tofsee | ab2150790dc854f0255900e275835b89d75cfa4c204ebeaacd4183babcc8576d

Analysis

max time kernel
144s
max time network
116s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 19:23

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General

Target

2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe
Size

14.4MB
MD5

052e6cb89d1215df489753b31e65d4b2
SHA1

7c538be17cdd5e617dd23034b5018549b9594d39
SHA256

ab2150790dc854f0255900e275835b89d75cfa4c204ebeaacd4183babcc8576d
SHA512

8e7aa3822b4c933717aeb3e54e91eedb9cf0e82da9a888cadb3bbe6516c0287dcd88f63df6772be5963c086dcdf38494484b022e0b6ec5e64c3f7b64eaaca679
SSDEEP

24576:R6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ4:4WdLQk

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\kygmmyz = "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
2756	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\kygmmyz\ImagePath = "C:\\Windows\\SysWOW64\\kygmmyz\\qynrecll.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2788	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	qynrecll.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2788	2828	qynrecll.exe	40

Launches sc.exe 3 IoCs

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

pid	Process
2740	sc.exe
2212	sc.exe
2728	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_052e6cb89d1215df489753b31e65d4b2_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	qynrecll.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2776	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	29
PID 2532 wrote to memory of 2776	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	29
PID 2532 wrote to memory of 2776	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	29
PID 2532 wrote to memory of 2776	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	29
PID 2532 wrote to memory of 2188	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	31
PID 2532 wrote to memory of 2188	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	31
PID 2532 wrote to memory of 2188	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	31
PID 2532 wrote to memory of 2188	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	31
PID 2532 wrote to memory of 2728	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	33
PID 2532 wrote to memory of 2728	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	33
PID 2532 wrote to memory of 2728	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	33
PID 2532 wrote to memory of 2728	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	33
PID 2532 wrote to memory of 2740	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	35
PID 2532 wrote to memory of 2740	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	35
PID 2532 wrote to memory of 2740	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	35
PID 2532 wrote to memory of 2740	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	35
PID 2532 wrote to memory of 2212	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	37
PID 2532 wrote to memory of 2212	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	37
PID 2532 wrote to memory of 2212	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	37
PID 2532 wrote to memory of 2212	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	37
PID 2828 wrote to memory of 2788	2828	qynrecll.exe	40
PID 2828 wrote to memory of 2788	2828	qynrecll.exe	40
PID 2828 wrote to memory of 2788	2828	qynrecll.exe	40
PID 2828 wrote to memory of 2788	2828	qynrecll.exe	40
PID 2828 wrote to memory of 2788	2828	qynrecll.exe	40
PID 2828 wrote to memory of 2788	2828	qynrecll.exe	40
PID 2532 wrote to memory of 2756	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	41
PID 2532 wrote to memory of 2756	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	41
PID 2532 wrote to memory of 2756	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	41
PID 2532 wrote to memory of 2756	2532	2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kygmmyz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qynrecll.exe" C:\Windows\SysWOW64\kygmmyz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kygmmyz binPath= "C:\Windows\SysWOW64\kygmmyz\qynrecll.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kygmmyz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kygmmyz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2212
- 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:2756

C:\Windows\SysWOW64\kygmmyz\qynrecll.exe
C:\Windows\SysWOW64\kygmmyz\qynrecll.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_052e6cb89d1215df489753b31e65d4b2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2788

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\qynrecll.exe

Filesize
11.3MB

MD5
511bf0bd6555b577aaba5f42464f5088

SHA1
88d41f70a837865e5805f81a5bc43536159def9f

SHA256
fb1c61a455421e7cfa43390311e2eeb909e9e959efda4810e71507cbc6f025d5

SHA512
a233cf76a2325a0a61b09bacda3407d588aa36624979bd6c3aad6c55c2d1e3eab8fcb0a5c4eed3ee97f465c2196e155ca574867ac799633e2543960b55f9000a

Download Submit
memory/2532-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2532-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2532-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2532-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

Filesize
1024KB

Download
memory/2532-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2788-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2788-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads