tofsee | ac07bd844dd88ff07f954b2a9fdf3a21fe90b78bb2866862ee5ff00e5604b8ee

General

Target

2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe
Size

13.6MB
MD5

d2a6285281b9251fad852e6674d627d5
SHA1

00bae2fe3cf6f832252f453b8b3f1373b563b13c
SHA256

ac07bd844dd88ff07f954b2a9fdf3a21fe90b78bb2866862ee5ff00e5604b8ee
SHA512

1ede58994358725fa808b164cafc53e6f0ec383e747575b912cd0fa983bd584aef0c254da32c4cbeedfc1cdc67139b2d9d7ae450ca396cf9a194aeaa4b57ff0f
SSDEEP

49152:2qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:2qtYc3

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
4304	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\gjlajgiv\ImagePath = "C:\\Windows\\SysWOW64\\gjlajgiv\\gjpjyjua.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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe

Deletes itself 1 IoCs

pid	Process
4736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1540	gjpjyjua.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1540 set thread context of 4736	1540	gjpjyjua.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4140	sc.exe
3248	sc.exe
2084	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
4992	1540	WerFault.exe	96
4024	3008	WerFault.exe	82

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	gjpjyjua.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	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	2025-02-01_d2a6285281b9251fad852e6674d627d5_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 3008 wrote to memory of 4300	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	86
PID 3008 wrote to memory of 4300	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	86
PID 3008 wrote to memory of 4300	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	86
PID 3008 wrote to memory of 3232	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	88
PID 3008 wrote to memory of 3232	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	88
PID 3008 wrote to memory of 3232	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	88
PID 3008 wrote to memory of 4140	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	90
PID 3008 wrote to memory of 4140	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	90
PID 3008 wrote to memory of 4140	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	90
PID 3008 wrote to memory of 3248	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	92
PID 3008 wrote to memory of 3248	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	92
PID 3008 wrote to memory of 3248	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	92
PID 3008 wrote to memory of 2084	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	94
PID 3008 wrote to memory of 2084	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	94
PID 3008 wrote to memory of 2084	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	94
PID 1540 wrote to memory of 4736	1540	gjpjyjua.exe	98
PID 1540 wrote to memory of 4736	1540	gjpjyjua.exe	98
PID 1540 wrote to memory of 4736	1540	gjpjyjua.exe	98
PID 3008 wrote to memory of 4304	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	97
PID 3008 wrote to memory of 4304	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	97
PID 3008 wrote to memory of 4304	3008	2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe	97
PID 1540 wrote to memory of 4736	1540	gjpjyjua.exe	98
PID 1540 wrote to memory of 4736	1540	gjpjyjua.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gjlajgiv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gjpjyjua.exe" C:\Windows\SysWOW64\gjlajgiv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gjlajgiv binPath= "C:\Windows\SysWOW64\gjlajgiv\gjpjyjua.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gjlajgiv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gjlajgiv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2084
- 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:4304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3008 -s 1028
  2⤵
  - Program crash
  PID:4024

C:\Windows\SysWOW64\gjlajgiv\gjpjyjua.exe
C:\Windows\SysWOW64\gjlajgiv\gjpjyjua.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_d2a6285281b9251fad852e6674d627d5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 532
  2⤵
  - Program crash
  PID:4992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3008 -ip 3008
1⤵
PID:3508

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1540 -ip 1540
1⤵
PID:5080

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\gjpjyjua.exe

Filesize
10.4MB

MD5
caa671f9a22c3f754001ba72a6d1819b

SHA1
b177e93d030d7d926b1e9e1b9b668827851c275b

SHA256
01d702797d385dc6f219a4ee6e06d5bc1277287b1143df83bcc4509fab7953ab

SHA512
a185dfcfa7ab516aea719a3c4c28ba5fce788cf27a01f4796789c6e2534dcfc1609169b71df4dd28707512f4c099b1201d01c309226d9ab12a9df1882370bc6d

Download Submit
memory/1540-8-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3008-1-0x00007FFF0A570000-0x00007FFF0A765000-memory.dmp

Filesize
2.0MB

Download
memory/3008-10-0x00007FFF0A570000-0x00007FFF0A765000-memory.dmp

Filesize
2.0MB

Download
memory/3008-9-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4736-6-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4736-11-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download
memory/4736-12-0x00000000009D0000-0x00000000009E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads