tofsee | 5ca5ccd924b945c085e70b8af94809345d979169dd31b198e60705374987eeaf

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06-10-2024 13:37

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General

Target

184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe
Size

10.9MB
MD5

184d8deaa51d84c10e00a9dc7b28a40d
SHA1

8646698b578a72a3c4bbc601bd7af3341f2f89c1
SHA256

5ca5ccd924b945c085e70b8af94809345d979169dd31b198e60705374987eeaf
SHA512

37881a88a0aff5f3737a9f3cdf7594279a1cabb51db5b338b3c9fa61ad5b953ba2708ac0200c2f1cb3ab8c62760c59b6646637ccf9cff3d63babc84d1dca8517
SSDEEP

24576:lPTYeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeu:lP

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

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\pzsbwqyl = "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
2760	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\pzsbwqyl\ImagePath = "C:\\Windows\\SysWOW64\\pzsbwqyl\\wqmsdnfl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2908	wqmsdnfl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2908 set thread context of 2820	2908	wqmsdnfl.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2520	sc.exe
2712	sc.exe
2872	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	wqmsdnfl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2940	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2940	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2940	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2940	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	31
PID 2688 wrote to memory of 2532	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2532	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2532	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2532	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	33
PID 2688 wrote to memory of 2520	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2520	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2520	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2520	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	35
PID 2688 wrote to memory of 2712	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2712	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2712	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2712	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	37
PID 2688 wrote to memory of 2872	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2872	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2872	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2872	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	39
PID 2688 wrote to memory of 2760	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	42
PID 2688 wrote to memory of 2760	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	42
PID 2688 wrote to memory of 2760	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	42
PID 2688 wrote to memory of 2760	2688	184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe	42
PID 2908 wrote to memory of 2820	2908	wqmsdnfl.exe	44
PID 2908 wrote to memory of 2820	2908	wqmsdnfl.exe	44
PID 2908 wrote to memory of 2820	2908	wqmsdnfl.exe	44
PID 2908 wrote to memory of 2820	2908	wqmsdnfl.exe	44
PID 2908 wrote to memory of 2820	2908	wqmsdnfl.exe	44
PID 2908 wrote to memory of 2820	2908	wqmsdnfl.exe	44

C:\Users\Admin\AppData\Local\Temp\184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pzsbwqyl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wqmsdnfl.exe" C:\Windows\SysWOW64\pzsbwqyl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pzsbwqyl binPath= "C:\Windows\SysWOW64\pzsbwqyl\wqmsdnfl.exe /d\"C:\Users\Admin\AppData\Local\Temp\184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pzsbwqyl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pzsbwqyl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:2760

C:\Windows\SysWOW64\pzsbwqyl\wqmsdnfl.exe
C:\Windows\SysWOW64\pzsbwqyl\wqmsdnfl.exe /d"C:\Users\Admin\AppData\Local\Temp\184d8deaa51d84c10e00a9dc7b28a40d_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- 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:2820

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\wqmsdnfl.exe

Filesize
12.4MB

MD5
ca0c299538409fb293c1314c0a74a42c

SHA1
650df864c542e959cf04c8c464b57a59e5fb6a97

SHA256
1e140018bd052579c10ef07a7c04962c810722c7b268f0a3882fd5e378b40243

SHA512
78b816d0fb8d933c6c1deaceb02f4a8070574b94edfda088a283f34b49c129a9597dc38da9d3107f7cc4393237b720a80ada9dd7aa675ddd1c36482a6859ffc9

Download Submit
memory/2688-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2688-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2688-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2688-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2688-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2820-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2908-16-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads