tofsee | edc276c44c8d5d7cbe1dd871ff30553826d13a8971e1476db1d71f55e0fa7521

Analysis

max time kernel
150s
max time network
138s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08/02/2025, 01:03

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General

Target

2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe
Size

13.8MB
MD5

dafe64fe925ed5cd19035e6f41c90c80
SHA1

2eda265f72d9e40f371f56442e42c1b4b1ad696a
SHA256

edc276c44c8d5d7cbe1dd871ff30553826d13a8971e1476db1d71f55e0fa7521
SHA512

0721f766deec0fb59f439dc8aaea5c419ff16318b2bef75001a7c4cba06bd9307ce8df8193f6d63c3b8af8e421e5941259259d1e47560317f3066699998c0a65
SSDEEP

393216:5XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:

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\vdtqyhdm = "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
1796	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\vdtqyhdm\ImagePath = "C:\\Windows\\SysWOW64\\vdtqyhdm\\vyeynyjp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2216	vyeynyjp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2216 set thread context of 1016	2216	vyeynyjp.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2992	sc.exe
2768	sc.exe
3028	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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vyeynyjp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2940	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	29
PID 2824 wrote to memory of 2940	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	29
PID 2824 wrote to memory of 2940	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	29
PID 2824 wrote to memory of 2940	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	29
PID 2824 wrote to memory of 2996	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	31
PID 2824 wrote to memory of 2996	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	31
PID 2824 wrote to memory of 2996	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	31
PID 2824 wrote to memory of 2996	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	31
PID 2824 wrote to memory of 2992	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	33
PID 2824 wrote to memory of 2992	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	33
PID 2824 wrote to memory of 2992	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	33
PID 2824 wrote to memory of 2992	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	33
PID 2824 wrote to memory of 2768	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	35
PID 2824 wrote to memory of 2768	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	35
PID 2824 wrote to memory of 2768	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	35
PID 2824 wrote to memory of 2768	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	35
PID 2824 wrote to memory of 3028	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	37
PID 2824 wrote to memory of 3028	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	37
PID 2824 wrote to memory of 3028	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	37
PID 2824 wrote to memory of 3028	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	37
PID 2824 wrote to memory of 1796	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	39
PID 2824 wrote to memory of 1796	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	39
PID 2824 wrote to memory of 1796	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	39
PID 2824 wrote to memory of 1796	2824	2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe	39
PID 2216 wrote to memory of 1016	2216	vyeynyjp.exe	42
PID 2216 wrote to memory of 1016	2216	vyeynyjp.exe	42
PID 2216 wrote to memory of 1016	2216	vyeynyjp.exe	42
PID 2216 wrote to memory of 1016	2216	vyeynyjp.exe	42
PID 2216 wrote to memory of 1016	2216	vyeynyjp.exe	42
PID 2216 wrote to memory of 1016	2216	vyeynyjp.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vdtqyhdm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vyeynyjp.exe" C:\Windows\SysWOW64\vdtqyhdm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vdtqyhdm binPath= "C:\Windows\SysWOW64\vdtqyhdm\vyeynyjp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vdtqyhdm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vdtqyhdm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3028
- 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:1796

C:\Windows\SysWOW64\vdtqyhdm\vyeynyjp.exe
C:\Windows\SysWOW64\vdtqyhdm\vyeynyjp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_dafe64fe925ed5cd19035e6f41c90c80_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2216
- 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:1016

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\vyeynyjp.exe

Filesize
11.6MB

MD5
205d580e49c8f8029b90496766eed3e4

SHA1
e53a46450b9295edc6bcc5f39d222d94a115fe68

SHA256
3c0a78e7cf46c18fd4535f24a1de86d22aa241fca2dc3efa6a59eb820a4e393c

SHA512
ae192668da19ee5e0a6ca89d7bf4b70f1d3da46540e79ab1b28aa0f3a05ad386c07a72b1cf69fc078c2a331326f1068fab6ab996bb0aea5128a8dfe60d3342e2

Download Submit
memory/1016-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1016-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1016-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1016-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/1016-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2216-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2824-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2824-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2824-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2824-6-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2824-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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