tofsee | d1254107245e25bc26376e9913ae204fb0d1992455e809aa03f51eec910294da

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 01:13

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General

Target

2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe
Size

12.4MB
MD5

611a439c5a29846e90960d247620c30d
SHA1

ac34d80dec401c12d05a196385e8ffd4dd02f43e
SHA256

d1254107245e25bc26376e9913ae204fb0d1992455e809aa03f51eec910294da
SHA512

60f373125ee2bec44027b369715e80293c75c450cd3ec54681f920118f2b35365eaa9af3cf8b5d13c14be35d681d42badeb81a7aa837a94dc5f9bbe07777a8f8
SSDEEP

24576:ipomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttE:GooC

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\srkvqayp = "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
568	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\srkvqayp\ImagePath = "C:\\Windows\\SysWOW64\\srkvqayp\\lffwhqhj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2076	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	lffwhqhj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1424 set thread context of 2076	1424	lffwhqhj.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2220	sc.exe
2640	sc.exe
2616	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	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.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	lffwhqhj.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2984	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	30
PID 2904 wrote to memory of 2984	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	30
PID 2904 wrote to memory of 2984	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	30
PID 2904 wrote to memory of 2984	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	30
PID 2904 wrote to memory of 2872	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	32
PID 2904 wrote to memory of 2872	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	32
PID 2904 wrote to memory of 2872	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	32
PID 2904 wrote to memory of 2872	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	32
PID 2904 wrote to memory of 2220	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	34
PID 2904 wrote to memory of 2220	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	34
PID 2904 wrote to memory of 2220	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	34
PID 2904 wrote to memory of 2220	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	34
PID 2904 wrote to memory of 2640	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	36
PID 2904 wrote to memory of 2640	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	36
PID 2904 wrote to memory of 2640	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	36
PID 2904 wrote to memory of 2640	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	36
PID 2904 wrote to memory of 2616	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	38
PID 2904 wrote to memory of 2616	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	38
PID 2904 wrote to memory of 2616	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	38
PID 2904 wrote to memory of 2616	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	38
PID 1424 wrote to memory of 2076	1424	lffwhqhj.exe	41
PID 1424 wrote to memory of 2076	1424	lffwhqhj.exe	41
PID 1424 wrote to memory of 2076	1424	lffwhqhj.exe	41
PID 1424 wrote to memory of 2076	1424	lffwhqhj.exe	41
PID 1424 wrote to memory of 2076	1424	lffwhqhj.exe	41
PID 1424 wrote to memory of 2076	1424	lffwhqhj.exe	41
PID 2904 wrote to memory of 568	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	42
PID 2904 wrote to memory of 568	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	42
PID 2904 wrote to memory of 568	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	42
PID 2904 wrote to memory of 568	2904	2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\srkvqayp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lffwhqhj.exe" C:\Windows\SysWOW64\srkvqayp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create srkvqayp binPath= "C:\Windows\SysWOW64\srkvqayp\lffwhqhj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description srkvqayp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start srkvqayp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- 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:568

C:\Windows\SysWOW64\srkvqayp\lffwhqhj.exe
C:\Windows\SysWOW64\srkvqayp\lffwhqhj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_611a439c5a29846e90960d247620c30d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1424
- 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:2076

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\lffwhqhj.exe

Filesize
11.1MB

MD5
b491a4aa8f5cf5701e955a8a0f4ea255

SHA1
1477fb55b729c2219260c2c66b1f475e642bd7f9

SHA256
1351246a083a538d49a1200e60500c39160d45c565433629604bc8d0574ed7a7

SHA512
9083c3ee79c2b922ca7f84f6602bf4b1905f9802279d66aeee4db9fbd20fe0225a8ac2e000ef1269a5eed5088f7702b00ecdecae204bc0d03236cb8f10cd5999

Download Submit
memory/1424-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2076-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2076-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2076-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2076-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2076-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2904-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2904-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2904-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2904-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2904-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2904-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads