tofsee | b1d692c506ccd27b91a5ef360d54d99614cbeeb9924dbf3399988b6263c82dc8

General

Target

2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe
Size

13.5MB
MD5

58a712f701b42cf3d44683dea667ee33
SHA1

70c4494802bb7192ea83cc515706bdc62b13cf67
SHA256

b1d692c506ccd27b91a5ef360d54d99614cbeeb9924dbf3399988b6263c82dc8
SHA512

50c9e3b96ce7b98fe0d0e2f1cce98ed13b4de9dd30ef2b21fd1800d41ff835b1fc68d3f9bf72e565e006c9c2a12cc0dbfba796a905fbb9d81a53976ad745e59c
SSDEEP

6144:OLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ1:fTYe+D2jFu+iZoUFhAz

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
1872	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\wkbbpysv\ImagePath = "C:\\Windows\\SysWOW64\\wkbbpysv\\ihvxlijb.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe

Deletes itself 1 IoCs

pid	Process
1484	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3124	ihvxlijb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3124 set thread context of 1484	3124	ihvxlijb.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
2628	sc.exe
2800	sc.exe
3412	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4800	4588	WerFault.exe	81
1764	3124	WerFault.exe	92

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ihvxlijb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_58a712f701b42cf3d44683dea667ee33_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	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 4588 wrote to memory of 4408	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	82
PID 4588 wrote to memory of 4408	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	82
PID 4588 wrote to memory of 4408	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	82
PID 4588 wrote to memory of 1680	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	84
PID 4588 wrote to memory of 1680	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	84
PID 4588 wrote to memory of 1680	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	84
PID 4588 wrote to memory of 2628	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	86
PID 4588 wrote to memory of 2628	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	86
PID 4588 wrote to memory of 2628	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	86
PID 4588 wrote to memory of 2800	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	88
PID 4588 wrote to memory of 2800	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	88
PID 4588 wrote to memory of 2800	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	88
PID 4588 wrote to memory of 3412	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	90
PID 4588 wrote to memory of 3412	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	90
PID 4588 wrote to memory of 3412	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	90
PID 3124 wrote to memory of 1484	3124	ihvxlijb.exe	93
PID 3124 wrote to memory of 1484	3124	ihvxlijb.exe	93
PID 3124 wrote to memory of 1484	3124	ihvxlijb.exe	93
PID 3124 wrote to memory of 1484	3124	ihvxlijb.exe	93
PID 3124 wrote to memory of 1484	3124	ihvxlijb.exe	93
PID 4588 wrote to memory of 1872	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	95
PID 4588 wrote to memory of 1872	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	95
PID 4588 wrote to memory of 1872	4588	2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wkbbpysv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ihvxlijb.exe" C:\Windows\SysWOW64\wkbbpysv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wkbbpysv binPath= "C:\Windows\SysWOW64\wkbbpysv\ihvxlijb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wkbbpysv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wkbbpysv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3412
- 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:1872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 1036
  2⤵
  - Program crash
  PID:4800

C:\Windows\SysWOW64\wkbbpysv\ihvxlijb.exe
C:\Windows\SysWOW64\wkbbpysv\ihvxlijb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_58a712f701b42cf3d44683dea667ee33_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 512
  2⤵
  - Program crash
  PID:1764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4588 -ip 4588
1⤵
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3124 -ip 3124
1⤵
PID:804

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\ihvxlijb.exe

Filesize
11.1MB

MD5
f0124dfe316b48f00843544fc65b7696

SHA1
fefb6213a48339ad7c362e82c646fc3a6067a37f

SHA256
6476a2cda255ce0d5238e2308927458cf0c85671cf094b4c684136e872d8ad17

SHA512
5167d144858280c83e2a78dfbe63dd9557bf32cc2254937ed7b7536e1457ff2992414e08cf8ca26da4aa74acc1dfff24f4b78db68997c651ecd99455276406df

Download Submit
memory/1484-12-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1484-23-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1484-22-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1484-21-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/1484-15-0x0000000000990000-0x00000000009A5000-memory.dmp

Filesize
84KB

Download
memory/3124-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3124-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3124-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3124-20-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4588-11-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/4588-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4588-18-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download
memory/4588-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4588-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/4588-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4588-2-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads