tofsee | cc818e8fc4d68e1d87fd4ba4e8c6cef784b1d0e0d64c2474b9dc5943287f2c6b

Analysis

max time kernel
148s
max time network
129s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 19:39

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General

Target

2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe
Size

11.5MB
MD5

c15b4cfd4cea02fc55d57af8bf070a36
SHA1

c8a67802d33a2363de332b3cf80942267b66eed6
SHA256

cc818e8fc4d68e1d87fd4ba4e8c6cef784b1d0e0d64c2474b9dc5943287f2c6b
SHA512

468bc255cfcee32fa68aca26f78e2ba561949cd13c72a3db674ad55dbde2ed9c1e49222bdb1d9d87eda81316dc8f8c1cd23b34c45c91c3c4c5b0a6deec77909a
SSDEEP

6144:mLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQN:3TYe+D2jFu+iZoUFhAz

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\xmfcwoup = "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
2188	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\xmfcwoup\ImagePath = "C:\\Windows\\SysWOW64\\xmfcwoup\\wyrcjrfv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2924	wyrcjrfv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2924 set thread context of 2788	2924	wyrcjrfv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2440	sc.exe
2464	sc.exe
3060	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wyrcjrfv.exe
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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 1796	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 2568 wrote to memory of 1796	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 2568 wrote to memory of 1796	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 2568 wrote to memory of 1796	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 2568 wrote to memory of 1972	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 2568 wrote to memory of 1972	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 2568 wrote to memory of 1972	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 2568 wrote to memory of 1972	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 2568 wrote to memory of 2464	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 2568 wrote to memory of 2464	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 2568 wrote to memory of 2464	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 2568 wrote to memory of 2464	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 2568 wrote to memory of 3060	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 2568 wrote to memory of 3060	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 2568 wrote to memory of 3060	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 2568 wrote to memory of 3060	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 2568 wrote to memory of 2440	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 2568 wrote to memory of 2440	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 2568 wrote to memory of 2440	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 2568 wrote to memory of 2440	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 2568 wrote to memory of 2188	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	40
PID 2568 wrote to memory of 2188	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	40
PID 2568 wrote to memory of 2188	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	40
PID 2568 wrote to memory of 2188	2568	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	40
PID 2924 wrote to memory of 2788	2924	wyrcjrfv.exe	43
PID 2924 wrote to memory of 2788	2924	wyrcjrfv.exe	43
PID 2924 wrote to memory of 2788	2924	wyrcjrfv.exe	43
PID 2924 wrote to memory of 2788	2924	wyrcjrfv.exe	43
PID 2924 wrote to memory of 2788	2924	wyrcjrfv.exe	43
PID 2924 wrote to memory of 2788	2924	wyrcjrfv.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xmfcwoup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wyrcjrfv.exe" C:\Windows\SysWOW64\xmfcwoup\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xmfcwoup binPath= "C:\Windows\SysWOW64\xmfcwoup\wyrcjrfv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xmfcwoup "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xmfcwoup
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2440
- 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:2188

C:\Windows\SysWOW64\xmfcwoup\wyrcjrfv.exe
C:\Windows\SysWOW64\xmfcwoup\wyrcjrfv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2924
- 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:2788

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\wyrcjrfv.exe

Filesize
12.4MB

MD5
a840a24dba8a5b9fd02887151185c76b

SHA1
557e2a3ab6672729fb2ede340e8a273388247bfd

SHA256
da0f5b657bb4ebdda7ae18926483f6b7422d1f7b412de5bfe2963318132fcf5c

SHA512
e44b47e162712d27376e44bc67cf607a689070b80a48a3759b89c657dd0be44481b1f27a9d6b52741251edbba2ce0b467a334ef06a84de0a094c3ee2193e4a2d

Download Submit
memory/2568-6-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2568-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2568-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2568-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2788-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2924-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads