tofsee | 593365bbf1e3ac18c9b361d89c8d80471e90bc0606ccd0a02342b56b0129aee3

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 11:07

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General

Target

2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe
Size

14.9MB
MD5

b6c4b7d510df5fadfb81ebb1348f930f
SHA1

38db2673c1136571266d4c399205660bc13f5c9d
SHA256

593365bbf1e3ac18c9b361d89c8d80471e90bc0606ccd0a02342b56b0129aee3
SHA512

508ab1a9f384d77c9d80703e9966cc08e353ace669f84f72c74e49942a8bef94221f835d3ed04ebbf60930d68b3a8d7a4c523e1a44fd7bc391e86b15cadc703b
SSDEEP

3072:sLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:JOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\eexvozwv = "0"	svchost.exe

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
2936	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\eexvozwv\ImagePath = "C:\\Windows\\SysWOW64\\eexvozwv\\pgomwrym.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2860	pgomwrym.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 2724	2860	pgomwrym.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1676	sc.exe
2712	sc.exe
2332	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 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	sc.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	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe
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	pgomwrym.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1384	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	30
PID 1704 wrote to memory of 1384	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	30
PID 1704 wrote to memory of 1384	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	30
PID 1704 wrote to memory of 1384	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	30
PID 1704 wrote to memory of 1336	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	32
PID 1704 wrote to memory of 1336	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	32
PID 1704 wrote to memory of 1336	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	32
PID 1704 wrote to memory of 1336	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	32
PID 1704 wrote to memory of 1676	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	34
PID 1704 wrote to memory of 1676	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	34
PID 1704 wrote to memory of 1676	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	34
PID 1704 wrote to memory of 1676	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	34
PID 1704 wrote to memory of 2712	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	36
PID 1704 wrote to memory of 2712	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	36
PID 1704 wrote to memory of 2712	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	36
PID 1704 wrote to memory of 2712	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	36
PID 1704 wrote to memory of 2332	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	38
PID 1704 wrote to memory of 2332	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	38
PID 1704 wrote to memory of 2332	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	38
PID 1704 wrote to memory of 2332	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	38
PID 2860 wrote to memory of 2724	2860	pgomwrym.exe	41
PID 2860 wrote to memory of 2724	2860	pgomwrym.exe	41
PID 2860 wrote to memory of 2724	2860	pgomwrym.exe	41
PID 2860 wrote to memory of 2724	2860	pgomwrym.exe	41
PID 2860 wrote to memory of 2724	2860	pgomwrym.exe	41
PID 2860 wrote to memory of 2724	2860	pgomwrym.exe	41
PID 1704 wrote to memory of 2936	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	42
PID 1704 wrote to memory of 2936	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	42
PID 1704 wrote to memory of 2936	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	42
PID 1704 wrote to memory of 2936	1704	2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eexvozwv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pgomwrym.exe" C:\Windows\SysWOW64\eexvozwv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eexvozwv binPath= "C:\Windows\SysWOW64\eexvozwv\pgomwrym.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eexvozwv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eexvozwv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2332
- 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:2936

C:\Windows\SysWOW64\eexvozwv\pgomwrym.exe
C:\Windows\SysWOW64\eexvozwv\pgomwrym.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_b6c4b7d510df5fadfb81ebb1348f930f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
12.6MB

MD5
4f9d7d3b174f52ccc62f9d433049e58a

SHA1
d7d244d1fa6ec7edd1d0fed17443486a451bf55e

SHA256
e9fdd4c81468b6636cb8c6662d383be7152f5f6559d51ae37434cf4e1c6bea5d

SHA512
422099db8f0adf16faadd50f90c7aa183b1dd3c082ed50ee21a38b22648efe3c8ea381f3869b30a09188154416f56ecf59ef36d79f3e23859a2c718a821173db

Download Submit
memory/1704-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/1704-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1704-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1704-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1704-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2724-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads