tofsee | 3e5d30f259b40ab127bba4769025389b12bf665b30d08d2f4a4f250f923dc724

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 19:52

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General

Target

2025-02-02_e39357b928ca044e73012265da182453_mafia.exe
Size

12.9MB
MD5

e39357b928ca044e73012265da182453
SHA1

2dc6844a2f158f1d8902bfa57cb2e2caa31e8572
SHA256

3e5d30f259b40ab127bba4769025389b12bf665b30d08d2f4a4f250f923dc724
SHA512

5cd11ab9a7d1cbb699219f182bc7ac83207b2759047b6385ff283c86cd306d1329ae70842c5634c84f322c719020ef6c2286cd31a7347b3e35f11fa8e66a8804
SSDEEP

6144:8LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ:xTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\jgwiokdw = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2552	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\jgwiokdw\ImagePath = "C:\\Windows\\SysWOW64\\jgwiokdw\\pcolerwg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	pcolerwg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 3000	2820	pcolerwg.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2712	sc.exe
2848	sc.exe
2716	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_e39357b928ca044e73012265da182453_mafia.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	pcolerwg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2788	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	31
PID 2660 wrote to memory of 2788	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	31
PID 2660 wrote to memory of 2788	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	31
PID 2660 wrote to memory of 2788	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	31
PID 2660 wrote to memory of 2676	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	33
PID 2660 wrote to memory of 2676	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	33
PID 2660 wrote to memory of 2676	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	33
PID 2660 wrote to memory of 2676	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	33
PID 2660 wrote to memory of 2712	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	35
PID 2660 wrote to memory of 2712	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	35
PID 2660 wrote to memory of 2712	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	35
PID 2660 wrote to memory of 2712	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	35
PID 2660 wrote to memory of 2848	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	37
PID 2660 wrote to memory of 2848	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	37
PID 2660 wrote to memory of 2848	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	37
PID 2660 wrote to memory of 2848	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	37
PID 2660 wrote to memory of 2716	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	39
PID 2660 wrote to memory of 2716	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	39
PID 2660 wrote to memory of 2716	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	39
PID 2660 wrote to memory of 2716	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	39
PID 2660 wrote to memory of 2552	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	42
PID 2660 wrote to memory of 2552	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	42
PID 2660 wrote to memory of 2552	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	42
PID 2660 wrote to memory of 2552	2660	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	42
PID 2820 wrote to memory of 3000	2820	pcolerwg.exe	44
PID 2820 wrote to memory of 3000	2820	pcolerwg.exe	44
PID 2820 wrote to memory of 3000	2820	pcolerwg.exe	44
PID 2820 wrote to memory of 3000	2820	pcolerwg.exe	44
PID 2820 wrote to memory of 3000	2820	pcolerwg.exe	44
PID 2820 wrote to memory of 3000	2820	pcolerwg.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jgwiokdw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pcolerwg.exe" C:\Windows\SysWOW64\jgwiokdw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jgwiokdw binPath= "C:\Windows\SysWOW64\jgwiokdw\pcolerwg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jgwiokdw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jgwiokdw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2716
- 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:2552

C:\Windows\SysWOW64\jgwiokdw\pcolerwg.exe
C:\Windows\SysWOW64\jgwiokdw\pcolerwg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- 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:3000

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\pcolerwg.exe

Filesize
14.6MB

MD5
8e03c91f5e4259453f65f9cf24cb2080

SHA1
90d86a2eb5b084fad1917ca6d9bb4848843cab37

SHA256
c1b3612d4af96662b5bea75e60ca9cb9cf0f8a707cd9e7d90307474b386062f5

SHA512
00fb390594f93f1fabe9590f1e5152eaeeb44c98f6123ec703c0a40a5d86d15b9a58dabc10ebe7b541e8980eecb864a2df5507b0ca53fb256b319de255253dbe

Download Submit
memory/2660-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2660-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2660-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2660-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2660-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2820-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3000-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads