2588	opveplzh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 2568	2588	opveplzh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2656	sc.exe
2880	sc.exe
2112	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 2932 wrote to memory of 2540	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	28
PID 2932 wrote to memory of 2540	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	28
PID 2932 wrote to memory of 2540	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	28
PID 2932 wrote to memory of 2540	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	28
PID 2932 wrote to memory of 2640	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2640	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2640	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2640	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2656	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2656	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2656	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2656	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2880	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2880	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2880	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2880	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2112	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2112	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2112	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2112	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2864	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	39
PID 2932 wrote to memory of 2864	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	39
PID 2932 wrote to memory of 2864	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	39
PID 2932 wrote to memory of 2864	2932	e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe	39
PID 2588 wrote to memory of 2568	2588	opveplzh.exe	41
PID 2588 wrote to memory of 2568	2588	opveplzh.exe	41
PID 2588 wrote to memory of 2568	2588	opveplzh.exe	41
PID 2588 wrote to memory of 2568	2588	opveplzh.exe	41
PID 2588 wrote to memory of 2568	2588	opveplzh.exe	41
PID 2588 wrote to memory of 2568	2588	opveplzh.exe	41

C:\Users\Admin\AppData\Local\Temp\e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ikijbvia\
  2⤵
  PID:2540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\opveplzh.exe" C:\Windows\SysWOW64\ikijbvia\
  2⤵
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ikijbvia binPath= "C:\Windows\SysWOW64\ikijbvia\opveplzh.exe /d\"C:\Users\Admin\AppData\Local\Temp\e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2656
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ikijbvia "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ikijbvia
  2⤵
  - Launches sc.exe
  PID:2112
- 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:2864

C:\Windows\SysWOW64\ikijbvia\opveplzh.exe
C:\Windows\SysWOW64\ikijbvia\opveplzh.exe /d"C:\Users\Admin\AppData\Local\Temp\e9709e66a6aad4c5d51296af9161cb0f_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2568

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
13.9MB

MD5
fc8936d49bc152e6f382584bdf1914c6

SHA1
63a52fb244d0725dda1c3ac2b0f9864cf7e7d8aa

SHA256
960eca320d996bed7c0b1e9ab3f008309f5d71e0055b0707ceec79965e8ba6fa

SHA512
c77dc16eed21148b591b405038795c3354345802fceaf17112b0fca2f59a81684ff1095f32b60978879345bf577e2cb950e6194f3261869f210415001aa36b30

Download Submit
memory/2568-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-10-0x0000000000D30000-0x0000000000E30000-memory.dmp

Filesize
1024KB

Download
memory/2588-16-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2588-18-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2932-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2932-8-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/2932-7-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2932-4-0x0000000000400000-0x00000000008E9000-memory.dmp

Filesize
4.9MB

Download
memory/2932-2-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads