tofsee | dd5b575cf505ec7b9589b110df66c9c7f508cce7241086eff387040beeab65da

General

Target

2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe
Size

12.0MB
MD5

2b01b8549776e835eb9764a447a8a8c6
SHA1

30bebb315c168df16508f91dca22891de9860c7e
SHA256

dd5b575cf505ec7b9589b110df66c9c7f508cce7241086eff387040beeab65da
SHA512

1f9d77fb159f52651f3adc504ea921ff90c2371cd1d100ddcca7e6f107e483e7afc74197655e418b8ff6fa01ca47215da3e85699bdef0f09ea24a52df48422f5
SSDEEP

6144:o+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:o+r1IeSXMXc7LlxWV4Ug97GZ+ej

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
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
440	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\yxbftxdv\ImagePath = "C:\\Windows\\SysWOW64\\yxbftxdv\\ehppnlpy.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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe

Deletes itself 1 IoCs

pid	Process
3460	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3352	ehppnlpy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3352 set thread context of 3460	3352	ehppnlpy.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3784	sc.exe
388	sc.exe
2388	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

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	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ehppnlpy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 5060	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	89
PID 2596 wrote to memory of 5060	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	89
PID 2596 wrote to memory of 5060	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	89
PID 2596 wrote to memory of 312	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	91
PID 2596 wrote to memory of 312	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	91
PID 2596 wrote to memory of 312	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	91
PID 2596 wrote to memory of 3784	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	93
PID 2596 wrote to memory of 3784	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	93
PID 2596 wrote to memory of 3784	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	93
PID 2596 wrote to memory of 388	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	95
PID 2596 wrote to memory of 388	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	95
PID 2596 wrote to memory of 388	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	95
PID 2596 wrote to memory of 2388	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	97
PID 2596 wrote to memory of 2388	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	97
PID 2596 wrote to memory of 2388	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	97
PID 2596 wrote to memory of 440	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	100
PID 2596 wrote to memory of 440	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	100
PID 2596 wrote to memory of 440	2596	2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe	100
PID 3352 wrote to memory of 3460	3352	ehppnlpy.exe	102
PID 3352 wrote to memory of 3460	3352	ehppnlpy.exe	102
PID 3352 wrote to memory of 3460	3352	ehppnlpy.exe	102
PID 3352 wrote to memory of 3460	3352	ehppnlpy.exe	102
PID 3352 wrote to memory of 3460	3352	ehppnlpy.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yxbftxdv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ehppnlpy.exe" C:\Windows\SysWOW64\yxbftxdv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yxbftxdv binPath= "C:\Windows\SysWOW64\yxbftxdv\ehppnlpy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yxbftxdv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yxbftxdv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2388
- 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:440

C:\Windows\SysWOW64\yxbftxdv\ehppnlpy.exe
C:\Windows\SysWOW64\yxbftxdv\ehppnlpy.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-08-24_2b01b8549776e835eb9764a447a8a8c6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3460

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

Loading Replay Monitor...

Downloads

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

Filesize
12.1MB

MD5
6659c641a50ea325c3b1cef6b7f04b7f

SHA1
74bb3b4a0c89c2a4171149f2734042733e4b8fb2

SHA256
64b400fca43fb53b0e90bc839a444289513fc2191d5ebeae51519f44c20a4cff

SHA512
fc69dc864719c62d233b0739bfa19d4c4e2740d3020cd1c1dfdedee98a56c7aefc7892ba2bad727f92aaae6ad879f0c37638cf62177a1e1f8a3a731715d5a61d

Download Submit
memory/2596-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2596-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2596-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2596-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3352-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3352-16-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3352-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3460-11-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/3460-14-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/3460-15-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/3460-17-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download
memory/3460-18-0x0000000001000000-0x0000000001015000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads