tofsee | 2f05f2d8f91e7938437ff58cfa4aecae41d17e18d1abc37a2f70f24227b44230

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 17:07

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General

Target

f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe
Size

13.7MB
MD5

f869bf89806a1807f9f293f862ce247d
SHA1

ad7e03dcfba00ae87b7ac0917ce4fb71692d6908
SHA256

2f05f2d8f91e7938437ff58cfa4aecae41d17e18d1abc37a2f70f24227b44230
SHA512

5b0b072562e5c2970714d9efefaf022b79f978bc5241e1d0d1b83e66759ec4a75f7fec1e200601caa7af9f0b9cb09951af62b44f788f9bac9ffeeb75275af566
SSDEEP

49152:wqwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwH:

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\fzvaxwzv = "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
2572	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\fzvaxwzv\ImagePath = "C:\\Windows\\SysWOW64\\fzvaxwzv\\quxtfolh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2592	quxtfolh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2592 set thread context of 2840	2592	quxtfolh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2456	sc.exe
1960	sc.exe
2936	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 1136 wrote to memory of 2268	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	28
PID 1136 wrote to memory of 2268	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	28
PID 1136 wrote to memory of 2268	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	28
PID 1136 wrote to memory of 2268	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	28
PID 1136 wrote to memory of 2116	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	30
PID 1136 wrote to memory of 2116	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	30
PID 1136 wrote to memory of 2116	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	30
PID 1136 wrote to memory of 2116	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	30
PID 1136 wrote to memory of 1960	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	32
PID 1136 wrote to memory of 1960	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	32
PID 1136 wrote to memory of 1960	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	32
PID 1136 wrote to memory of 1960	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	32
PID 1136 wrote to memory of 2936	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	34
PID 1136 wrote to memory of 2936	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	34
PID 1136 wrote to memory of 2936	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	34
PID 1136 wrote to memory of 2936	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	34
PID 1136 wrote to memory of 2456	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	36
PID 1136 wrote to memory of 2456	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	36
PID 1136 wrote to memory of 2456	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	36
PID 1136 wrote to memory of 2456	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	36
PID 1136 wrote to memory of 2572	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	39
PID 1136 wrote to memory of 2572	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	39
PID 1136 wrote to memory of 2572	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	39
PID 1136 wrote to memory of 2572	1136	f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe	39
PID 2592 wrote to memory of 2840	2592	quxtfolh.exe	41
PID 2592 wrote to memory of 2840	2592	quxtfolh.exe	41
PID 2592 wrote to memory of 2840	2592	quxtfolh.exe	41
PID 2592 wrote to memory of 2840	2592	quxtfolh.exe	41
PID 2592 wrote to memory of 2840	2592	quxtfolh.exe	41
PID 2592 wrote to memory of 2840	2592	quxtfolh.exe	41

C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fzvaxwzv\
  2⤵
  PID:2268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\quxtfolh.exe" C:\Windows\SysWOW64\fzvaxwzv\
  2⤵
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fzvaxwzv binPath= "C:\Windows\SysWOW64\fzvaxwzv\quxtfolh.exe /d\"C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:1960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fzvaxwzv "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fzvaxwzv
  2⤵
  - Launches sc.exe
  PID:2456
- 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:2572

C:\Windows\SysWOW64\fzvaxwzv\quxtfolh.exe
C:\Windows\SysWOW64\fzvaxwzv\quxtfolh.exe /d"C:\Users\Admin\AppData\Local\Temp\f869bf89806a1807f9f293f862ce247d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2840

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\quxtfolh.exe

Filesize
13.0MB

MD5
5c9b72b9c4a7220d2399b9afb28bc23d

SHA1
a03a8e3fcdf1969c9778dd907d22f3a8ef627eda

SHA256
95308439b2ebb249538097c4a166cf5bd4d1d88d894b3b43c0cb4a588c7192ac

SHA512
3c42633b04ccf880ad8c1c4e9e261efe2457d85a064bf2190713c3b7c28d202e9d4b3c7262e8180a0614fdf536e8977089c1d02401d7c73007009ad3e11ddf9d

Download Submit
memory/1136-13-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/1136-2-0x00000000002A0000-0x00000000002B3000-memory.dmp

Filesize
76KB

Download
memory/1136-4-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/1136-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/1136-8-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2592-9-0x0000000003100000-0x0000000003200000-memory.dmp

Filesize
1024KB

Download
memory/2592-10-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/2592-20-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2592-19-0x0000000000400000-0x0000000002CC0000-memory.dmp

Filesize
40.8MB

Download
memory/2840-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-23-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads