tofsee | 1dcda0b7826f5de9c4b27434747be528c494099db5b2aecfc42ff2fcbd91733c

General

Target

2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe
Size

13.9MB
MD5

86f39602787e4c7d824ee282d38a27e8
SHA1

964239a52ed773ab708b14d7d426b48a1c64bbf5
SHA256

1dcda0b7826f5de9c4b27434747be528c494099db5b2aecfc42ff2fcbd91733c
SHA512

1a0537cf821169a292f099aae4c90a1629224c02c713ba6f214794d10621d2408e4fecd2202e9ae00cf7ebcc7b1986c13a90ebdafcbf08e39aacb71d5415018f
SSDEEP

24576:gEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZV:dfotj

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
1052	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\poiyoavk\ImagePath = "C:\\Windows\\SysWOW64\\poiyoavk\\fwszqptx.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe

Deletes itself 1 IoCs

pid	Process
1868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4752	fwszqptx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4752 set thread context of 1868	4752	fwszqptx.exe	111

Launches sc.exe 3 IoCs

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

pid	Process
1832	sc.exe
2516	sc.exe
1096	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
3124	1344	WerFault.exe	83
4392	4752	WerFault.exe	104

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fwszqptx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 2580	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	93
PID 1344 wrote to memory of 2580	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	93
PID 1344 wrote to memory of 2580	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	93
PID 1344 wrote to memory of 2952	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	95
PID 1344 wrote to memory of 2952	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	95
PID 1344 wrote to memory of 2952	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	95
PID 1344 wrote to memory of 1832	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	97
PID 1344 wrote to memory of 1832	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	97
PID 1344 wrote to memory of 1832	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	97
PID 1344 wrote to memory of 2516	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	99
PID 1344 wrote to memory of 2516	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	99
PID 1344 wrote to memory of 2516	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	99
PID 1344 wrote to memory of 1096	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	102
PID 1344 wrote to memory of 1096	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	102
PID 1344 wrote to memory of 1096	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	102
PID 1344 wrote to memory of 1052	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	105
PID 1344 wrote to memory of 1052	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	105
PID 1344 wrote to memory of 1052	1344	2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe	105
PID 4752 wrote to memory of 1868	4752	fwszqptx.exe	111
PID 4752 wrote to memory of 1868	4752	fwszqptx.exe	111
PID 4752 wrote to memory of 1868	4752	fwszqptx.exe	111
PID 4752 wrote to memory of 1868	4752	fwszqptx.exe	111
PID 4752 wrote to memory of 1868	4752	fwszqptx.exe	111

C:\Users\Admin\AppData\Local\Temp\2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\poiyoavk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fwszqptx.exe" C:\Windows\SysWOW64\poiyoavk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create poiyoavk binPath= "C:\Windows\SysWOW64\poiyoavk\fwszqptx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description poiyoavk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start poiyoavk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1096
- 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:1052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 1188
  2⤵
  - Program crash
  PID:3124

C:\Windows\SysWOW64\poiyoavk\fwszqptx.exe
C:\Windows\SysWOW64\poiyoavk\fwszqptx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_86f39602787e4c7d824ee282d38a27e8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 508
  2⤵
  - Program crash
  PID:4392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 1344 -ip 1344
1⤵
PID:2368

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4752 -ip 4752
1⤵
PID:2228

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\fwszqptx.exe

Filesize
12.7MB

MD5
4bbb51b1524090904d65ba78bcec90ca

SHA1
3aa07dff04595f3a1cee26c7b110b81c8133d3c5

SHA256
a720473bbd7cec4e13776b1a6cef3a95be6d160128c242502c58fe1c243608f3

SHA512
6a83058d0bb7e2c872ebb808f51192d8c4656f3390e15386d7ed9dbd77a224780f5181e37a5b157f0a02096612b1ac83f1d3f0d8c33070748dd4af015234ce5e

Download Submit
memory/1344-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1344-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1344-2-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/1344-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1344-8-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/1344-1-0x0000000000750000-0x0000000000850000-memory.dmp

Filesize
1024KB

Download
memory/1868-14-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/1868-16-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/1868-17-0x00000000012E0000-0x00000000012F5000-memory.dmp

Filesize
84KB

Download
memory/4752-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4752-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4752-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4752-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads