tofsee | 012b2dc2827ee31a0b8ccef828799f12e23a8d9c3d2915289f60189b4af51180

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
29/01/2025, 17:28

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General

Target

2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe
Size

11.8MB
MD5

5c5fc14632ee6c8f8bd6fb6664f59b29
SHA1

3b59669ccf60c1b2800aca7a2112e48623f2fcb4
SHA256

012b2dc2827ee31a0b8ccef828799f12e23a8d9c3d2915289f60189b4af51180
SHA512

6800f18817a67d2d92afdcb00fb9907d11d0206ac6e82264d756fb2a11c62b10710222b8b4df51384f0f3a23f97c90c2f5a3cc9b5989ff2d8f76231b92efca39
SSDEEP

196608:LyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:mXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn

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\qrsjnrbe = "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
2844	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\qrsjnrbe\ImagePath = "C:\\Windows\\SysWOW64\\qrsjnrbe\\dycukvxv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2940	dycukvxv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2940 set thread context of 2784	2940	dycukvxv.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2184	sc.exe
2372	sc.exe
2812	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.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	dycukvxv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 1728	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	31
PID 320 wrote to memory of 1728	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	31
PID 320 wrote to memory of 1728	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	31
PID 320 wrote to memory of 1728	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	31
PID 320 wrote to memory of 2640	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	33
PID 320 wrote to memory of 2640	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	33
PID 320 wrote to memory of 2640	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	33
PID 320 wrote to memory of 2640	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	33
PID 320 wrote to memory of 2184	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	35
PID 320 wrote to memory of 2184	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	35
PID 320 wrote to memory of 2184	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	35
PID 320 wrote to memory of 2184	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	35
PID 320 wrote to memory of 2372	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	37
PID 320 wrote to memory of 2372	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	37
PID 320 wrote to memory of 2372	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	37
PID 320 wrote to memory of 2372	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	37
PID 320 wrote to memory of 2812	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	39
PID 320 wrote to memory of 2812	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	39
PID 320 wrote to memory of 2812	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	39
PID 320 wrote to memory of 2812	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	39
PID 2940 wrote to memory of 2784	2940	dycukvxv.exe	42
PID 2940 wrote to memory of 2784	2940	dycukvxv.exe	42
PID 2940 wrote to memory of 2784	2940	dycukvxv.exe	42
PID 2940 wrote to memory of 2784	2940	dycukvxv.exe	42
PID 2940 wrote to memory of 2784	2940	dycukvxv.exe	42
PID 2940 wrote to memory of 2784	2940	dycukvxv.exe	42
PID 320 wrote to memory of 2844	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	43
PID 320 wrote to memory of 2844	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	43
PID 320 wrote to memory of 2844	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	43
PID 320 wrote to memory of 2844	320	2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qrsjnrbe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dycukvxv.exe" C:\Windows\SysWOW64\qrsjnrbe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qrsjnrbe binPath= "C:\Windows\SysWOW64\qrsjnrbe\dycukvxv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qrsjnrbe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qrsjnrbe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- 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:2844

C:\Windows\SysWOW64\qrsjnrbe\dycukvxv.exe
C:\Windows\SysWOW64\qrsjnrbe\dycukvxv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5c5fc14632ee6c8f8bd6fb6664f59b29_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2940
- 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:2784

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\dycukvxv.exe

Filesize
10.6MB

MD5
e8c8745d58f0f49814224cf6aed507c7

SHA1
31aa23f311e939bc3935872b65f1d2d44657a20f

SHA256
39e4bdaad2f3d3e6bbb1dbc8841c0127116485ad07035b3cccecb51263b549d1

SHA512
4a140dbb19d93501a67a0c5da2fed52231363ac2e5b534fbac4085798464e41f44cdd21960e40c9482674b5df6513ee2cf6fc389030bf620e0a03b58044066b3

Download Submit
memory/320-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/320-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/320-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/320-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/320-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/320-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/320-16-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2784-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2940-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads