tofsee | 49fc37c7bc96e3404766250bc2dcddd9f68affee187305de2d1311d38b01411a

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
03-02-2025 21:31

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General

Target

2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe
Size

13.7MB
MD5

cecfedd80e6ce58f5f51f89eede80cb1
SHA1

672458345dd8a157144a9a92c9581dc6ed7b38fb
SHA256

49fc37c7bc96e3404766250bc2dcddd9f68affee187305de2d1311d38b01411a
SHA512

be151d034df69a6e200fd0e9dd1bf13fd87d4a96c928aa777d6607c5d5bb75a594c6e5bd5af88d1e43c558bd75b12eab61843d43921d15e89894c6a535e182ff
SSDEEP

6144:7LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ9:QTYe+D2jFu+iZoUFhAz

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\tjnquxf = "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
2640	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\tjnquxf\ImagePath = "C:\\Windows\\SysWOW64\\tjnquxf\\fhalsaoe.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	fhalsaoe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2692	2784	fhalsaoe.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2676	sc.exe
2832	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fhalsaoe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 2300	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	31
PID 1996 wrote to memory of 2300	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	31
PID 1996 wrote to memory of 2300	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	31
PID 1996 wrote to memory of 2300	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	31
PID 1996 wrote to memory of 1476	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	33
PID 1996 wrote to memory of 1476	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	33
PID 1996 wrote to memory of 1476	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	33
PID 1996 wrote to memory of 1476	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	33
PID 1996 wrote to memory of 2864	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	35
PID 1996 wrote to memory of 2864	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	35
PID 1996 wrote to memory of 2864	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	35
PID 1996 wrote to memory of 2864	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	35
PID 1996 wrote to memory of 2676	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	37
PID 1996 wrote to memory of 2676	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	37
PID 1996 wrote to memory of 2676	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	37
PID 1996 wrote to memory of 2676	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	37
PID 1996 wrote to memory of 2832	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	39
PID 1996 wrote to memory of 2832	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	39
PID 1996 wrote to memory of 2832	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	39
PID 1996 wrote to memory of 2832	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	39
PID 1996 wrote to memory of 2640	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	42
PID 1996 wrote to memory of 2640	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	42
PID 1996 wrote to memory of 2640	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	42
PID 1996 wrote to memory of 2640	1996	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	42
PID 2784 wrote to memory of 2692	2784	fhalsaoe.exe	44
PID 2784 wrote to memory of 2692	2784	fhalsaoe.exe	44
PID 2784 wrote to memory of 2692	2784	fhalsaoe.exe	44
PID 2784 wrote to memory of 2692	2784	fhalsaoe.exe	44
PID 2784 wrote to memory of 2692	2784	fhalsaoe.exe	44
PID 2784 wrote to memory of 2692	2784	fhalsaoe.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tjnquxf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fhalsaoe.exe" C:\Windows\SysWOW64\tjnquxf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tjnquxf binPath= "C:\Windows\SysWOW64\tjnquxf\fhalsaoe.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tjnquxf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tjnquxf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- 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:2640

C:\Windows\SysWOW64\tjnquxf\fhalsaoe.exe
C:\Windows\SysWOW64\tjnquxf\fhalsaoe.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2692

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\fhalsaoe.exe

Filesize
10.7MB

MD5
87c8113109423ff939b95f2c646e93ba

SHA1
ba833660898212c66967d58fa9de70b6611909fa

SHA256
2e260467a4c985cbed1e2baa7e6f1455c76cc1cf1811d944d80aaf0809548b72

SHA512
1c8b3f05c6ec457bed5fef5a7f40d5bbac94df38ab867e6eb1f3ca56fb0a1e15b2ede11c98fdfe40813449a751f4ab824fef5d7f5c04b2343361c12def8db959

Download Submit
memory/1996-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1996-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1996-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1996-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1996-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1996-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/2692-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads