tofsee | 1a468167a1d9a761cc209f759ac4563597cd8ebce754eae4ac80db2ad7a007e3

General

Target

2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe
Size

13.0MB
MD5

dee5a4fb48225157ac2c82f3fe35cb19
SHA1

9e94fa8c4967b017998c43b29e4ca327afb338fb
SHA256

1a468167a1d9a761cc209f759ac4563597cd8ebce754eae4ac80db2ad7a007e3
SHA512

786e30ff163598a9523ee3f38b17327292a670c1ec2a3e60f1a878db512e7016564ec4563e165ae451243bb0f60cbaa89c4fcad1e9aeaa91d213a9fc77ca0547
SSDEEP

24576:qpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttk:+ooe

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
3628	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\fkpusygw\ImagePath = "C:\\Windows\\SysWOW64\\fkpusygw\\soggdsrf.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	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe

Deletes itself 1 IoCs

pid	Process
3916	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2304	soggdsrf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 3916	2304	soggdsrf.exe	109

Launches sc.exe 3 IoCs

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

pid	Process
1052	sc.exe
4316	sc.exe
960	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
772	2820	WerFault.exe	83
3212	2304	WerFault.exe	102

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	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	soggdsrf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_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 2820 wrote to memory of 4712	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	91
PID 2820 wrote to memory of 4712	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	91
PID 2820 wrote to memory of 4712	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	91
PID 2820 wrote to memory of 4972	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	93
PID 2820 wrote to memory of 4972	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	93
PID 2820 wrote to memory of 4972	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	93
PID 2820 wrote to memory of 1052	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	96
PID 2820 wrote to memory of 1052	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	96
PID 2820 wrote to memory of 1052	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	96
PID 2820 wrote to memory of 4316	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	98
PID 2820 wrote to memory of 4316	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	98
PID 2820 wrote to memory of 4316	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	98
PID 2820 wrote to memory of 960	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	100
PID 2820 wrote to memory of 960	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	100
PID 2820 wrote to memory of 960	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	100
PID 2820 wrote to memory of 3628	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	103
PID 2820 wrote to memory of 3628	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	103
PID 2820 wrote to memory of 3628	2820	2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe	103
PID 2304 wrote to memory of 3916	2304	soggdsrf.exe	109
PID 2304 wrote to memory of 3916	2304	soggdsrf.exe	109
PID 2304 wrote to memory of 3916	2304	soggdsrf.exe	109
PID 2304 wrote to memory of 3916	2304	soggdsrf.exe	109
PID 2304 wrote to memory of 3916	2304	soggdsrf.exe	109

C:\Users\Admin\AppData\Local\Temp\2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fkpusygw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\soggdsrf.exe" C:\Windows\SysWOW64\fkpusygw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fkpusygw binPath= "C:\Windows\SysWOW64\fkpusygw\soggdsrf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fkpusygw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fkpusygw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:960
- 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:3628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 1044
  2⤵
  - Program crash
  PID:772

C:\Windows\SysWOW64\fkpusygw\soggdsrf.exe
C:\Windows\SysWOW64\fkpusygw\soggdsrf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_dee5a4fb48225157ac2c82f3fe35cb19_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 552
  2⤵
  - Program crash
  PID:3212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2820 -ip 2820
1⤵
PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2304 -ip 2304
1⤵
PID:2080

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\soggdsrf.exe

Filesize
13.1MB

MD5
6074949becb792940ccec02bf920d3b6

SHA1
17add2769d3bc9cd50dea9d04e08450147e46c18

SHA256
2927b99b9241996c906ae26396f09b99f68fbfffd718271f26cf6cdeee4ea97c

SHA512
0f7b361ccca1b96c4395008c99bbb333590b4ad4b7a508351da34d6735a0770669d2ab2c5b4db1419c3daa3a6459583628ccaafc3cbf08d53f9720c02f8da791

Download Submit
memory/2304-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2304-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2304-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2304-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2820-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2820-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2820-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2820-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2820-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/3916-14-0x0000000000BC0000-0x0000000000BD5000-memory.dmp

Filesize
84KB

Download
memory/3916-16-0x0000000000BC0000-0x0000000000BD5000-memory.dmp

Filesize
84KB

Download
memory/3916-17-0x0000000000BC0000-0x0000000000BD5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads