tofsee | 717237d3bba5bb7cd3cc3959b1a0fc00922b8a366f6884ec335829233a18cb8d

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/02/2025, 21:11

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General

Target

2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe
Size

13.3MB
MD5

7758684391ea7ff786b6a68acde585e1
SHA1

eabe1ed0a522ebae1925df9cae1970e72850635a
SHA256

717237d3bba5bb7cd3cc3959b1a0fc00922b8a366f6884ec335829233a18cb8d
SHA512

91e5992cdcb921fbc8e0eabf1f89be84bd33a18f30b98c9f39837edbfd92c19781170e3524d5d6bc97767fa258adfc4f296443a2fb19e4d6b1800bd73b35891b
SSDEEP

3072:nLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:+OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\eghkxjjb = "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
588	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\eghkxjjb\ImagePath = "C:\\Windows\\SysWOW64\\eghkxjjb\\ikflerb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2180	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	ikflerb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 2180	2680	ikflerb.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2632	sc.exe
2664	sc.exe
2624	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	2025-02-03_7758684391ea7ff786b6a68acde585e1_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	svchost.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	ikflerb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2740	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	30
PID 2820 wrote to memory of 2740	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	30
PID 2820 wrote to memory of 2740	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	30
PID 2820 wrote to memory of 2740	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	30
PID 2820 wrote to memory of 2932	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	32
PID 2820 wrote to memory of 2932	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	32
PID 2820 wrote to memory of 2932	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	32
PID 2820 wrote to memory of 2932	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	32
PID 2820 wrote to memory of 2632	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	34
PID 2820 wrote to memory of 2632	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	34
PID 2820 wrote to memory of 2632	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	34
PID 2820 wrote to memory of 2632	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	34
PID 2820 wrote to memory of 2664	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	36
PID 2820 wrote to memory of 2664	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	36
PID 2820 wrote to memory of 2664	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	36
PID 2820 wrote to memory of 2664	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	36
PID 2820 wrote to memory of 2624	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	38
PID 2820 wrote to memory of 2624	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	38
PID 2820 wrote to memory of 2624	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	38
PID 2820 wrote to memory of 2624	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	38
PID 2680 wrote to memory of 2180	2680	ikflerb.exe	41
PID 2680 wrote to memory of 2180	2680	ikflerb.exe	41
PID 2680 wrote to memory of 2180	2680	ikflerb.exe	41
PID 2680 wrote to memory of 2180	2680	ikflerb.exe	41
PID 2680 wrote to memory of 2180	2680	ikflerb.exe	41
PID 2680 wrote to memory of 2180	2680	ikflerb.exe	41
PID 2820 wrote to memory of 588	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	42
PID 2820 wrote to memory of 588	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	42
PID 2820 wrote to memory of 588	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	42
PID 2820 wrote to memory of 588	2820	2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eghkxjjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ikflerb.exe" C:\Windows\SysWOW64\eghkxjjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eghkxjjb binPath= "C:\Windows\SysWOW64\eghkxjjb\ikflerb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2632
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eghkxjjb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eghkxjjb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- 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:588

C:\Windows\SysWOW64\eghkxjjb\ikflerb.exe
C:\Windows\SysWOW64\eghkxjjb\ikflerb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_7758684391ea7ff786b6a68acde585e1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- 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:2180

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\ikflerb.exe

Filesize
12.0MB

MD5
bb5f5b9a08faae4d379199c4d6f4566a

SHA1
390d12b6e24f6ae7efe5c155980ece94332465c6

SHA256
2ada148a091e42c6bc88a8373aac33376838aec0cbeb1340a659cf8a9389d64b

SHA512
f8eb7a8cdf46c6ad65e21cc5cd331c2eb502e1e71a25f180383737f2e1d2e9dd3d4f027db718b4d5d03e35c7db3695ed02dcf7f6f7e55d6c057e048c132494b1

Download Submit
memory/2180-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2180-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2180-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2180-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2180-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2820-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2820-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2820-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2820-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2820-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads