tofsee | ec181835a2f616a354e8c8e4b9610e57acab521e9c0c7e2b9654d2b659d0f938

Analysis

max time kernel
146s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 20:13

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General

Target

2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe
Size

10.6MB
MD5

29f3585d9260d749255f000a5606a59a
SHA1

d7607e6da036975ba242320436b1150d4eec2444
SHA256

ec181835a2f616a354e8c8e4b9610e57acab521e9c0c7e2b9654d2b659d0f938
SHA512

ce4bd5341e6d525c86d12c1e3af03512d64eb38b8aad6d8033bc2678730195607816e44815790d48242e5abb9770bb8370adc74fe77b5673fc3d7b2954a97f61
SSDEEP

6144:ULQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQV:JTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion 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

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\tnptbrfn = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2880	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\tnptbrfn\ImagePath = "C:\\Windows\\SysWOW64\\tnptbrfn\\xwkmaxyq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2908	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	xwkmaxyq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 2908	2884	xwkmaxyq.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2964	sc.exe
516	sc.exe
2648	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	netsh.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xwkmaxyq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2084	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	30
PID 2324 wrote to memory of 2084	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	30
PID 2324 wrote to memory of 2084	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	30
PID 2324 wrote to memory of 2084	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	30
PID 2324 wrote to memory of 2388	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	32
PID 2324 wrote to memory of 2388	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	32
PID 2324 wrote to memory of 2388	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	32
PID 2324 wrote to memory of 2388	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	32
PID 2324 wrote to memory of 2648	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	34
PID 2324 wrote to memory of 2648	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	34
PID 2324 wrote to memory of 2648	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	34
PID 2324 wrote to memory of 2648	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	34
PID 2324 wrote to memory of 2964	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	36
PID 2324 wrote to memory of 2964	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	36
PID 2324 wrote to memory of 2964	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	36
PID 2324 wrote to memory of 2964	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	36
PID 2324 wrote to memory of 516	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	38
PID 2324 wrote to memory of 516	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	38
PID 2324 wrote to memory of 516	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	38
PID 2324 wrote to memory of 516	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	38
PID 2324 wrote to memory of 2880	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	40
PID 2324 wrote to memory of 2880	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	40
PID 2324 wrote to memory of 2880	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	40
PID 2324 wrote to memory of 2880	2324	2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe	40
PID 2884 wrote to memory of 2908	2884	xwkmaxyq.exe	44
PID 2884 wrote to memory of 2908	2884	xwkmaxyq.exe	44
PID 2884 wrote to memory of 2908	2884	xwkmaxyq.exe	44
PID 2884 wrote to memory of 2908	2884	xwkmaxyq.exe	44
PID 2884 wrote to memory of 2908	2884	xwkmaxyq.exe	44
PID 2884 wrote to memory of 2908	2884	xwkmaxyq.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tnptbrfn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xwkmaxyq.exe" C:\Windows\SysWOW64\tnptbrfn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tnptbrfn binPath= "C:\Windows\SysWOW64\tnptbrfn\xwkmaxyq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tnptbrfn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tnptbrfn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:516
- 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:2880

C:\Windows\SysWOW64\tnptbrfn\xwkmaxyq.exe
C:\Windows\SysWOW64\tnptbrfn\xwkmaxyq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_29f3585d9260d749255f000a5606a59a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- 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:2908

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\xwkmaxyq.exe

Filesize
10.9MB

MD5
f6e048e4e0e1b665ec5fafd88a7aa913

SHA1
d5111b092a7901e7416559290065b88ab7daeda8

SHA256
bb8e787d9e2380463600940db749d08ce6fbae40c65370c2a297fa688ee8ba85

SHA512
fd94eeee64b3ef3ce60454d2cf7191c418623737ec5db96e576c348be1d4362559c6110d496fcfb75c3cdcb66f9d1d49da5f691ea5ef416f7486e9b507c9730b

Download Submit
memory/2324-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2324-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2324-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2324-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2324-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2324-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2884-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2908-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2908-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2908-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2908-16-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2908-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads