tofsee | cc818e8fc4d68e1d87fd4ba4e8c6cef784b1d0e0d64c2474b9dc5943287f2c6b

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 19:50

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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\veuvxmuu = "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
2460	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\veuvxmuu\ImagePath = "C:\\Windows\\SysWOW64\\veuvxmuu\\jfxxujiw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2280	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	jfxxujiw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2280	2708	jfxxujiw.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3056	sc.exe
2944	sc.exe
2996	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	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jfxxujiw.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2744	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 3064 wrote to memory of 2744	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 3064 wrote to memory of 2744	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 3064 wrote to memory of 2744	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	30
PID 3064 wrote to memory of 2692	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 3064 wrote to memory of 2692	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 3064 wrote to memory of 2692	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 3064 wrote to memory of 2692	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	32
PID 3064 wrote to memory of 3056	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 3064 wrote to memory of 3056	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 3064 wrote to memory of 3056	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 3064 wrote to memory of 3056	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	34
PID 3064 wrote to memory of 2944	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 3064 wrote to memory of 2944	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 3064 wrote to memory of 2944	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 3064 wrote to memory of 2944	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	36
PID 3064 wrote to memory of 2996	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 3064 wrote to memory of 2996	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 3064 wrote to memory of 2996	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 3064 wrote to memory of 2996	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	38
PID 3064 wrote to memory of 2460	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	41
PID 3064 wrote to memory of 2460	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	41
PID 3064 wrote to memory of 2460	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	41
PID 3064 wrote to memory of 2460	3064	2025-01-09_c15b4cfd4cea02fc55d57af8bf070a36_mafia.exe	41
PID 2708 wrote to memory of 2280	2708	jfxxujiw.exe	43
PID 2708 wrote to memory of 2280	2708	jfxxujiw.exe	43
PID 2708 wrote to memory of 2280	2708	jfxxujiw.exe	43
PID 2708 wrote to memory of 2280	2708	jfxxujiw.exe	43
PID 2708 wrote to memory of 2280	2708	jfxxujiw.exe	43
PID 2708 wrote to memory of 2280	2708	jfxxujiw.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:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\veuvxmuu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jfxxujiw.exe" C:\Windows\SysWOW64\veuvxmuu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create veuvxmuu binPath= "C:\Windows\SysWOW64\veuvxmuu\jfxxujiw.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:3056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description veuvxmuu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start veuvxmuu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2996
- 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:2460

C:\Windows\SysWOW64\veuvxmuu\jfxxujiw.exe
C:\Windows\SysWOW64\veuvxmuu\jfxxujiw.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:2708
- 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:2280

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\jfxxujiw.exe

Filesize
11.8MB

MD5
17b24cef453939872f3a7e286a5bb7a9

SHA1
f3d021e2100625fb84de7f82118f3f104df4e213

SHA256
91a3143f1437ed0bf156d4b0a673fe43c41ba56c2466042f3b4b4a77156f8cf6

SHA512
0de0670a35b2071bbfc43ea632fa1aa9cc6fe74436fbcbd1df73ff681660d2258ac63f9c9a98b28dda2f0865651113c6737219a65c3057b3c5b2b06598e9bb4e

Download Submit
memory/2280-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2280-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2280-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2280-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2280-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3064-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3064-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3064-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3064-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3064-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads