tofsee | cdb4d297bc53dcf661f9f58812fd44e494a64760a4dea483f8f89bee9791e2a4

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 20:38

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General

Target

2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe
Size

14.7MB
MD5

d6c6995eda7d5ae7cc5a7be0bb7eba8d
SHA1

1b27e433065b4364f360759dbacf351072b7bbe7
SHA256

cdb4d297bc53dcf661f9f58812fd44e494a64760a4dea483f8f89bee9791e2a4
SHA512

e8db003a63ab17dc3b4c566027e69899b00f4bd981905b5c9e642df9e79b3fc2c24bd3ed239af27a5f9920a9a9f70e31a4463c9884a03db0ad08380b14472738
SSDEEP

49152:wqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:wqtYc3

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\wqhuebrj = "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
2668	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\wqhuebrj\ImagePath = "C:\\Windows\\SysWOW64\\wqhuebrj\\eclmvrgc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	eclmvrgc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2760	2752	eclmvrgc.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2096	sc.exe
2448	sc.exe
2748	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	netsh.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	eclmvrgc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2084	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	31
PID 2492 wrote to memory of 2084	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	31
PID 2492 wrote to memory of 2084	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	31
PID 2492 wrote to memory of 2084	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	31
PID 2492 wrote to memory of 2336	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	33
PID 2492 wrote to memory of 2336	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	33
PID 2492 wrote to memory of 2336	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	33
PID 2492 wrote to memory of 2336	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	33
PID 2492 wrote to memory of 2096	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	35
PID 2492 wrote to memory of 2096	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	35
PID 2492 wrote to memory of 2096	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	35
PID 2492 wrote to memory of 2096	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	35
PID 2492 wrote to memory of 2448	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	37
PID 2492 wrote to memory of 2448	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	37
PID 2492 wrote to memory of 2448	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	37
PID 2492 wrote to memory of 2448	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	37
PID 2492 wrote to memory of 2748	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	39
PID 2492 wrote to memory of 2748	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	39
PID 2492 wrote to memory of 2748	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	39
PID 2492 wrote to memory of 2748	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	39
PID 2752 wrote to memory of 2760	2752	eclmvrgc.exe	42
PID 2752 wrote to memory of 2760	2752	eclmvrgc.exe	42
PID 2752 wrote to memory of 2760	2752	eclmvrgc.exe	42
PID 2752 wrote to memory of 2760	2752	eclmvrgc.exe	42
PID 2752 wrote to memory of 2760	2752	eclmvrgc.exe	42
PID 2752 wrote to memory of 2760	2752	eclmvrgc.exe	42
PID 2492 wrote to memory of 2668	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	43
PID 2492 wrote to memory of 2668	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	43
PID 2492 wrote to memory of 2668	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	43
PID 2492 wrote to memory of 2668	2492	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wqhuebrj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eclmvrgc.exe" C:\Windows\SysWOW64\wqhuebrj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wqhuebrj binPath= "C:\Windows\SysWOW64\wqhuebrj\eclmvrgc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wqhuebrj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wqhuebrj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2668

C:\Windows\SysWOW64\wqhuebrj\eclmvrgc.exe
C:\Windows\SysWOW64\wqhuebrj\eclmvrgc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2752
- 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:2760

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\eclmvrgc.exe

Filesize
10.2MB

MD5
9b7c823ae2126b55d2c42d2d665d4bdc

SHA1
ee5cd33b2668c6a94e2e77750bf5ec88ad6b6856

SHA256
ae1cbbf63e6551dacf902fdbe4a640a6a6dcfa180d185e02a6eeab4c9965db75

SHA512
e2f63157102151a7370c9b6cf5ec1ebe827410539545b7299db59c19b4c12d3fde482078488ea50cd9a0cc55f49ef21eb9c6b004eb43b6af5701916dabea0a71

Download Submit
memory/2492-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2492-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2492-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2492-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2492-1-0x0000000002F00000-0x0000000003000000-memory.dmp

Filesize
1024KB

Download
memory/2492-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2752-12-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2760-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2760-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads