tofsee | 4f132c042659b37ff3aaf4866e2c62eb014feece0887c8818f5f05c8bcb33f24

General

Target

2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe
Size

12.7MB
MD5

7d495508a5b3f25d13551f894b2eeada
SHA1

68ed778b9b691967ab81634caeb62fce9eda70a1
SHA256

4f132c042659b37ff3aaf4866e2c62eb014feece0887c8818f5f05c8bcb33f24
SHA512

05088855ff1b835c55949d5a511e4a030436d1ea3a87e7ac4c86b1f4a818c58c8f6fe051cc0924bee8451cb11f65a6e0ce8f060c59af01fc68b7feb559b3ac98
SSDEEP

24576:ApomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt/:Moo

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3092	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\spjxifro\ImagePath = "C:\\Windows\\SysWOW64\\spjxifro\\foinfezv.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe

Deletes itself 1 IoCs

pid	Process
3144	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5056	foinfezv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5056 set thread context of 3144	5056	foinfezv.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
4532	sc.exe
220	sc.exe
1576	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1268	1548	WerFault.exe	83
4408	5056	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	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	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.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	foinfezv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 404	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	85
PID 1548 wrote to memory of 404	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	85
PID 1548 wrote to memory of 404	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	85
PID 1548 wrote to memory of 3028	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	87
PID 1548 wrote to memory of 3028	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	87
PID 1548 wrote to memory of 3028	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	87
PID 1548 wrote to memory of 4532	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	89
PID 1548 wrote to memory of 4532	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	89
PID 1548 wrote to memory of 4532	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	89
PID 1548 wrote to memory of 220	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	91
PID 1548 wrote to memory of 220	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	91
PID 1548 wrote to memory of 220	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	91
PID 1548 wrote to memory of 1576	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	93
PID 1548 wrote to memory of 1576	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	93
PID 1548 wrote to memory of 1576	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	93
PID 1548 wrote to memory of 3092	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	98
PID 1548 wrote to memory of 3092	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	98
PID 1548 wrote to memory of 3092	1548	2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe	98
PID 5056 wrote to memory of 3144	5056	foinfezv.exe	108
PID 5056 wrote to memory of 3144	5056	foinfezv.exe	108
PID 5056 wrote to memory of 3144	5056	foinfezv.exe	108
PID 5056 wrote to memory of 3144	5056	foinfezv.exe	108
PID 5056 wrote to memory of 3144	5056	foinfezv.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\spjxifro\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\foinfezv.exe" C:\Windows\SysWOW64\spjxifro\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create spjxifro binPath= "C:\Windows\SysWOW64\spjxifro\foinfezv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description spjxifro "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start spjxifro
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1576
- 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:3092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1548 -s 1028
  2⤵
  - Program crash
  PID:1268

C:\Windows\SysWOW64\spjxifro\foinfezv.exe
C:\Windows\SysWOW64\spjxifro\foinfezv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_7d495508a5b3f25d13551f894b2eeada_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 512
  2⤵
  - Program crash
  PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1548 -ip 1548
1⤵
PID:1196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5056 -ip 5056
1⤵
PID:2460

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\foinfezv.exe

Filesize
13.4MB

MD5
ffe10f97b44e6653e574a20d994e85da

SHA1
28f3d050fe2ae1959a2be494023fa7cc07947bf4

SHA256
142a2f74f0674b009f6a921708a81fa82535717dbbb25e17f59723a59bffa55c

SHA512
16746a960c91e299013c7e50dbeeb3ea78f36e876c9c662d7868a3820cc448655c64d825f081fd791176fa2b398dc6c687b900c9c18fe62e76de23cd69ebf835

Download Submit
memory/1548-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1548-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1548-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1548-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1548-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1548-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/3144-14-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3144-16-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3144-19-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/5056-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5056-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5056-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5056-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads