tofsee | cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 20:12

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General

Target

JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe
Size

142KB
MD5

558455c90379aa477528aecf5c9171cd
SHA1

5ab455b2ec8b9005a1bacd4f7e522cbae7c6bebe
SHA256

cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2
SHA512

9db45da59dd7521927d0851b1cc96edab7bf1ba81d50d479ede299a34e2f42ef3fdda972dbe0e7ae29acb1c7475896d9931ba725f56a03d19a11c1385a6d7617
SSDEEP

1536:68EcWv2ZfLIPL09oTPftjqy/3/NousvD19QQ2hCubXj5/ICjNH7wbnFIsyna5Y4M:dT/oTPftjqb1yd7z5QWbwDOsFY2

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation 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
Tofsee family
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\rtlqfkqq = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2304	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\rtlqfkqq\ImagePath = "C:\\Windows\\SysWOW64\\rtlqfkqq\\chdvtwi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2752	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2556	chdvtwi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 2752	2556	chdvtwi.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2204	sc.exe
2820	sc.exe
2972	sc.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chdvtwi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2240	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	31
PID 2236 wrote to memory of 2240	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	31
PID 2236 wrote to memory of 2240	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	31
PID 2236 wrote to memory of 2240	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	31
PID 2236 wrote to memory of 2536	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	33
PID 2236 wrote to memory of 2536	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	33
PID 2236 wrote to memory of 2536	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	33
PID 2236 wrote to memory of 2536	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	33
PID 2236 wrote to memory of 2204	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	35
PID 2236 wrote to memory of 2204	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	35
PID 2236 wrote to memory of 2204	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	35
PID 2236 wrote to memory of 2204	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	35
PID 2236 wrote to memory of 2820	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	37
PID 2236 wrote to memory of 2820	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	37
PID 2236 wrote to memory of 2820	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	37
PID 2236 wrote to memory of 2820	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	37
PID 2236 wrote to memory of 2972	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	39
PID 2236 wrote to memory of 2972	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	39
PID 2236 wrote to memory of 2972	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	39
PID 2236 wrote to memory of 2972	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	39
PID 2236 wrote to memory of 2304	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	42
PID 2236 wrote to memory of 2304	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	42
PID 2236 wrote to memory of 2304	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	42
PID 2236 wrote to memory of 2304	2236	JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe	42
PID 2556 wrote to memory of 2752	2556	chdvtwi.exe	44
PID 2556 wrote to memory of 2752	2556	chdvtwi.exe	44
PID 2556 wrote to memory of 2752	2556	chdvtwi.exe	44
PID 2556 wrote to memory of 2752	2556	chdvtwi.exe	44
PID 2556 wrote to memory of 2752	2556	chdvtwi.exe	44
PID 2556 wrote to memory of 2752	2556	chdvtwi.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rtlqfkqq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chdvtwi.exe" C:\Windows\SysWOW64\rtlqfkqq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rtlqfkqq binPath= "C:\Windows\SysWOW64\rtlqfkqq\chdvtwi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rtlqfkqq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rtlqfkqq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2972
- 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
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2304

C:\Windows\SysWOW64\rtlqfkqq\chdvtwi.exe
C:\Windows\SysWOW64\rtlqfkqq\chdvtwi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf6104e5331d9a119eeb7875e4f09dda1321328b474b8ea5f079d81df98cfad2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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
  - System Location Discovery: System Language Discovery
  PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.0MB

MD5
f393ed519ee1ac2e442cbc01e0249dde

SHA1
40e71f0317e2347320c4d22657a4bb9634afb68b

SHA256
7f35427958d29055de273a21da150ab6cfb385c98db4c8a2736d356d4c26d0bc

SHA512
4c6f23290e01c5e7478211bc461ae91304d81c882074a69e29a717f4b60845715fbf23da5d1a39e84d64ae41511c7c776dc70d3aaab6580925cdec6e85f4825c

Download Submit
memory/2236-8-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/2236-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2236-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2236-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2236-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2236-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2556-17-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/2752-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2752-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads