tofsee | 3299d2af046f00158fa626819958e757bef231094dce1cc1e3d2f2d30657901e

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 07:59

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General

Target

JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe
Size

14.0MB
MD5

df111541b38a5770af185e26817f8ddc
SHA1

3cb16dac04be9c17cafba3c8c4b94f4d264d5a20
SHA256

3299d2af046f00158fa626819958e757bef231094dce1cc1e3d2f2d30657901e
SHA512

177e75aedb32afea5a19b8ab9be60d3cb37dbfdcbaa017c58caf9339dfa55fd7951cabad5f9ed21544328204590c9bdb4ebde0b02944bba0d093ea5a6ac42d74
SSDEEP

3072:OrLSAaIXFM9X/WWIyOEfEDQMZWecFKmZ:oNWktyH9V

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

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\gmnseniw = "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
2196	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\gmnseniw\ImagePath = "C:\\Windows\\SysWOW64\\gmnseniw\\pcqtvvtg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	pcqtvvtg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2588	2748	pcqtvvtg.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2148	sc.exe
2792	sc.exe
2616	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	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	pcqtvvtg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_df111541b38a5770af185e26817f8ddc.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 2672 wrote to memory of 2836	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	30
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	30
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	30
PID 2672 wrote to memory of 2836	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	30
PID 2672 wrote to memory of 2880	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	32
PID 2672 wrote to memory of 2880	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	32
PID 2672 wrote to memory of 2880	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	32
PID 2672 wrote to memory of 2880	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	32
PID 2672 wrote to memory of 2148	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	34
PID 2672 wrote to memory of 2148	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	34
PID 2672 wrote to memory of 2148	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	34
PID 2672 wrote to memory of 2148	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	34
PID 2672 wrote to memory of 2792	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	36
PID 2672 wrote to memory of 2792	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	36
PID 2672 wrote to memory of 2792	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	36
PID 2672 wrote to memory of 2792	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	36
PID 2672 wrote to memory of 2616	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	38
PID 2672 wrote to memory of 2616	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	38
PID 2672 wrote to memory of 2616	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	38
PID 2672 wrote to memory of 2616	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	38
PID 2748 wrote to memory of 2588	2748	pcqtvvtg.exe	41
PID 2748 wrote to memory of 2588	2748	pcqtvvtg.exe	41
PID 2748 wrote to memory of 2588	2748	pcqtvvtg.exe	41
PID 2748 wrote to memory of 2588	2748	pcqtvvtg.exe	41
PID 2748 wrote to memory of 2588	2748	pcqtvvtg.exe	41
PID 2748 wrote to memory of 2588	2748	pcqtvvtg.exe	41
PID 2672 wrote to memory of 2196	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	42
PID 2672 wrote to memory of 2196	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	42
PID 2672 wrote to memory of 2196	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	42
PID 2672 wrote to memory of 2196	2672	JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gmnseniw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pcqtvvtg.exe" C:\Windows\SysWOW64\gmnseniw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gmnseniw binPath= "C:\Windows\SysWOW64\gmnseniw\pcqtvvtg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gmnseniw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gmnseniw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- 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:2196

C:\Windows\SysWOW64\gmnseniw\pcqtvvtg.exe
C:\Windows\SysWOW64\gmnseniw\pcqtvvtg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df111541b38a5770af185e26817f8ddc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- 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:2588

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\pcqtvvtg.exe

Filesize
13.5MB

MD5
c9a77c8d1dc9d3926c77a849b9186d22

SHA1
1088e5e65e0629ced55ad87a9f51198c6f21a174

SHA256
1baf8d15f25035af4c19aa0c0099c708452795d7d0c2c3109fa8f9e18a9be00f

SHA512
48db772f148941b32b61fd9d489d9a157b11dac88d3b349b604eb9358990a6348a3df5266e4fa1508a038dc5ad3e71e090d22fc12fa4eaea7c883133def82320

Download Submit
memory/2588-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2672-15-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2672-2-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2672-14-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2672-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2672-1-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2748-12-0x00000000050E0000-0x00000000050F1000-memory.dmp

Filesize
68KB

Download
memory/2748-11-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads