tofsee | 8c9d73f067077892c0ffbe4778c063fc50ad6235c6e35e08e7358bb5e6751ab3

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 17:30

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General

Target

2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe
Size

14.6MB
MD5

000902790eacc0ac293c991dcdfae295
SHA1

58e9ba8e74cd2a5209c434c1a3d5ddfa2dae9f41
SHA256

8c9d73f067077892c0ffbe4778c063fc50ad6235c6e35e08e7358bb5e6751ab3
SHA512

9c9abdb9383b20f28358e8c0fcf7a4545219b5218caaf57d7dbdf93f6efb000e8d2ad135f79cabc9bfae9b33e4db37bd1fd2ba68e351523452e882f86f0ed80e
SSDEEP

49152:2qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:2qtYc3

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\vzcovngs = "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
2752	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\vzcovngs\ImagePath = "C:\\Windows\\SysWOW64\\vzcovngs\\rzosfdmm.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	rzosfdmm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 2716	2740	rzosfdmm.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2944	sc.exe
2992	sc.exe
2636	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	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	rzosfdmm.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	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2184	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	29
PID 2380 wrote to memory of 2184	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	29
PID 2380 wrote to memory of 2184	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	29
PID 2380 wrote to memory of 2184	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	29
PID 2380 wrote to memory of 2852	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	31
PID 2380 wrote to memory of 2852	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	31
PID 2380 wrote to memory of 2852	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	31
PID 2380 wrote to memory of 2852	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	31
PID 2380 wrote to memory of 2944	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	33
PID 2380 wrote to memory of 2944	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	33
PID 2380 wrote to memory of 2944	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	33
PID 2380 wrote to memory of 2944	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	33
PID 2380 wrote to memory of 2992	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	35
PID 2380 wrote to memory of 2992	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	35
PID 2380 wrote to memory of 2992	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	35
PID 2380 wrote to memory of 2992	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	35
PID 2380 wrote to memory of 2636	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	37
PID 2380 wrote to memory of 2636	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	37
PID 2380 wrote to memory of 2636	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	37
PID 2380 wrote to memory of 2636	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	37
PID 2380 wrote to memory of 2752	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	40
PID 2380 wrote to memory of 2752	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	40
PID 2380 wrote to memory of 2752	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	40
PID 2380 wrote to memory of 2752	2380	2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe	40
PID 2740 wrote to memory of 2716	2740	rzosfdmm.exe	42
PID 2740 wrote to memory of 2716	2740	rzosfdmm.exe	42
PID 2740 wrote to memory of 2716	2740	rzosfdmm.exe	42
PID 2740 wrote to memory of 2716	2740	rzosfdmm.exe	42
PID 2740 wrote to memory of 2716	2740	rzosfdmm.exe	42
PID 2740 wrote to memory of 2716	2740	rzosfdmm.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vzcovngs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rzosfdmm.exe" C:\Windows\SysWOW64\vzcovngs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vzcovngs binPath= "C:\Windows\SysWOW64\vzcovngs\rzosfdmm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vzcovngs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vzcovngs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2636
- 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:2752

C:\Windows\SysWOW64\vzcovngs\rzosfdmm.exe
C:\Windows\SysWOW64\vzcovngs\rzosfdmm.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-08_000902790eacc0ac293c991dcdfae295_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- 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:2716

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\rzosfdmm.exe

Filesize
13.7MB

MD5
dfd37cc4b5dc1b09406e8ebd4514d2ab

SHA1
93f80ea2399a59745f42070151b66448581c5693

SHA256
68b78d9be1fbb73b5d29c45c3f6cdcd136d017d6d113d8356fcb61962a874afa

SHA512
7a9f4f93365629614fe3374e8aae07356dfc7c64858bd6c6a5975691df6fb3fd85c1d7fdc8c738734aadb3e0ac69bd69d430f1aeb29c0e3a32cb0f3119a06268

Download Submit
memory/2380-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-10-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2380-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2380-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-8-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2716-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2740-18-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads