tofsee | cc9bf7bab2fa10c5b0cdf790586f29f15e3112bd6aa289a2175a1e5aca190993

General

Target

2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe
Size

13.6MB
MD5

fe68e1702fa55d9c6125bbeb3026a5b8
SHA1

3a1cac180b422f57c7a1576baa3f16f09f6c7b7e
SHA256

cc9bf7bab2fa10c5b0cdf790586f29f15e3112bd6aa289a2175a1e5aca190993
SHA512

03dd144e41475bc9c51122571aa9c78304ea8d4b11c1b28d2028813c45392862d8608ac6aa2c21ecd17e4350730f462fc3fb25a4cb2516744e3a166ebf0e33a4
SSDEEP

24576:REfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:qfot

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
992	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\njmarctl\ImagePath = "C:\\Windows\\SysWOW64\\njmarctl\\dcqsgdew.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe

Deletes itself 1 IoCs

pid	Process
2452	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2596	dcqsgdew.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 2452	2596	dcqsgdew.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
3788	sc.exe
4632	sc.exe
4248	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3784	1356	WerFault.exe	82
4768	2596	WerFault.exe	96

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	dcqsgdew.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 444	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	84
PID 1356 wrote to memory of 444	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	84
PID 1356 wrote to memory of 444	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	84
PID 1356 wrote to memory of 1080	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	86
PID 1356 wrote to memory of 1080	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	86
PID 1356 wrote to memory of 1080	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	86
PID 1356 wrote to memory of 4248	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	88
PID 1356 wrote to memory of 4248	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	88
PID 1356 wrote to memory of 4248	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	88
PID 1356 wrote to memory of 3788	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	90
PID 1356 wrote to memory of 3788	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	90
PID 1356 wrote to memory of 3788	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	90
PID 1356 wrote to memory of 4632	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	94
PID 1356 wrote to memory of 4632	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	94
PID 1356 wrote to memory of 4632	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	94
PID 1356 wrote to memory of 992	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	97
PID 1356 wrote to memory of 992	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	97
PID 1356 wrote to memory of 992	1356	2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe	97
PID 2596 wrote to memory of 2452	2596	dcqsgdew.exe	107
PID 2596 wrote to memory of 2452	2596	dcqsgdew.exe	107
PID 2596 wrote to memory of 2452	2596	dcqsgdew.exe	107
PID 2596 wrote to memory of 2452	2596	dcqsgdew.exe	107
PID 2596 wrote to memory of 2452	2596	dcqsgdew.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\njmarctl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dcqsgdew.exe" C:\Windows\SysWOW64\njmarctl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create njmarctl binPath= "C:\Windows\SysWOW64\njmarctl\dcqsgdew.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description njmarctl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start njmarctl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4632
- 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:992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 1248
  2⤵
  - Program crash
  PID:3784

C:\Windows\SysWOW64\njmarctl\dcqsgdew.exe
C:\Windows\SysWOW64\njmarctl\dcqsgdew.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_fe68e1702fa55d9c6125bbeb3026a5b8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 508
  2⤵
  - Program crash
  PID:4768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1356 -ip 1356
1⤵
PID:4072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2596 -ip 2596
1⤵
PID:2456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\dcqsgdew.exe

Filesize
12.0MB

MD5
7e112d921036212b3eb6fefd24fdb1b4

SHA1
0ff086464b06c543125600d1ee84d10c0de75bef

SHA256
60c47296a75f56eff2ef7169528bd3b7556c2c6fdf4fa2547096a3eaf950dbdf

SHA512
ea6ebebb42d6451304ad7f6e71afb61b2bbeb65d19f008576ea2c4cabaa1ec42579767d4dc0d6e40cc72887467f3b3f7fc9e10067464c018e238c771079f49e2

Download Submit
memory/1356-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1356-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1356-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/1356-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/1356-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1356-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/2452-14-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2452-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2452-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2596-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2596-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads