tofsee | 4bf62ba46395dc870ed3ec3ed2c0ec4589ceb8cd9d07bc002baa9f3b196f20ab

Analysis

max time kernel
145s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 19:31

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General

Target

2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe
Size

11.0MB
MD5

38e7992204b4ed4f58fe205bb8da7f3f
SHA1

9f84dae5021806ea9b1cbbe70b485d140b47201f
SHA256

4bf62ba46395dc870ed3ec3ed2c0ec4589ceb8cd9d07bc002baa9f3b196f20ab
SHA512

5696c9c8aea89bd4a23bce623dbaceb31796bda3a4095443ef245c8b508e1b371f2dfe37b7e50f13e82473ae4755d1008e7ab8e340945eba95178e9206a5804d
SSDEEP

3072:sLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:JOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\mdxjljhb = "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
2800	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\mdxjljhb\ImagePath = "C:\\Windows\\SysWOW64\\mdxjljhb\\yplsjimq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2288	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2304	yplsjimq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 2288	2304	yplsjimq.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2240	sc.exe
2780	sc.exe
2976	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	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	yplsjimq.exe
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	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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2076	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	31
PID 2364 wrote to memory of 2076	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	31
PID 2364 wrote to memory of 2076	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	31
PID 2364 wrote to memory of 2076	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	31
PID 2364 wrote to memory of 1648	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	33
PID 2364 wrote to memory of 1648	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	33
PID 2364 wrote to memory of 1648	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	33
PID 2364 wrote to memory of 1648	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	33
PID 2364 wrote to memory of 2240	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	35
PID 2364 wrote to memory of 2240	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	35
PID 2364 wrote to memory of 2240	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	35
PID 2364 wrote to memory of 2240	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	35
PID 2364 wrote to memory of 2780	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	37
PID 2364 wrote to memory of 2780	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	37
PID 2364 wrote to memory of 2780	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	37
PID 2364 wrote to memory of 2780	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	37
PID 2364 wrote to memory of 2976	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	39
PID 2364 wrote to memory of 2976	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	39
PID 2364 wrote to memory of 2976	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	39
PID 2364 wrote to memory of 2976	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	39
PID 2304 wrote to memory of 2288	2304	yplsjimq.exe	42
PID 2304 wrote to memory of 2288	2304	yplsjimq.exe	42
PID 2304 wrote to memory of 2288	2304	yplsjimq.exe	42
PID 2304 wrote to memory of 2288	2304	yplsjimq.exe	42
PID 2304 wrote to memory of 2288	2304	yplsjimq.exe	42
PID 2304 wrote to memory of 2288	2304	yplsjimq.exe	42
PID 2364 wrote to memory of 2800	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	43
PID 2364 wrote to memory of 2800	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	43
PID 2364 wrote to memory of 2800	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	43
PID 2364 wrote to memory of 2800	2364	2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mdxjljhb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yplsjimq.exe" C:\Windows\SysWOW64\mdxjljhb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mdxjljhb binPath= "C:\Windows\SysWOW64\mdxjljhb\yplsjimq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mdxjljhb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mdxjljhb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2976
- 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:2800

C:\Windows\SysWOW64\mdxjljhb\yplsjimq.exe
C:\Windows\SysWOW64\mdxjljhb\yplsjimq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_38e7992204b4ed4f58fe205bb8da7f3f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- 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:2288

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\yplsjimq.exe

Filesize
12.9MB

MD5
3732ed8b68ce4eb8244f67ef2a4ef9f6

SHA1
f661da1cd6777b7d2ca33c2aaf3a128cd4fe2d91

SHA256
fc232dbbb4895ab9b1ec0fe26672596bb5b4c0b2e4a172dbc30b85b8eaaacb88

SHA512
6bea48a7fafd2795f3ea5b9a28da9c04144a20e5dd4d0871f9817e1556ce6c28ad60d915307de9760655f690c3da904ae2fa9a4acdcaa6bd09639ce7a200c551

Download Submit
memory/2288-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2288-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2288-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2288-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2288-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2304-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2364-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2364-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2364-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2364-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2364-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2364-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads