tofsee | a920480bd38fe3e88cdc91dce7e3b736e3416d5e3d0e62cf6bc82962f4e5271a

General

Target

2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe
Size

14.0MB
MD5

e420639e928141fb52e3e7fadc0dbc29
SHA1

ea45e1fd71e302a70f2f84d6fde8d99527070e64
SHA256

a920480bd38fe3e88cdc91dce7e3b736e3416d5e3d0e62cf6bc82962f4e5271a
SHA512

d0d6389052dd39c1016acb39e49f5b7952dedabbfd3861a3ff29b9f007cd2b1c7dd608013d2f3f3dcd5e47294948d7f94795d0fe3b1669e54191b544202e4b63
SSDEEP

49152:jLFuiE888888888888888888888888888888888888888888888888888888888s:jLM

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
47	4340	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2196	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\rdvbtcrj\ImagePath = "C:\\Windows\\SysWOW64\\rdvbtcrj\\irlqihcy.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-1-5-21-3311063739-2594902809-44604183-1000\Control Panel\International\Geo\Nation	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe

Deletes itself 1 IoCs

pid	Process
4816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4776	irlqihcy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4776 set thread context of 4816	4776	irlqihcy.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1920	sc.exe
2180	sc.exe
2900	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

System Location Discovery: System Language Discovery 1 TTPs 10 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	irlqihcy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4088	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 3032	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	89
PID 3400 wrote to memory of 3032	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	89
PID 3400 wrote to memory of 3032	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	89
PID 3400 wrote to memory of 3864	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	91
PID 3400 wrote to memory of 3864	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	91
PID 3400 wrote to memory of 3864	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	91
PID 3400 wrote to memory of 1920	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	93
PID 3400 wrote to memory of 1920	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	93
PID 3400 wrote to memory of 1920	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	93
PID 3400 wrote to memory of 2180	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	95
PID 3400 wrote to memory of 2180	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	95
PID 3400 wrote to memory of 2180	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	95
PID 3400 wrote to memory of 2900	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	97
PID 3400 wrote to memory of 2900	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	97
PID 3400 wrote to memory of 2900	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	97
PID 3400 wrote to memory of 2196	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	100
PID 3400 wrote to memory of 2196	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	100
PID 3400 wrote to memory of 2196	3400	2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe	100
PID 4776 wrote to memory of 4816	4776	irlqihcy.exe	102
PID 4776 wrote to memory of 4816	4776	irlqihcy.exe	102
PID 4776 wrote to memory of 4816	4776	irlqihcy.exe	102
PID 4776 wrote to memory of 4816	4776	irlqihcy.exe	102
PID 4776 wrote to memory of 4816	4776	irlqihcy.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rdvbtcrj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\irlqihcy.exe" C:\Windows\SysWOW64\rdvbtcrj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rdvbtcrj binPath= "C:\Windows\SysWOW64\rdvbtcrj\irlqihcy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rdvbtcrj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rdvbtcrj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2196

C:\Windows\SysWOW64\rdvbtcrj\irlqihcy.exe
C:\Windows\SysWOW64\rdvbtcrj\irlqihcy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_e420639e928141fb52e3e7fadc0dbc29_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4816

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDk5ODM4NDc1Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4088

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\irlqihcy.exe

Filesize
12.0MB

MD5
f5d75db0ba3605612b8c8db03ff51fb5

SHA1
1bb337d517414d63b8f89a91352d94d46830ea57

SHA256
cc3abc52e19a524386871ee3d2ab172a56ea57451bdd04d63d3ee8790860cea2

SHA512
7319debe9b6b2a36eb16a934d10b94def988b1f855e6cd0cee116139d5eebc67661813c9f3c2ead7e7ec3fba45fd002a9033738ee603172a1069ffc236c8662c

Download Submit
memory/3400-1-0x00000000030F0000-0x00000000031F0000-memory.dmp

Filesize
1024KB

Download
memory/3400-2-0x0000000002ED0000-0x0000000002EE3000-memory.dmp

Filesize
76KB

Download
memory/3400-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3400-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3400-9-0x0000000002ED0000-0x0000000002EE3000-memory.dmp

Filesize
76KB

Download
memory/3400-7-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/4776-14-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/4816-11-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4816-13-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download
memory/4816-15-0x0000000000580000-0x0000000000595000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads