tofsee | d0f978d82cbf058a5b7e9a21adfc71163c858079f27a0d3309562fe8079aea1b

General

Target

2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe
Size

10.8MB
MD5

9fba6bf500f826b16e4dd43e6829feec
SHA1

a6b38df45fb123a59ed0783030b33726c4ee74de
SHA256

d0f978d82cbf058a5b7e9a21adfc71163c858079f27a0d3309562fe8079aea1b
SHA512

7d477aceb07682037c2e5c99c96ada856dcfa41efe2271b214e2f93f87ef64ebaf7c05dcc34a7e8c3065541558e5231068c7284674c531c7689d04274ac9b9b5
SSDEEP

24576:E6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQY:pWdLQk

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
392	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\hkncicog\ImagePath = "C:\\Windows\\SysWOW64\\hkncicog\\kxjgzmrb.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe

Deletes itself 1 IoCs

pid	Process
1296	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3992	kxjgzmrb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3992 set thread context of 1296	3992	kxjgzmrb.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2132	sc.exe
2108	sc.exe
876	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
2636	400	WerFault.exe	82
972	3992	WerFault.exe	95

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	kxjgzmrb.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	cmd.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 2176	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	85
PID 400 wrote to memory of 2176	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	85
PID 400 wrote to memory of 2176	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	85
PID 400 wrote to memory of 4552	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	87
PID 400 wrote to memory of 4552	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	87
PID 400 wrote to memory of 4552	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	87
PID 400 wrote to memory of 2132	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	89
PID 400 wrote to memory of 2132	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	89
PID 400 wrote to memory of 2132	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	89
PID 400 wrote to memory of 2108	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	91
PID 400 wrote to memory of 2108	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	91
PID 400 wrote to memory of 2108	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	91
PID 400 wrote to memory of 876	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	93
PID 400 wrote to memory of 876	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	93
PID 400 wrote to memory of 876	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	93
PID 400 wrote to memory of 392	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	96
PID 400 wrote to memory of 392	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	96
PID 400 wrote to memory of 392	400	2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe	96
PID 3992 wrote to memory of 1296	3992	kxjgzmrb.exe	101
PID 3992 wrote to memory of 1296	3992	kxjgzmrb.exe	101
PID 3992 wrote to memory of 1296	3992	kxjgzmrb.exe	101
PID 3992 wrote to memory of 1296	3992	kxjgzmrb.exe	101
PID 3992 wrote to memory of 1296	3992	kxjgzmrb.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hkncicog\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kxjgzmrb.exe" C:\Windows\SysWOW64\hkncicog\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hkncicog binPath= "C:\Windows\SysWOW64\hkncicog\kxjgzmrb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hkncicog "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hkncicog
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:876
- 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:392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 576
  2⤵
  - Program crash
  PID:2636

C:\Windows\SysWOW64\hkncicog\kxjgzmrb.exe
C:\Windows\SysWOW64\hkncicog\kxjgzmrb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_9fba6bf500f826b16e4dd43e6829feec_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3992 -s 508
  2⤵
  - Program crash
  PID:972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 400 -ip 400
1⤵
PID:4456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3992 -ip 3992
1⤵
PID:3592

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\kxjgzmrb.exe

Filesize
10.1MB

MD5
6777fc4d44bfb7ecab53aec7d3db0e48

SHA1
388a3c00331e5119861dba268cefa1e4a160e911

SHA256
49682dfdaaae026720ac90e7a9017b2c05b6027a3d15a540342a8e26d6563e34

SHA512
7dce01e80e22adeadc175d45969a5f99e9a4682b729a4716467d9c1dd5fc19ebbe7c5a977d0cb1f9b5c6bccd28b7490755e4565172677dc9fa09aed266b71321

Download Submit
memory/400-8-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/400-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/400-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/400-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/400-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/400-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/1296-14-0x0000000000D30000-0x0000000000D45000-memory.dmp

Filesize
84KB

Download
memory/1296-16-0x0000000000D30000-0x0000000000D45000-memory.dmp

Filesize
84KB

Download
memory/1296-17-0x0000000000D30000-0x0000000000D45000-memory.dmp

Filesize
84KB

Download
memory/3992-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3992-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3992-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3992-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads