tofsee | d7fe9f760dfce3b7a6b53e5159d3b7af53cf7c1041af9bbb9f1e335d9946d74e

General

Target

2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe
Size

14.8MB
MD5

b82fd7f8c53a08352f6a9b9334e91beb
SHA1

1706f756e43a88d305fa8ef491e5d71b8505c3cc
SHA256

d7fe9f760dfce3b7a6b53e5159d3b7af53cf7c1041af9bbb9f1e335d9946d74e
SHA512

3e0abd797ac7aaef9861a7ff397d1370956fafc51839bc98aaea524d4c9853d13e91119ee24ce2eb9b6a99d2b476defa1a0995bd655b3468a20aab713604002d
SSDEEP

3072:wLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:NOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2948	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\icxtcgdx\ImagePath = "C:\\Windows\\SysWOW64\\icxtcgdx\\vqumcnpn.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe

Deletes itself 1 IoCs

pid	Process
1732	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1928	vqumcnpn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 1732	1928	vqumcnpn.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3532	sc.exe
2784	sc.exe
4300	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
2200	2428	WerFault.exe	81
216	1928	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vqumcnpn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 5032	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	82
PID 2428 wrote to memory of 5032	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	82
PID 2428 wrote to memory of 5032	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	82
PID 2428 wrote to memory of 2708	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	84
PID 2428 wrote to memory of 2708	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	84
PID 2428 wrote to memory of 2708	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	84
PID 2428 wrote to memory of 2784	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	86
PID 2428 wrote to memory of 2784	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	86
PID 2428 wrote to memory of 2784	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	86
PID 2428 wrote to memory of 4300	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	88
PID 2428 wrote to memory of 4300	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	88
PID 2428 wrote to memory of 4300	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	88
PID 2428 wrote to memory of 3532	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	90
PID 2428 wrote to memory of 3532	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	90
PID 2428 wrote to memory of 3532	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	90
PID 2428 wrote to memory of 2948	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	93
PID 2428 wrote to memory of 2948	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	93
PID 2428 wrote to memory of 2948	2428	2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe	93
PID 1928 wrote to memory of 1732	1928	vqumcnpn.exe	98
PID 1928 wrote to memory of 1732	1928	vqumcnpn.exe	98
PID 1928 wrote to memory of 1732	1928	vqumcnpn.exe	98
PID 1928 wrote to memory of 1732	1928	vqumcnpn.exe	98
PID 1928 wrote to memory of 1732	1928	vqumcnpn.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\icxtcgdx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vqumcnpn.exe" C:\Windows\SysWOW64\icxtcgdx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create icxtcgdx binPath= "C:\Windows\SysWOW64\icxtcgdx\vqumcnpn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description icxtcgdx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start icxtcgdx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3532
- 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:2948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 1044
  2⤵
  - Program crash
  PID:2200

C:\Windows\SysWOW64\icxtcgdx\vqumcnpn.exe
C:\Windows\SysWOW64\icxtcgdx\vqumcnpn.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-22_b82fd7f8c53a08352f6a9b9334e91beb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1928 -s 512
  2⤵
  - Program crash
  PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2428 -ip 2428
1⤵
PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1928 -ip 1928
1⤵
PID:3040

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.6MB

MD5
3922515e5c8291f9d78551a7f63143df

SHA1
9f041d42fa858f20724586abbb8a77d004a72584

SHA256
03d8acde796a6d089a3614b8ff4a8ce20587b354e074b8ced7d6381c354f83cf

SHA512
79ab31bc35f78c10e4fd8e7682afbcf3edd57aa69f31d35ead0e1bbe52847d76edb9b271eba9980d363fb26c5ce7853bd311d30c0328d1dae7a79db1fcfb196f

Download Submit
memory/1732-14-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/1732-17-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/1732-16-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/1928-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1928-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1928-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1928-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2428-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2428-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2428-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2428-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2428-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2428-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads