tofsee | 5f51d30f289b1a454e24a69f7b6bedbe46feac7777fb99b903edcb0e12064ff4

General

Target

2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe
Size

10.9MB
MD5

064ff886ce1dfae017a3a8ffd297c74d
SHA1

93a9531d32673ebeb3f9adc54aebe0caa6ce9ecc
SHA256

5f51d30f289b1a454e24a69f7b6bedbe46feac7777fb99b903edcb0e12064ff4
SHA512

0da174a798c099d9e03ddd4b6a015c37ae013aa18dc6c6327153fea8f9a551b8f44d7a3fd7d89ccdee1be333c68c079b1349bcfd13e5dff38b898336e493458a
SSDEEP

49152:/qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:/qtYc3

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
3924	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\whoenwhr\ImagePath = "C:\\Windows\\SysWOW64\\whoenwhr\\gxfdnipd.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-1-5-21-805940606-1861219160-370298170-1000\Control Panel\International\Geo\Nation	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe

Deletes itself 1 IoCs

pid	Process
2056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3296	gxfdnipd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3296 set thread context of 2056	3296	gxfdnipd.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
2692	sc.exe
4696	sc.exe
748	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4016	4424	WerFault.exe	82
3752	3296	WerFault.exe	96

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	gxfdnipd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 4320	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	86
PID 4424 wrote to memory of 4320	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	86
PID 4424 wrote to memory of 4320	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	86
PID 4424 wrote to memory of 2228	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	88
PID 4424 wrote to memory of 2228	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	88
PID 4424 wrote to memory of 2228	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	88
PID 4424 wrote to memory of 2692	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	90
PID 4424 wrote to memory of 2692	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	90
PID 4424 wrote to memory of 2692	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	90
PID 4424 wrote to memory of 4696	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	92
PID 4424 wrote to memory of 4696	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	92
PID 4424 wrote to memory of 4696	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	92
PID 4424 wrote to memory of 748	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	94
PID 4424 wrote to memory of 748	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	94
PID 4424 wrote to memory of 748	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	94
PID 3296 wrote to memory of 2056	3296	gxfdnipd.exe	97
PID 3296 wrote to memory of 2056	3296	gxfdnipd.exe	97
PID 3296 wrote to memory of 2056	3296	gxfdnipd.exe	97
PID 3296 wrote to memory of 2056	3296	gxfdnipd.exe	97
PID 3296 wrote to memory of 2056	3296	gxfdnipd.exe	97
PID 4424 wrote to memory of 3924	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	99
PID 4424 wrote to memory of 3924	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	99
PID 4424 wrote to memory of 3924	4424	2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\whoenwhr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gxfdnipd.exe" C:\Windows\SysWOW64\whoenwhr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create whoenwhr binPath= "C:\Windows\SysWOW64\whoenwhr\gxfdnipd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description whoenwhr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start whoenwhr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:748
- 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:3924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4424 -s 592
  2⤵
  - Program crash
  PID:4016

C:\Windows\SysWOW64\whoenwhr\gxfdnipd.exe
C:\Windows\SysWOW64\whoenwhr\gxfdnipd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_064ff886ce1dfae017a3a8ffd297c74d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3296
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3296 -s 548
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3296 -ip 3296
1⤵
PID:2128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4424 -ip 4424
1⤵
PID:2296

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

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Downloads

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

Filesize
11.7MB

MD5
a54b021a8223c5a7125f46b1c75749fb

SHA1
73ed8ef52e45823bcc01173389ca9c9d840c81a7

SHA256
7d6d2980b591cbf4e66b89610569b695d1c100336bb4e07bb894a5925884d205

SHA512
ce58683aeffa229758a36fe929c0d00e917dbebade0966e5f4ad92dbb62d1cfb8c168e2dea676b080677c4da79dcb70d6d2bbb3319f12ea89b56a4aeaf3e37bf

Download Submit
memory/2056-6-0x0000000000E90000-0x0000000000EA5000-memory.dmp

Filesize
84KB

Download
memory/2056-11-0x0000000000E90000-0x0000000000EA5000-memory.dmp

Filesize
84KB

Download
memory/2056-12-0x0000000000E90000-0x0000000000EA5000-memory.dmp

Filesize
84KB

Download
memory/3296-8-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4424-1-0x00007FFD400B0000-0x00007FFD402A5000-memory.dmp

Filesize
2.0MB

Download
memory/4424-10-0x00007FFD400B0000-0x00007FFD402A5000-memory.dmp

Filesize
2.0MB

Download
memory/4424-9-0x0000000000400000-0x0000000002DC3000-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