tofsee | 0ce392328843e7bcae98d1f5b4119f756f04e37d23d51f4af257d19915924264

Analysis

max time kernel
147s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 22:33

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General

Target

2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe
Size

12.1MB
MD5

9cc55c14f3f8b827be600f06294a28ae
SHA1

95cac66b7d32e4bbac545b42ab0b4a1e3d5bf0b6
SHA256

7f4bf16cfb9771a3158632ca4deb1af275cdb5b52c807f6bfa5176f9cfaf2475
SHA512

e0fef214e744710204e3e9897d83cdde34bc70953726975e6223b49ffa8638e66ebe48b7082d9d82b4f6b5972cbc49824f575fac89f1a4b7e88b451cab4382bd
SSDEEP

49152:pLFuiE888888888888888888888888888888888888888888888888888888888x:pLMQ

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\peyvomq = "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
2264	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\peyvomq\ImagePath = "C:\\Windows\\SysWOW64\\peyvomq\\rtounak.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2984	rtounak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2984 set thread context of 2820	2984	rtounak.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2184	sc.exe
2760	sc.exe
2856	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	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.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	netsh.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	rtounak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2196	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	30
PID 2916 wrote to memory of 2196	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	30
PID 2916 wrote to memory of 2196	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	30
PID 2916 wrote to memory of 2196	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	30
PID 2916 wrote to memory of 2564	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	32
PID 2916 wrote to memory of 2564	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	32
PID 2916 wrote to memory of 2564	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	32
PID 2916 wrote to memory of 2564	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	32
PID 2916 wrote to memory of 2184	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	34
PID 2916 wrote to memory of 2184	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	34
PID 2916 wrote to memory of 2184	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	34
PID 2916 wrote to memory of 2184	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	34
PID 2916 wrote to memory of 2760	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	36
PID 2916 wrote to memory of 2760	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	36
PID 2916 wrote to memory of 2760	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	36
PID 2916 wrote to memory of 2760	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	36
PID 2916 wrote to memory of 2856	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	38
PID 2916 wrote to memory of 2856	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	38
PID 2916 wrote to memory of 2856	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	38
PID 2916 wrote to memory of 2856	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	38
PID 2916 wrote to memory of 2264	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	41
PID 2916 wrote to memory of 2264	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	41
PID 2916 wrote to memory of 2264	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	41
PID 2916 wrote to memory of 2264	2916	2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe	41
PID 2984 wrote to memory of 2820	2984	rtounak.exe	43
PID 2984 wrote to memory of 2820	2984	rtounak.exe	43
PID 2984 wrote to memory of 2820	2984	rtounak.exe	43
PID 2984 wrote to memory of 2820	2984	rtounak.exe	43
PID 2984 wrote to memory of 2820	2984	rtounak.exe	43
PID 2984 wrote to memory of 2820	2984	rtounak.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\peyvomq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rtounak.exe" C:\Windows\SysWOW64\peyvomq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create peyvomq binPath= "C:\Windows\SysWOW64\peyvomq\rtounak.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description peyvomq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start peyvomq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- 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:2264

C:\Windows\SysWOW64\peyvomq\rtounak.exe
C:\Windows\SysWOW64\peyvomq\rtounak.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_9cc55c14f3f8b827be600f06294a28ae_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984
- 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:2820

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\rtounak.exe

Filesize
10.5MB

MD5
076dbae768ca3e53f7915af12ec68828

SHA1
edd1335fc8d0eac463633bbefde582337c76cb9e

SHA256
01293d363ac374537ea922e058e50f0ee38a6a18cc0358b8c741c5148ff9d168

SHA512
4d5f6f92add04f63eead0e8af4efe2ff4cd3790c01041e683d0a0099dff77d10ad4f53af50cba41c662e507b95f93801edef53d11794b00c86290d9f6449dadd

Download Submit
memory/2820-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2916-2-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2916-3-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2916-6-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2984-13-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads