tofsee | 69299f62d1520b99bd8c85ebd76d67d3f87570c14ce5401905a6f402afb3f29c

General

Target

2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe
Size

13.5MB
MD5

cdbaca4721c7f448ae68647df39bf536
SHA1

cb7f96385d9c6f758ead9da6855afaf4b1030295
SHA256

69299f62d1520b99bd8c85ebd76d67d3f87570c14ce5401905a6f402afb3f29c
SHA512

04bb5b6f6b246d27ce9f8d83263f122615781fb6192ac8bd3622f559856aa7fef1cb518dba24f2b6761fce4d7e039e496e62bc9bfaab6980557d4ef5f2cd5ab2
SSDEEP

24576:IEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZr:Ffot

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
1560	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\eojuslsz\ImagePath = "C:\\Windows\\SysWOW64\\eojuslsz\\dmgldcxt.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5012	dmgldcxt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 2828	5012	dmgldcxt.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3112	sc.exe
1036	sc.exe
396	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
780	4716	WerFault.exe	80
1328	5012	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	dmgldcxt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 3368	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	86
PID 4716 wrote to memory of 3368	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	86
PID 4716 wrote to memory of 3368	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	86
PID 4716 wrote to memory of 1928	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	88
PID 4716 wrote to memory of 1928	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	88
PID 4716 wrote to memory of 1928	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	88
PID 4716 wrote to memory of 3112	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	90
PID 4716 wrote to memory of 3112	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	90
PID 4716 wrote to memory of 3112	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	90
PID 4716 wrote to memory of 1036	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	92
PID 4716 wrote to memory of 1036	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	92
PID 4716 wrote to memory of 1036	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	92
PID 4716 wrote to memory of 396	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	94
PID 4716 wrote to memory of 396	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	94
PID 4716 wrote to memory of 396	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	94
PID 4716 wrote to memory of 1560	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	97
PID 4716 wrote to memory of 1560	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	97
PID 4716 wrote to memory of 1560	4716	2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe	97
PID 5012 wrote to memory of 2828	5012	dmgldcxt.exe	102
PID 5012 wrote to memory of 2828	5012	dmgldcxt.exe	102
PID 5012 wrote to memory of 2828	5012	dmgldcxt.exe	102
PID 5012 wrote to memory of 2828	5012	dmgldcxt.exe	102
PID 5012 wrote to memory of 2828	5012	dmgldcxt.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eojuslsz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dmgldcxt.exe" C:\Windows\SysWOW64\eojuslsz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eojuslsz binPath= "C:\Windows\SysWOW64\eojuslsz\dmgldcxt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eojuslsz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eojuslsz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:396
- 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:1560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 1036
  2⤵
  - Program crash
  PID:780

C:\Windows\SysWOW64\eojuslsz\dmgldcxt.exe
C:\Windows\SysWOW64\eojuslsz\dmgldcxt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_cdbaca4721c7f448ae68647df39bf536_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 512
  2⤵
  - Program crash
  PID:1328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4716 -ip 4716
1⤵
PID:4548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 5012 -ip 5012
1⤵
PID:2420

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\dmgldcxt.exe

Filesize
14.0MB

MD5
26242dbb10daab5dac440639508a6369

SHA1
481427056f1d2fdf1fcbb6acf8a2038b0b8ae0b2

SHA256
2cd1b779feabce5a03d660eb220f439f2e6c22384e293331286320dcd46c52da

SHA512
06c91d97cf6d5157fcdc03337aacaeff043234087884ac50cb62bd7e30f35675d261eb2bd58fe5fff54274312364a56ffc0eccd0095a82e87fa5d2f1c27024fa

Download Submit
memory/2828-14-0x0000000000C50000-0x0000000000C65000-memory.dmp

Filesize
84KB

Download
memory/2828-16-0x0000000000C50000-0x0000000000C65000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000C50000-0x0000000000C65000-memory.dmp

Filesize
84KB

Download
memory/4716-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4716-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4716-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4716-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4716-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4716-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/5012-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5012-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5012-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5012-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads