tofsee | 0a00b714c94abdf3cf1a85956440a74e31fe3887f561d5627d8c7511672bb7a9

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, 18:02

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General

Target

2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe
Size

11.2MB
MD5

29b1f7c9d6998f93ca26325b82a59f24
SHA1

2d46160cf171e7e8f4704e94438e2a5072554369
SHA256

0a00b714c94abdf3cf1a85956440a74e31fe3887f561d5627d8c7511672bb7a9
SHA512

2289ae285a4a8e812cd7726a42cbce67e3afb8cacf966508b6058d5cc89258ae08edca5e6030110a73fdb53c50666ff80e7f2428caf4cf2f8f7a73ce94702951
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/g:POMdRQr7OB0ypmMXnl8XEPM3noSWOCF

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\yrsjkhr = "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
2816	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\yrsjkhr\ImagePath = "C:\\Windows\\SysWOW64\\yrsjkhr\\acxdwjt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2788	acxdwjt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2736	2788	acxdwjt.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2292	sc.exe
2456	sc.exe
2724	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_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe
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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acxdwjt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2164	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	30
PID 1620 wrote to memory of 2164	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	30
PID 1620 wrote to memory of 2164	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	30
PID 1620 wrote to memory of 2164	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	30
PID 1620 wrote to memory of 2664	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	32
PID 1620 wrote to memory of 2664	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	32
PID 1620 wrote to memory of 2664	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	32
PID 1620 wrote to memory of 2664	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	32
PID 1620 wrote to memory of 2292	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	34
PID 1620 wrote to memory of 2292	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	34
PID 1620 wrote to memory of 2292	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	34
PID 1620 wrote to memory of 2292	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	34
PID 1620 wrote to memory of 2456	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	36
PID 1620 wrote to memory of 2456	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	36
PID 1620 wrote to memory of 2456	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	36
PID 1620 wrote to memory of 2456	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	36
PID 1620 wrote to memory of 2724	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	38
PID 1620 wrote to memory of 2724	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	38
PID 1620 wrote to memory of 2724	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	38
PID 1620 wrote to memory of 2724	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	38
PID 2788 wrote to memory of 2736	2788	acxdwjt.exe	41
PID 2788 wrote to memory of 2736	2788	acxdwjt.exe	41
PID 2788 wrote to memory of 2736	2788	acxdwjt.exe	41
PID 2788 wrote to memory of 2736	2788	acxdwjt.exe	41
PID 2788 wrote to memory of 2736	2788	acxdwjt.exe	41
PID 2788 wrote to memory of 2736	2788	acxdwjt.exe	41
PID 1620 wrote to memory of 2816	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	42
PID 1620 wrote to memory of 2816	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	42
PID 1620 wrote to memory of 2816	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	42
PID 1620 wrote to memory of 2816	1620	2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yrsjkhr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\acxdwjt.exe" C:\Windows\SysWOW64\yrsjkhr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yrsjkhr binPath= "C:\Windows\SysWOW64\yrsjkhr\acxdwjt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yrsjkhr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yrsjkhr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2724
- 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:2816

C:\Windows\SysWOW64\yrsjkhr\acxdwjt.exe
C:\Windows\SysWOW64\yrsjkhr\acxdwjt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_29b1f7c9d6998f93ca26325b82a59f24_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2788
- 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:2736

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\acxdwjt.exe

Filesize
10.8MB

MD5
1481a5393a2fc0cbd72395395043b218

SHA1
9d26d28b93103e6fb74da139d0f575e3ec468097

SHA256
49b88386a20b581dd8c5582bbed743ec2fd8547d3b98d786a93708b722ffeb3a

SHA512
622861962a3eea4dbd3d12c7e2a9e97492eb9fb041eb16394ac42d16d9ceb61e83821bf0980d6211b0987a0ce3440ba8426baa2baf800afd1cecc6b9610af667

Download Submit
memory/1620-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1620-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1620-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/1620-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1620-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1620-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2736-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads