tofsee | d1f8162cc1d9a27ebd286bb30b0bc208bd395d26dd859be6635a071f0bc8940b

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 05:48

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General

Target

2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe
Size

13.8MB
MD5

0bc24556871b43248cc95e8fa707217d
SHA1

1d6f337f491d57265393cdc0d5bd8bd6757281de
SHA256

d1f8162cc1d9a27ebd286bb30b0bc208bd395d26dd859be6635a071f0bc8940b
SHA512

adb5ba1a2e4dd6e90d4b615ed72e0c530435437291cb37a3a99a2c7c2b3f72b552c1ea0583bb6dc32e2df4c84e54bccf68663f687ce1f3919ff3cf9257ca53d1
SSDEEP

49152:BqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:BqtYc3

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\vyawnimk = "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
2772	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\vyawnimk\ImagePath = "C:\\Windows\\SysWOW64\\vyawnimk\\uxdxmxio.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2640	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	uxdxmxio.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2572 set thread context of 2640	2572	uxdxmxio.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2604	sc.exe
2592	sc.exe
2524	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	2025-01-31_0bc24556871b43248cc95e8fa707217d_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uxdxmxio.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2720	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	30
PID 2712 wrote to memory of 2720	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	30
PID 2712 wrote to memory of 2720	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	30
PID 2712 wrote to memory of 2720	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	30
PID 2712 wrote to memory of 2116	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	32
PID 2712 wrote to memory of 2116	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	32
PID 2712 wrote to memory of 2116	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	32
PID 2712 wrote to memory of 2116	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	32
PID 2712 wrote to memory of 2604	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	34
PID 2712 wrote to memory of 2604	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	34
PID 2712 wrote to memory of 2604	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	34
PID 2712 wrote to memory of 2604	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	34
PID 2712 wrote to memory of 2592	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	36
PID 2712 wrote to memory of 2592	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	36
PID 2712 wrote to memory of 2592	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	36
PID 2712 wrote to memory of 2592	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	36
PID 2712 wrote to memory of 2524	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	38
PID 2712 wrote to memory of 2524	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	38
PID 2712 wrote to memory of 2524	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	38
PID 2712 wrote to memory of 2524	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	38
PID 2572 wrote to memory of 2640	2572	uxdxmxio.exe	41
PID 2572 wrote to memory of 2640	2572	uxdxmxio.exe	41
PID 2572 wrote to memory of 2640	2572	uxdxmxio.exe	41
PID 2572 wrote to memory of 2640	2572	uxdxmxio.exe	41
PID 2572 wrote to memory of 2640	2572	uxdxmxio.exe	41
PID 2572 wrote to memory of 2640	2572	uxdxmxio.exe	41
PID 2712 wrote to memory of 2772	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	42
PID 2712 wrote to memory of 2772	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	42
PID 2712 wrote to memory of 2772	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	42
PID 2712 wrote to memory of 2772	2712	2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vyawnimk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uxdxmxio.exe" C:\Windows\SysWOW64\vyawnimk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vyawnimk binPath= "C:\Windows\SysWOW64\vyawnimk\uxdxmxio.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vyawnimk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vyawnimk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- 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:2772

C:\Windows\SysWOW64\vyawnimk\uxdxmxio.exe
C:\Windows\SysWOW64\vyawnimk\uxdxmxio.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_0bc24556871b43248cc95e8fa707217d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2572
- 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:2640

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\uxdxmxio.exe

Filesize
14.4MB

MD5
a2f263c7ea7a11fe1ecec9cecacf698d

SHA1
0adcbbbd30f5ea94918eee97e627f24e91c1f73c

SHA256
61d9c1885355be993ab6b6339bfa3825b39615801e1ce69a67d94b912bf1c1a2

SHA512
5315c28eb24191f8d0d815987e96daa3793c7ec71799a2f44bec6d30bc7d5d926f025b7086f6482627a01cf8f1b640561f351fde9489a2b3f5ae64de9d87bcde

Download Submit
memory/2572-13-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2640-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2640-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2712-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2712-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2712-1-0x0000000002F90000-0x0000000003090000-memory.dmp

Filesize
1024KB

Download
memory/2712-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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