tofsee | 3731776b9bb93158e5eeaf11d9d13588fd9509d0879fad0fc6aff8a20c6ce6d2

General

Target

2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe
Size

11.6MB
MD5

baa3d4ecef961095880f238de0e0be22
SHA1

c59ca1d96a298bb7cd32d8e74b5f0e6b9a8ec2c3
SHA256

3731776b9bb93158e5eeaf11d9d13588fd9509d0879fad0fc6aff8a20c6ce6d2
SHA512

9967fd6125d449931142378d77af25f8ef3edf7eab6341ecdef79ed6cb7c7395b216aa59768471dcd105150615e4f78239be45e4a7ba4dbed4ec2b524df08c75
SSDEEP

49152:GqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:GqtYc3

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
2000	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\hpfxfhfz\ImagePath = "C:\\Windows\\SysWOW64\\hpfxfhfz\\hjekdqa.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe

Deletes itself 1 IoCs

pid	Process
2728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1108	hjekdqa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1108 set thread context of 2728	1108	hjekdqa.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4872	sc.exe
2500	sc.exe
4044	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
1880	412	WerFault.exe	83
1208	1108	WerFault.exe	97

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	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hjekdqa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 3548	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	87
PID 412 wrote to memory of 3548	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	87
PID 412 wrote to memory of 3548	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	87
PID 412 wrote to memory of 1896	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	89
PID 412 wrote to memory of 1896	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	89
PID 412 wrote to memory of 1896	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	89
PID 412 wrote to memory of 2500	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	91
PID 412 wrote to memory of 2500	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	91
PID 412 wrote to memory of 2500	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	91
PID 412 wrote to memory of 4044	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	93
PID 412 wrote to memory of 4044	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	93
PID 412 wrote to memory of 4044	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	93
PID 412 wrote to memory of 4872	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	95
PID 412 wrote to memory of 4872	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	95
PID 412 wrote to memory of 4872	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	95
PID 412 wrote to memory of 2000	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	98
PID 412 wrote to memory of 2000	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	98
PID 412 wrote to memory of 2000	412	2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe	98
PID 1108 wrote to memory of 2728	1108	hjekdqa.exe	101
PID 1108 wrote to memory of 2728	1108	hjekdqa.exe	101
PID 1108 wrote to memory of 2728	1108	hjekdqa.exe	101
PID 1108 wrote to memory of 2728	1108	hjekdqa.exe	101
PID 1108 wrote to memory of 2728	1108	hjekdqa.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hpfxfhfz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hjekdqa.exe" C:\Windows\SysWOW64\hpfxfhfz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hpfxfhfz binPath= "C:\Windows\SysWOW64\hpfxfhfz\hjekdqa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hpfxfhfz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hpfxfhfz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4872
- 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:2000
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 412 -s 1232
  2⤵
  - Program crash
  PID:1880

C:\Windows\SysWOW64\hpfxfhfz\hjekdqa.exe
C:\Windows\SysWOW64\hpfxfhfz\hjekdqa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_baa3d4ecef961095880f238de0e0be22_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1108 -s 532
  2⤵
  - Program crash
  PID:1208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 412 -ip 412
1⤵
PID:1348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 1108 -ip 1108
1⤵
PID:1212

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\hjekdqa.exe

Filesize
13.2MB

MD5
02577feabbae5a6cced18fe55be24b83

SHA1
375768302cfbf7082178ba7f02cb1589d4c52667

SHA256
ddf834663f80601bbcb921d17ef5904d405a28ff68fbf21ce521794c0f4a34f4

SHA512
77c634c4b339387c0c16bc69f3c49dc1b2fbae3bc1a2ef78153d2b316710f285345692b646a9da1f0e6da7c7f8d33c421134a8b6cfefca7c239f74ffbaf025e8

Download Submit
memory/412-1-0x0000000003060000-0x0000000003160000-memory.dmp

Filesize
1024KB

Download
memory/412-2-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

Filesize
76KB

Download
memory/412-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/412-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/412-12-0x0000000002EE0000-0x0000000002EF3000-memory.dmp

Filesize
76KB

Download
memory/412-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/1108-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2728-8-0x0000000001240000-0x0000000001255000-memory.dmp

Filesize
84KB

Download
memory/2728-14-0x0000000001240000-0x0000000001255000-memory.dmp

Filesize
84KB

Download
memory/2728-15-0x0000000001240000-0x0000000001255000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads