tofsee | 3f198854ec2a1e8720d308e6543f507b8313696f4c5a659fafffb0e355f9ebf4

General

Target

2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe
Size

14.4MB
MD5

b29c68e036c667eaa53f1d05250810aa
SHA1

e7dd2c9c7126de966d0b6dc0454759dcad7e3184
SHA256

3f198854ec2a1e8720d308e6543f507b8313696f4c5a659fafffb0e355f9ebf4
SHA512

23a79bfbf7ff53e7b4aaee4b96b78d436d58ae966d6d17184fc39784f03283689f51e8460ace2f98ff92e435721dec49a34fb1122f08aa8cbac8b5b01c02ac4e
SSDEEP

49152:eVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGv:eVdrl/9zG

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2352	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\rjgmtrg\ImagePath = "C:\\Windows\\SysWOW64\\rjgmtrg\\pflefndm.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	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe

Deletes itself 1 IoCs

pid	Process
4948	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3324	pflefndm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3324 set thread context of 4948	3324	pflefndm.exe	110

Launches sc.exe 3 IoCs

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

pid	Process
2664	sc.exe
1452	sc.exe
620	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
964	2184	WerFault.exe	83
4960	3324	WerFault.exe	102

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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pflefndm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2676	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	91
PID 2184 wrote to memory of 2676	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	91
PID 2184 wrote to memory of 2676	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	91
PID 2184 wrote to memory of 3680	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	93
PID 2184 wrote to memory of 3680	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	93
PID 2184 wrote to memory of 3680	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	93
PID 2184 wrote to memory of 2664	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	95
PID 2184 wrote to memory of 2664	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	95
PID 2184 wrote to memory of 2664	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	95
PID 2184 wrote to memory of 1452	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	97
PID 2184 wrote to memory of 1452	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	97
PID 2184 wrote to memory of 1452	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	97
PID 2184 wrote to memory of 620	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	100
PID 2184 wrote to memory of 620	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	100
PID 2184 wrote to memory of 620	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	100
PID 2184 wrote to memory of 2352	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	103
PID 2184 wrote to memory of 2352	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	103
PID 2184 wrote to memory of 2352	2184	2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe	103
PID 3324 wrote to memory of 4948	3324	pflefndm.exe	110
PID 3324 wrote to memory of 4948	3324	pflefndm.exe	110
PID 3324 wrote to memory of 4948	3324	pflefndm.exe	110
PID 3324 wrote to memory of 4948	3324	pflefndm.exe	110
PID 3324 wrote to memory of 4948	3324	pflefndm.exe	110

C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rjgmtrg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pflefndm.exe" C:\Windows\SysWOW64\rjgmtrg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rjgmtrg binPath= "C:\Windows\SysWOW64\rjgmtrg\pflefndm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rjgmtrg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rjgmtrg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:620
- 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:2352
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 1036
  2⤵
  - Program crash
  PID:964

C:\Windows\SysWOW64\rjgmtrg\pflefndm.exe
C:\Windows\SysWOW64\rjgmtrg\pflefndm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-04_b29c68e036c667eaa53f1d05250810aa_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3324
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 520
  2⤵
  - Program crash
  PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2184 -ip 2184
1⤵
PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3324 -ip 3324
1⤵
PID:2320

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

Replay Monitor

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Downloads

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

Filesize
10.7MB

MD5
cb9be8913ddc5d26d0319003bcbccf4d

SHA1
b5ebaae3ebf0a083453a2aa5052445f3cd17acbd

SHA256
7e0ee6d6b5436d186d3d749a7642bf03d7eea2a4e419e3d63129dc37e8b39004

SHA512
dd508ec0186e16920a91410e9e11123fad6129de1148b431eb53553048a2424c777fcdbe06c6823ceb277d248eb830081906ac6fd240e47d5383ccba2c713474

Download Submit
memory/2184-8-0x0000000002260000-0x0000000002273000-memory.dmp

Filesize
76KB

Download
memory/2184-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2184-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2184-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2184-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2184-2-0x0000000002260000-0x0000000002273000-memory.dmp

Filesize
76KB

Download
memory/3324-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3324-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3324-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3324-19-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4948-14-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/4948-16-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download
memory/4948-17-0x00000000006A0000-0x00000000006B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads