tofsee | 12b1109b821b9695c766fa4413d64c46b537917dee1f1afb2a75ab6846b642c4

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 05:54

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General

Target

2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe
Size

11.8MB
MD5

877c136c5b3187fdb39b619b352113bb
SHA1

8f012b1a114be7b9642a3c1d79b6149eeaf63c46
SHA256

12b1109b821b9695c766fa4413d64c46b537917dee1f1afb2a75ab6846b642c4
SHA512

6b54e2fafb13f43836b6e911eefceab89836ed939443bb3af3cf505d14212e91c83b871aee0ce00941e28f189dbff46abf832b1a84558e043e16a5f547805aee
SSDEEP

49152:JqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:JqtYc3

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\anuzxpcw = "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
2804	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\anuzxpcw\ImagePath = "C:\\Windows\\SysWOW64\\anuzxpcw\\dycukvxv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	dycukvxv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2768	2868	dycukvxv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2796	sc.exe
2204	sc.exe
2800	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dycukvxv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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 2232 wrote to memory of 1308	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	30
PID 2232 wrote to memory of 1308	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	30
PID 2232 wrote to memory of 1308	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	30
PID 2232 wrote to memory of 1308	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	30
PID 2232 wrote to memory of 548	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	32
PID 2232 wrote to memory of 548	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	32
PID 2232 wrote to memory of 548	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	32
PID 2232 wrote to memory of 548	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	32
PID 2232 wrote to memory of 2796	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	34
PID 2232 wrote to memory of 2796	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	34
PID 2232 wrote to memory of 2796	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	34
PID 2232 wrote to memory of 2796	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	34
PID 2232 wrote to memory of 2204	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	36
PID 2232 wrote to memory of 2204	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	36
PID 2232 wrote to memory of 2204	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	36
PID 2232 wrote to memory of 2204	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	36
PID 2232 wrote to memory of 2800	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	38
PID 2232 wrote to memory of 2800	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	38
PID 2232 wrote to memory of 2800	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	38
PID 2232 wrote to memory of 2800	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	38
PID 2232 wrote to memory of 2804	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	41
PID 2232 wrote to memory of 2804	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	41
PID 2232 wrote to memory of 2804	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	41
PID 2232 wrote to memory of 2804	2232	2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe	41
PID 2868 wrote to memory of 2768	2868	dycukvxv.exe	43
PID 2868 wrote to memory of 2768	2868	dycukvxv.exe	43
PID 2868 wrote to memory of 2768	2868	dycukvxv.exe	43
PID 2868 wrote to memory of 2768	2868	dycukvxv.exe	43
PID 2868 wrote to memory of 2768	2868	dycukvxv.exe	43
PID 2868 wrote to memory of 2768	2868	dycukvxv.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\anuzxpcw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dycukvxv.exe" C:\Windows\SysWOW64\anuzxpcw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create anuzxpcw binPath= "C:\Windows\SysWOW64\anuzxpcw\dycukvxv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description anuzxpcw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start anuzxpcw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2804

C:\Windows\SysWOW64\anuzxpcw\dycukvxv.exe
C:\Windows\SysWOW64\anuzxpcw\dycukvxv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_877c136c5b3187fdb39b619b352113bb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- 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:2768

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\dycukvxv.exe

Filesize
12.1MB

MD5
e90cd7091a0e5827b979fa8024529000

SHA1
9379994ffb40d7baf0195ba19d247524c6a8bb72

SHA256
783769984f55579b42bb8c8ef0eb5583f366714cdd259d693ed7ce8a1f34898b

SHA512
61dec5935ff2b9d1442fda08920ad2c319d92b173a35ca1af0feaf38e8e927fc6a4906ff16b180b003dd46920fe873b2be9d0dead9523c23664514b4d76116fc

Download Submit
memory/2232-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2232-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2232-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2232-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2232-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2232-1-0x0000000002F90000-0x0000000003090000-memory.dmp

Filesize
1024KB

Download
memory/2768-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2768-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-17-0x0000000000400000-0x0000000002DC3000-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