tofsee | 0ab9ae35fa5dd4cb6ddbdba612fbd5461a7a18da70e72d490dedf9900bbc947e

General

Target

2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe
Size

14.9MB
MD5

823f52bd7f73c1fc2bdcedb16dd767fb
SHA1

6cd6da79e4a970054a353128de0401c5df146400
SHA256

0ab9ae35fa5dd4cb6ddbdba612fbd5461a7a18da70e72d490dedf9900bbc947e
SHA512

c0ae59e3e2dee62394044d01e6109b4cef06474a447bbb44803f47c3d090c50be19fd31cd43a5834fdf869786cd2076e902bf7d95e175e90556ca29a5650e0b3
SSDEEP

3072:LLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/2:yOMdRQr7OB0ypmMXnl8XEPM3noSWOC/

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
3624	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\qffrdtae\ImagePath = "C:\\Windows\\SysWOW64\\qffrdtae\\zuyqgrtr.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe

Deletes itself 1 IoCs

pid	Process
1864	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3580	zuyqgrtr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3580 set thread context of 1864	3580	zuyqgrtr.exe	112

Launches sc.exe 3 IoCs

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

pid	Process
704	sc.exe
3896	sc.exe
2412	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4428	536	WerFault.exe	84
1544	3580	WerFault.exe	103

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	netsh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zuyqgrtr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 4532	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	88
PID 536 wrote to memory of 4532	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	88
PID 536 wrote to memory of 4532	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	88
PID 536 wrote to memory of 3520	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	95
PID 536 wrote to memory of 3520	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	95
PID 536 wrote to memory of 3520	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	95
PID 536 wrote to memory of 704	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	97
PID 536 wrote to memory of 704	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	97
PID 536 wrote to memory of 704	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	97
PID 536 wrote to memory of 3896	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	99
PID 536 wrote to memory of 3896	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	99
PID 536 wrote to memory of 3896	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	99
PID 536 wrote to memory of 2412	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	101
PID 536 wrote to memory of 2412	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	101
PID 536 wrote to memory of 2412	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	101
PID 536 wrote to memory of 3624	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	104
PID 536 wrote to memory of 3624	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	104
PID 536 wrote to memory of 3624	536	2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe	104
PID 3580 wrote to memory of 1864	3580	zuyqgrtr.exe	112
PID 3580 wrote to memory of 1864	3580	zuyqgrtr.exe	112
PID 3580 wrote to memory of 1864	3580	zuyqgrtr.exe	112
PID 3580 wrote to memory of 1864	3580	zuyqgrtr.exe	112
PID 3580 wrote to memory of 1864	3580	zuyqgrtr.exe	112

C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qffrdtae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zuyqgrtr.exe" C:\Windows\SysWOW64\qffrdtae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3520
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qffrdtae binPath= "C:\Windows\SysWOW64\qffrdtae\zuyqgrtr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qffrdtae "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qffrdtae
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2412
- 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:3624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 536 -s 648
  2⤵
  - Program crash
  PID:4428

C:\Windows\SysWOW64\qffrdtae\zuyqgrtr.exe
C:\Windows\SysWOW64\qffrdtae\zuyqgrtr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_823f52bd7f73c1fc2bdcedb16dd767fb_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 508
  2⤵
  - Program crash
  PID:1544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 536 -ip 536
1⤵
PID:1004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3580 -ip 3580
1⤵
PID:5088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\zuyqgrtr.exe

Filesize
11.4MB

MD5
8d83eea02496d68885edbfa9da4aa010

SHA1
9f0f38efea8aec76d46171d6c968c5bfb62d3b02

SHA256
3fdbb5a286ae54fdadbba62f948c93ed97bcbaedf9a9399346b04094b41fa49b

SHA512
f0cacbcdf703ca7294a9109b3eb1bce6fcebb0d28cff3838123cc796fa4da2ab2fb241096e90ee16c7074263598e487e193fcd048336979f9888dfbb653ec002

Download Submit
memory/536-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/536-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/536-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/536-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/536-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/536-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/1864-13-0x00000000007D0000-0x00000000007E5000-memory.dmp

Filesize
84KB

Download
memory/1864-15-0x00000000007D0000-0x00000000007E5000-memory.dmp

Filesize
84KB

Download
memory/1864-16-0x00000000007D0000-0x00000000007E5000-memory.dmp

Filesize
84KB

Download
memory/3580-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3580-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3580-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads