tofsee | b73931a4ef9966981cb28e331ef0979d79df0168331b7d176b089a3bcc7ae343

General

Target

2025-01-29_73adee93e8587e719784949652006c31_mafia.exe
Size

12.9MB
MD5

73adee93e8587e719784949652006c31
SHA1

ffc4181154c05cdfa90d8eb805bf41ebbc549e22
SHA256

b73931a4ef9966981cb28e331ef0979d79df0168331b7d176b089a3bcc7ae343
SHA512

9d676e1a239fe77ec86cdab963ec54f92600795c2ac11b0bb57e58270b250f6148808d94893cf3defaa60db1233feaa6f85049af97846f37113f96f6cc921c8e
SSDEEP

3072:9LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/b:AOMdRQr7OB0ypmMXnl8XEPM3noSWOCW

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
3672	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\qcyyuzog\ImagePath = "C:\\Windows\\SysWOW64\\qcyyuzog\\chrmgspr.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4516	chrmgspr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4516 set thread context of 2936	4516	chrmgspr.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
3012	sc.exe
2680	sc.exe
2664	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
2992	2092	WerFault.exe	81
2240	4516	WerFault.exe	92

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	chrmgspr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_73adee93e8587e719784949652006c31_mafia.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	netsh.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 1896	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	82
PID 2092 wrote to memory of 1896	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	82
PID 2092 wrote to memory of 1896	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	82
PID 2092 wrote to memory of 2196	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	84
PID 2092 wrote to memory of 2196	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	84
PID 2092 wrote to memory of 2196	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	84
PID 2092 wrote to memory of 3012	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	86
PID 2092 wrote to memory of 3012	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	86
PID 2092 wrote to memory of 3012	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	86
PID 2092 wrote to memory of 2680	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	88
PID 2092 wrote to memory of 2680	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	88
PID 2092 wrote to memory of 2680	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	88
PID 2092 wrote to memory of 2664	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	90
PID 2092 wrote to memory of 2664	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	90
PID 2092 wrote to memory of 2664	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	90
PID 2092 wrote to memory of 3672	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	93
PID 2092 wrote to memory of 3672	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	93
PID 2092 wrote to memory of 3672	2092	2025-01-29_73adee93e8587e719784949652006c31_mafia.exe	93
PID 4516 wrote to memory of 2936	4516	chrmgspr.exe	100
PID 4516 wrote to memory of 2936	4516	chrmgspr.exe	100
PID 4516 wrote to memory of 2936	4516	chrmgspr.exe	100
PID 4516 wrote to memory of 2936	4516	chrmgspr.exe	100
PID 4516 wrote to memory of 2936	4516	chrmgspr.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-29_73adee93e8587e719784949652006c31_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_73adee93e8587e719784949652006c31_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qcyyuzog\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\chrmgspr.exe" C:\Windows\SysWOW64\qcyyuzog\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qcyyuzog binPath= "C:\Windows\SysWOW64\qcyyuzog\chrmgspr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_73adee93e8587e719784949652006c31_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qcyyuzog "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qcyyuzog
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2664
- 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:3672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 652
  2⤵
  - Program crash
  PID:2992

C:\Windows\SysWOW64\qcyyuzog\chrmgspr.exe
C:\Windows\SysWOW64\qcyyuzog\chrmgspr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_73adee93e8587e719784949652006c31_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4516 -s 512
  2⤵
  - Program crash
  PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2092 -ip 2092
1⤵
PID:216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4516 -ip 4516
1⤵
PID:996

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\chrmgspr.exe

Filesize
14.9MB

MD5
3a65e8941ab0d10e5cbf23560d6e6f7c

SHA1
ca9a25ba4b1b4604fe972a39e7016c823ba37715

SHA256
7a7594ec18813fec01834b87b561f86948de93f4febb21711152609a578531cc

SHA512
4c3ad774b448571f249c98acb794302acb5f9693cb8adf1fc059ce4cf97118d199bc134cf548a78084822aa96e0ae4c22e87561b02a63eb88c1c945b534bec59

Download Submit
memory/2092-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2092-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2092-2-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/2092-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2092-8-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/2092-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/2936-14-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/2936-16-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/2936-17-0x00000000007A0000-0x00000000007B5000-memory.dmp

Filesize
84KB

Download
memory/4516-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4516-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4516-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4516-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads