tofsee | 459bbacf3bf7e2cf69859f33df878638d43368244a711f55e602ee69f623ee23

General

Target

2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe
Size

13.7MB
MD5

a91e967e7f944cbbfc94c3ce18fe1056
SHA1

f91a5deba93700fc9a2daa53e4fa96f856da6c7f
SHA256

459bbacf3bf7e2cf69859f33df878638d43368244a711f55e602ee69f623ee23
SHA512

ad9a754b1fe8ab04d0b60789165d8cd605531a2d5a3c39c04100c1a885f9d618ff3d30fc821c10cf6e6fcf14325827183448a65b696e7c00b7c909e4d74b84ba
SSDEEP

6144:jLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQF:YTYe+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
2364	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\klseqvty\ImagePath = "C:\\Windows\\SysWOW64\\klseqvty\\pysxpojf.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe

Deletes itself 1 IoCs

pid	Process
3132	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1780	pysxpojf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1780 set thread context of 3132	1780	pysxpojf.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4988	sc.exe
3180	sc.exe
3928	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
4228	224	WerFault.exe	81
3040	1780	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pysxpojf.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	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	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 1616	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	82
PID 224 wrote to memory of 1616	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	82
PID 224 wrote to memory of 1616	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	82
PID 224 wrote to memory of 3328	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	84
PID 224 wrote to memory of 3328	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	84
PID 224 wrote to memory of 3328	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	84
PID 224 wrote to memory of 4988	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	86
PID 224 wrote to memory of 4988	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	86
PID 224 wrote to memory of 4988	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	86
PID 224 wrote to memory of 3180	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	88
PID 224 wrote to memory of 3180	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	88
PID 224 wrote to memory of 3180	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	88
PID 224 wrote to memory of 3928	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	90
PID 224 wrote to memory of 3928	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	90
PID 224 wrote to memory of 3928	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	90
PID 224 wrote to memory of 2364	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	93
PID 224 wrote to memory of 2364	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	93
PID 224 wrote to memory of 2364	224	2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe	93
PID 1780 wrote to memory of 3132	1780	pysxpojf.exe	98
PID 1780 wrote to memory of 3132	1780	pysxpojf.exe	98
PID 1780 wrote to memory of 3132	1780	pysxpojf.exe	98
PID 1780 wrote to memory of 3132	1780	pysxpojf.exe	98
PID 1780 wrote to memory of 3132	1780	pysxpojf.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\klseqvty\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pysxpojf.exe" C:\Windows\SysWOW64\klseqvty\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create klseqvty binPath= "C:\Windows\SysWOW64\klseqvty\pysxpojf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description klseqvty "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start klseqvty
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3928
- 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:2364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 1036
  2⤵
  - Program crash
  PID:4228

C:\Windows\SysWOW64\klseqvty\pysxpojf.exe
C:\Windows\SysWOW64\klseqvty\pysxpojf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_a91e967e7f944cbbfc94c3ce18fe1056_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3132
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 516
  2⤵
  - Program crash
  PID:3040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 224 -ip 224
1⤵
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1780 -ip 1780
1⤵
PID:2936

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\pysxpojf.exe

Filesize
12.5MB

MD5
292cfcc3e02ebd83178d5a0848950c4d

SHA1
4186ba02243e24ef1a29cc6facf4358527e48ba6

SHA256
8a6341ede7657bd81d35b78fe5f95ecf2d282be9ee50531dc0c1f9c3d6a243ed

SHA512
5bd18b801294f934175543fca55da50cd31c7fc2d67458740e538f28b03bcf039668a7d4d3dcb2d19374d31785e01792209d84f53df5b30bf5aa22224acdbbf2

Download Submit
memory/224-8-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/224-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

Filesize
1024KB

Download
memory/224-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/224-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/224-2-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/1780-11-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1780-12-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1780-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3132-13-0x0000000000540000-0x0000000000555000-memory.dmp

Filesize
84KB

Download
memory/3132-15-0x0000000000540000-0x0000000000555000-memory.dmp

Filesize
84KB

Download
memory/3132-16-0x0000000000540000-0x0000000000555000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads