tofsee | cc37d38e078fb1516375a02f84093023df75a55b4c2ca880fa98255175ee7da7

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
02-02-2025 01:06

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General

Target

2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe
Size

12.2MB
MD5

9e54799a6d1ce9d9b4aab05f59141e88
SHA1

5a2708cfb96b1ed2ab880a8aaaa3ea1e25709b41
SHA256

cc37d38e078fb1516375a02f84093023df75a55b4c2ca880fa98255175ee7da7
SHA512

601a8af10c73544b05456f31103aeb3927fd6718a91973d6cec63035fe23a4819b66569996e7e431fd22cac3d5c5a16977930b65bdee989b62e8d9f51327782b
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\auxntwcz = "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
2980	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\auxntwcz\ImagePath = "C:\\Windows\\SysWOW64\\auxntwcz\\irlqihcy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	irlqihcy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2564	2772	irlqihcy.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2688	sc.exe
2880	sc.exe
2848	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	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_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	svchost.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	irlqihcy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2748	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	30
PID 2244 wrote to memory of 2748	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	30
PID 2244 wrote to memory of 2748	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	30
PID 2244 wrote to memory of 2748	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	30
PID 2244 wrote to memory of 2884	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	32
PID 2244 wrote to memory of 2884	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	32
PID 2244 wrote to memory of 2884	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	32
PID 2244 wrote to memory of 2884	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	32
PID 2244 wrote to memory of 2880	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	34
PID 2244 wrote to memory of 2880	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	34
PID 2244 wrote to memory of 2880	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	34
PID 2244 wrote to memory of 2880	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	34
PID 2244 wrote to memory of 2848	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	36
PID 2244 wrote to memory of 2848	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	36
PID 2244 wrote to memory of 2848	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	36
PID 2244 wrote to memory of 2848	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	36
PID 2244 wrote to memory of 2688	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	38
PID 2244 wrote to memory of 2688	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	38
PID 2244 wrote to memory of 2688	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	38
PID 2244 wrote to memory of 2688	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	38
PID 2772 wrote to memory of 2564	2772	irlqihcy.exe	41
PID 2772 wrote to memory of 2564	2772	irlqihcy.exe	41
PID 2772 wrote to memory of 2564	2772	irlqihcy.exe	41
PID 2772 wrote to memory of 2564	2772	irlqihcy.exe	41
PID 2772 wrote to memory of 2564	2772	irlqihcy.exe	41
PID 2772 wrote to memory of 2564	2772	irlqihcy.exe	41
PID 2244 wrote to memory of 2980	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	42
PID 2244 wrote to memory of 2980	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	42
PID 2244 wrote to memory of 2980	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	42
PID 2244 wrote to memory of 2980	2244	2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\auxntwcz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\irlqihcy.exe" C:\Windows\SysWOW64\auxntwcz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create auxntwcz binPath= "C:\Windows\SysWOW64\auxntwcz\irlqihcy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description auxntwcz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start auxntwcz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:2980

C:\Windows\SysWOW64\auxntwcz\irlqihcy.exe
C:\Windows\SysWOW64\auxntwcz\irlqihcy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_9e54799a6d1ce9d9b4aab05f59141e88_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2564

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\irlqihcy.exe

Filesize
11.6MB

MD5
66448dd6cb9f9066ceaa7d38f624bcd4

SHA1
3be9fbfa625d0af3841bdc2b8e0292a3c936dd66

SHA256
0a751736d696710244a241408bb06aabf7b9dc7ff85588f134a903f37b7f797d

SHA512
cbaa33afa7fbcdc92fa9ff71943ec925dc91522037a7dd5e78191a763f048f949e31c80b1fc718d12c8c7f5c0cd621794463d625d213c54978a3ee954f49c1f3

Download Submit
memory/2244-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2244-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2244-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2244-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2244-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

Filesize
1024KB

Download
memory/2244-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2564-9-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2564-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2564-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2564-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2772-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads