tofsee | 0ab9ae35fa5dd4cb6ddbdba612fbd5461a7a18da70e72d490dedf9900bbc947e

Analysis

max time kernel
145s
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 11:05

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General

Target

2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe
Size

14.9MB
MD5

823f52bd7f73c1fc2bdcedb16dd767fb
SHA1

6cd6da79e4a970054a353128de0401c5df146400
SHA256

0ab9ae35fa5dd4cb6ddbdba612fbd5461a7a18da70e72d490dedf9900bbc947e
SHA512

c0ae59e3e2dee62394044d01e6109b4cef06474a447bbb44803f47c3d090c50be19fd31cd43a5834fdf869786cd2076e902bf7d95e175e90556ca29a5650e0b3
SSDEEP

3072:LLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/2:yOMdRQr7OB0ypmMXnl8XEPM3noSWOC/

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\eoxslxpx = "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
2652	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\eoxslxpx\ImagePath = "C:\\Windows\\SysWOW64\\eoxslxpx\\bdwhowka.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	bdwhowka.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 3000	2744	bdwhowka.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2260	sc.exe
2680	sc.exe
2748	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	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.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	bdwhowka.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 1964	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	31
PID 2456 wrote to memory of 1964	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	31
PID 2456 wrote to memory of 1964	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	31
PID 2456 wrote to memory of 1964	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	31
PID 2456 wrote to memory of 2408	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	33
PID 2456 wrote to memory of 2408	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	33
PID 2456 wrote to memory of 2408	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	33
PID 2456 wrote to memory of 2408	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	33
PID 2456 wrote to memory of 2260	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	35
PID 2456 wrote to memory of 2260	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	35
PID 2456 wrote to memory of 2260	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	35
PID 2456 wrote to memory of 2260	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	35
PID 2456 wrote to memory of 2680	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	37
PID 2456 wrote to memory of 2680	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	37
PID 2456 wrote to memory of 2680	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	37
PID 2456 wrote to memory of 2680	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	37
PID 2456 wrote to memory of 2748	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	39
PID 2456 wrote to memory of 2748	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	39
PID 2456 wrote to memory of 2748	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	39
PID 2456 wrote to memory of 2748	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	39
PID 2744 wrote to memory of 3000	2744	bdwhowka.exe	42
PID 2744 wrote to memory of 3000	2744	bdwhowka.exe	42
PID 2744 wrote to memory of 3000	2744	bdwhowka.exe	42
PID 2744 wrote to memory of 3000	2744	bdwhowka.exe	42
PID 2744 wrote to memory of 3000	2744	bdwhowka.exe	42
PID 2744 wrote to memory of 3000	2744	bdwhowka.exe	42
PID 2456 wrote to memory of 2652	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	43
PID 2456 wrote to memory of 2652	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	43
PID 2456 wrote to memory of 2652	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	43
PID 2456 wrote to memory of 2652	2456	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eoxslxpx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bdwhowka.exe" C:\Windows\SysWOW64\eoxslxpx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eoxslxpx binPath= "C:\Windows\SysWOW64\eoxslxpx\bdwhowka.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eoxslxpx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eoxslxpx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:2652

C:\Windows\SysWOW64\eoxslxpx\bdwhowka.exe
C:\Windows\SysWOW64\eoxslxpx\bdwhowka.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:3000

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\bdwhowka.exe

Filesize
12.1MB

MD5
a3c1eae0d922bddb428d7bc54f546763

SHA1
d93dab9a172c14587b4f7ba6d21a0415ba7496e1

SHA256
92f5a99d7dc825fc6e7e145fd7b8607ed963415fc6efe7e495b8553a2039629c

SHA512
944a7051515eb82ca0f590ee16357cae5f6ab40cdeb2506575c4bf1b6e1f0fce60df3e579f508201375dac5039cb9cd3958cf8057a4cd6911ddcca9d8ef42d0c

Download Submit
memory/2456-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2456-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2456-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2456-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2456-1-0x0000000000890000-0x0000000000990000-memory.dmp

Filesize
1024KB

Download
memory/2456-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2744-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3000-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads