tofsee | 9bf94e55f10d23d60a724a00c10f8782c10827846bc1e7315717c75b06439fc4

General

Target

2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe
Size

12.4MB
MD5

db987c25ac0b684de3ed6bbec118360d
SHA1

341aa3b8893a3661ac0d6ca3f5feca34d01306ba
SHA256

9bf94e55f10d23d60a724a00c10f8782c10827846bc1e7315717c75b06439fc4
SHA512

8d2627d560e5dc07d5e0d2756958b1405528a068d4c82bcaf8e45dc0bdf2b812c18e019de8239096955f44138542bf89085aea507427b2002f0cca281fe34730
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
1868	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\scoyklz\ImagePath = "C:\\Windows\\SysWOW64\\scoyklz\\ddepkljr.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe

Deletes itself 1 IoCs

pid	Process
3280	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	ddepkljr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 3280	2576	ddepkljr.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1404	sc.exe
4340	sc.exe
4316	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
4952	4012	WerFault.exe	81
212	2576	WerFault.exe	92

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	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.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	ddepkljr.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 4012 wrote to memory of 1956	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	82
PID 4012 wrote to memory of 1956	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	82
PID 4012 wrote to memory of 1956	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	82
PID 4012 wrote to memory of 820	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	84
PID 4012 wrote to memory of 820	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	84
PID 4012 wrote to memory of 820	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	84
PID 4012 wrote to memory of 4340	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	86
PID 4012 wrote to memory of 4340	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	86
PID 4012 wrote to memory of 4340	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	86
PID 4012 wrote to memory of 4316	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	88
PID 4012 wrote to memory of 4316	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	88
PID 4012 wrote to memory of 4316	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	88
PID 4012 wrote to memory of 1404	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	90
PID 4012 wrote to memory of 1404	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	90
PID 4012 wrote to memory of 1404	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	90
PID 4012 wrote to memory of 1868	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	93
PID 4012 wrote to memory of 1868	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	93
PID 4012 wrote to memory of 1868	4012	2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe	93
PID 2576 wrote to memory of 3280	2576	ddepkljr.exe	98
PID 2576 wrote to memory of 3280	2576	ddepkljr.exe	98
PID 2576 wrote to memory of 3280	2576	ddepkljr.exe	98
PID 2576 wrote to memory of 3280	2576	ddepkljr.exe	98
PID 2576 wrote to memory of 3280	2576	ddepkljr.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\scoyklz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ddepkljr.exe" C:\Windows\SysWOW64\scoyklz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create scoyklz binPath= "C:\Windows\SysWOW64\scoyklz\ddepkljr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description scoyklz "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 scoyklz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1404
- 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:1868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4012 -s 1288
  2⤵
  - Program crash
  PID:4952

C:\Windows\SysWOW64\scoyklz\ddepkljr.exe
C:\Windows\SysWOW64\scoyklz\ddepkljr.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-26_db987c25ac0b684de3ed6bbec118360d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3280
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 512
  2⤵
  - Program crash
  PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4012 -ip 4012
1⤵
PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2576 -ip 2576
1⤵
PID:2068

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\ddepkljr.exe

Filesize
14.2MB

MD5
0799503585cac9089648a72d78cad578

SHA1
9217d2ec5e02b6f614afea6b3792757dc14213b6

SHA256
adf3300da47d6327db4460dde0dfec57c77d79ae687c3b2f66bc92f9add076f6

SHA512
79c5d65adf13289bf1b79638ce4ae59696fa3b1965a0fe1aac96ec253cd6008e8b09b62a0f48d0cc3d321457d5a7f109ece54a0d6f4b3ff75153048ff0f8d50e

Download Submit
memory/2576-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2576-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2576-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2576-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3280-16-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/3280-14-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/3280-17-0x0000000001020000-0x0000000001035000-memory.dmp

Filesize
84KB

Download
memory/4012-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4012-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4012-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4012-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4012-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4012-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads