tofsee | c19cb57c9b1b07d9fce3b91c332897c54fc4587a6a35cfcf1dad7a472359994b

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/01/2025, 18:58

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General

Target

2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe
Size

12.7MB
MD5

5d724bae2123a62b760f822e2ec31aca
SHA1

0ef87feda2c7a82422d8d0f6e532f7dcb6626419
SHA256

c19cb57c9b1b07d9fce3b91c332897c54fc4587a6a35cfcf1dad7a472359994b
SHA512

4cf6fc1000cc7b2156ecdbd257537df77cfece6b5d0abd629260a6f265e8b042f5ea800270c6c4ad92536c4ef2fdd90e65744abe946bd313cfbcfb19ed828192
SSDEEP

49152:JqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:JqtYc3

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\uyvwnejo = "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
2572	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\uyvwnejo\ImagePath = "C:\\Windows\\SysWOW64\\uyvwnejo\\vxqbiqeu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2372	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2556	vxqbiqeu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 2372	2556	vxqbiqeu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2804	sc.exe
2580	sc.exe
2600	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	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	vxqbiqeu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_5d724bae2123a62b760f822e2ec31aca_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2820	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	30
PID 2416 wrote to memory of 2820	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	30
PID 2416 wrote to memory of 2820	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	30
PID 2416 wrote to memory of 2820	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	30
PID 2416 wrote to memory of 2976	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	32
PID 2416 wrote to memory of 2976	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	32
PID 2416 wrote to memory of 2976	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	32
PID 2416 wrote to memory of 2976	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	32
PID 2416 wrote to memory of 2804	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	34
PID 2416 wrote to memory of 2804	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	34
PID 2416 wrote to memory of 2804	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	34
PID 2416 wrote to memory of 2804	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	34
PID 2416 wrote to memory of 2580	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	36
PID 2416 wrote to memory of 2580	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	36
PID 2416 wrote to memory of 2580	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	36
PID 2416 wrote to memory of 2580	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	36
PID 2416 wrote to memory of 2600	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	38
PID 2416 wrote to memory of 2600	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	38
PID 2416 wrote to memory of 2600	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	38
PID 2416 wrote to memory of 2600	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	38
PID 2416 wrote to memory of 2572	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	41
PID 2416 wrote to memory of 2572	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	41
PID 2416 wrote to memory of 2572	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	41
PID 2416 wrote to memory of 2572	2416	2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe	41
PID 2556 wrote to memory of 2372	2556	vxqbiqeu.exe	43
PID 2556 wrote to memory of 2372	2556	vxqbiqeu.exe	43
PID 2556 wrote to memory of 2372	2556	vxqbiqeu.exe	43
PID 2556 wrote to memory of 2372	2556	vxqbiqeu.exe	43
PID 2556 wrote to memory of 2372	2556	vxqbiqeu.exe	43
PID 2556 wrote to memory of 2372	2556	vxqbiqeu.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uyvwnejo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vxqbiqeu.exe" C:\Windows\SysWOW64\uyvwnejo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uyvwnejo binPath= "C:\Windows\SysWOW64\uyvwnejo\vxqbiqeu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uyvwnejo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uyvwnejo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2600
- 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:2572

C:\Windows\SysWOW64\uyvwnejo\vxqbiqeu.exe
C:\Windows\SysWOW64\uyvwnejo\vxqbiqeu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-17_5d724bae2123a62b760f822e2ec31aca_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556
- 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:2372

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\vxqbiqeu.exe

Filesize
13.4MB

MD5
689bf66a9398b854acb24670ce8edeaf

SHA1
488e1b8621c0fc22ff60cbe6587d0009f9f14d20

SHA256
d5edbc3fabbea6475a1179136855fdc9ca134f832955534f4dfdd6fbd144823d

SHA512
a7cf67ce0c7695ff147055c7d79ce0363ca249aa2b108b35836fd677e9e82782bb247b669008a4a20267a593f17c6896d130c7a4690b12bb86ce16d7fe1fc15d

Download Submit
memory/2372-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2372-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2372-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2416-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2416-1-0x0000000002EC0000-0x0000000002FC0000-memory.dmp

Filesize
1024KB

Download
memory/2416-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2416-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2416-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2416-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2556-15-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads