tofsee | 8cd5fda34842dcbe5e8de07def2f60314e0864edf2a430aca7d0e79da715831f

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 19:06

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General

Target

2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe
Size

11.3MB
MD5

4a2f911be17cbf9f739e2bc2019adc68
SHA1

d03579045d42dbe47f1395707298ecb63d1928bd
SHA256

8cd5fda34842dcbe5e8de07def2f60314e0864edf2a430aca7d0e79da715831f
SHA512

54ed898eb0f6dd2a404788a23a504f9ea0ac3b25c68024a942150a1d29d777402fa7b8c7a2e0948d4d10faa6b10450b87f88f5e5ecfad728f5cff303aedba4b2
SSDEEP

3072:YLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:VOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\qkjwrlld = "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
2716	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\qkjwrlld\ImagePath = "C:\\Windows\\SysWOW64\\qkjwrlld\\wytzsfp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2240	wytzsfp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2240 set thread context of 2724	2240	wytzsfp.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2744	sc.exe
2792	sc.exe
2548	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	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_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	wytzsfp.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 2828	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	31
PID 1764 wrote to memory of 2828	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	31
PID 1764 wrote to memory of 2828	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	31
PID 1764 wrote to memory of 2828	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	31
PID 1764 wrote to memory of 2200	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	33
PID 1764 wrote to memory of 2200	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	33
PID 1764 wrote to memory of 2200	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	33
PID 1764 wrote to memory of 2200	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	33
PID 1764 wrote to memory of 2744	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	35
PID 1764 wrote to memory of 2744	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	35
PID 1764 wrote to memory of 2744	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	35
PID 1764 wrote to memory of 2744	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	35
PID 1764 wrote to memory of 2792	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	37
PID 1764 wrote to memory of 2792	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	37
PID 1764 wrote to memory of 2792	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	37
PID 1764 wrote to memory of 2792	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	37
PID 1764 wrote to memory of 2548	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	39
PID 1764 wrote to memory of 2548	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	39
PID 1764 wrote to memory of 2548	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	39
PID 1764 wrote to memory of 2548	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	39
PID 2240 wrote to memory of 2724	2240	wytzsfp.exe	42
PID 2240 wrote to memory of 2724	2240	wytzsfp.exe	42
PID 2240 wrote to memory of 2724	2240	wytzsfp.exe	42
PID 2240 wrote to memory of 2724	2240	wytzsfp.exe	42
PID 2240 wrote to memory of 2724	2240	wytzsfp.exe	42
PID 2240 wrote to memory of 2724	2240	wytzsfp.exe	42
PID 1764 wrote to memory of 2716	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	43
PID 1764 wrote to memory of 2716	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	43
PID 1764 wrote to memory of 2716	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	43
PID 1764 wrote to memory of 2716	1764	2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qkjwrlld\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wytzsfp.exe" C:\Windows\SysWOW64\qkjwrlld\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qkjwrlld binPath= "C:\Windows\SysWOW64\qkjwrlld\wytzsfp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qkjwrlld "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qkjwrlld
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- 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:2716

C:\Windows\SysWOW64\qkjwrlld\wytzsfp.exe
C:\Windows\SysWOW64\qkjwrlld\wytzsfp.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-31_4a2f911be17cbf9f739e2bc2019adc68_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- 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:2724

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\wytzsfp.exe

Filesize
12.5MB

MD5
6929f77a4b76ff1588b7923839394d89

SHA1
e80365fb73bf6f37e6c5a1a07a21df84f0fe5c8c

SHA256
4e71bb954908335af3c0b20b71b0108699c263d774f3a8fab8393965a48f53e4

SHA512
22b939172769567e5c6190468802a765aec5feabcf146108b197b9b5bad97e84f0946c285521ae3d5c19c3c5e06e1907b25431b2c2e8301688e4b9328a075de0

Download Submit
memory/1764-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/1764-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1764-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1764-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1764-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2240-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2724-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2724-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2724-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2724-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads