tofsee | ebbbf0ab4dcda04918036092a515255e57af81df6ffce76f38b22677171a5900

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 16:23

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General

Target

2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe
Size

14.7MB
MD5

0abcb3517fa3d3f7125af8e3848ee61a
SHA1

80afec29733f7e81c06e8433d4a3f46d029bade0
SHA256

ebbbf0ab4dcda04918036092a515255e57af81df6ffce76f38b22677171a5900
SHA512

15e562cec99e44b1c2263c8d9fa7f9a48d1da092d8dbdb5bab89bad4481b9073271ca3a58951cb1d580275c8141ed7fb423177770df20ba71c6d3dba8abe31e9
SSDEEP

393216:GXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXs:L

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\qvpotdej = "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
3048	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\qvpotdej\ImagePath = "C:\\Windows\\SysWOW64\\qvpotdej\\kbxevuyc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2636	kbxevuyc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 2620	2636	kbxevuyc.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2960	sc.exe
2852	sc.exe
2564	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	kbxevuyc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2856	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	30
PID 2696 wrote to memory of 2856	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	30
PID 2696 wrote to memory of 2856	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	30
PID 2696 wrote to memory of 2856	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	30
PID 2696 wrote to memory of 2744	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	32
PID 2696 wrote to memory of 2744	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	32
PID 2696 wrote to memory of 2744	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	32
PID 2696 wrote to memory of 2744	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	32
PID 2696 wrote to memory of 2960	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	34
PID 2696 wrote to memory of 2960	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	34
PID 2696 wrote to memory of 2960	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	34
PID 2696 wrote to memory of 2960	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	34
PID 2696 wrote to memory of 2852	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	36
PID 2696 wrote to memory of 2852	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	36
PID 2696 wrote to memory of 2852	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	36
PID 2696 wrote to memory of 2852	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	36
PID 2696 wrote to memory of 2564	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	38
PID 2696 wrote to memory of 2564	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	38
PID 2696 wrote to memory of 2564	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	38
PID 2696 wrote to memory of 2564	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	38
PID 2636 wrote to memory of 2620	2636	kbxevuyc.exe	41
PID 2636 wrote to memory of 2620	2636	kbxevuyc.exe	41
PID 2636 wrote to memory of 2620	2636	kbxevuyc.exe	41
PID 2636 wrote to memory of 2620	2636	kbxevuyc.exe	41
PID 2636 wrote to memory of 2620	2636	kbxevuyc.exe	41
PID 2636 wrote to memory of 2620	2636	kbxevuyc.exe	41
PID 2696 wrote to memory of 3048	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	42
PID 2696 wrote to memory of 3048	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	42
PID 2696 wrote to memory of 3048	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	42
PID 2696 wrote to memory of 3048	2696	2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qvpotdej\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kbxevuyc.exe" C:\Windows\SysWOW64\qvpotdej\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qvpotdej binPath= "C:\Windows\SysWOW64\qvpotdej\kbxevuyc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qvpotdej "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qvpotdej
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2564
- 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:3048

C:\Windows\SysWOW64\qvpotdej\kbxevuyc.exe
C:\Windows\SysWOW64\qvpotdej\kbxevuyc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-04_0abcb3517fa3d3f7125af8e3848ee61a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2620

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\kbxevuyc.exe

Filesize
11.6MB

MD5
6d99eca07a5748bc8d82db3049d14cc8

SHA1
6c3f7ecea602fbfdd60bec3d022ea989a3057c1b

SHA256
194dda5b0d5555193c3937f595cb3b4aa8239f45f4ec0319306a278e9e400915

SHA512
d37d30f1b36ae40e0cf04cab96ba36e7bb0015ba846fcee897b048bcce0a15e2ae3ed83b76e779d7918bb31f56a2b3bc6eca794fa74fb9489bca5ec97b80df02

Download Submit
memory/2620-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2696-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2696-1-0x00000000004D0000-0x00000000005D0000-memory.dmp

Filesize
1024KB

Download
memory/2696-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2696-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads