tofsee | f6857dbda764a9e366f4ba065eab36fc5f1bceec4d9af02cc2a81cf69f29a034

General

Target

2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe
Size

14.0MB
MD5

5403a883573c96f0e4c7fdf5c023069a
SHA1

f7dd588c14c1173492348a8a201ec3a006d3472a
SHA256

f6857dbda764a9e366f4ba065eab36fc5f1bceec4d9af02cc2a81cf69f29a034
SHA512

7de7b29996528d342483e22102b4187156766304e4bc7cbfb855954bcbb4a96546346786b130329f4a06c6eb3ac2af764f0cbcf0114ef02eeea6c01b010f377a
SSDEEP

6144:pyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:pyXzN8pXAdbbyyZtZfMMMMMMMb

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

Processes:

netsh.exe

pid	Process
4544	netsh.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

Processes:

2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe

Executes dropped EXE 1 IoCs

Processes:

tsielhm.exe

pid	Process
5112	tsielhm.exe

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2688	sc.exe
1564	sc.exe
624	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

Processes:

netsh.exe

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 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
920	4860	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 7 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

Processes:

cmd.exesc.exesc.exesc.exenetsh.exe2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.execmd.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe

description	pid	Process	procid_target
PID 4860 wrote to memory of 2708	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	99
PID 4860 wrote to memory of 2708	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	99
PID 4860 wrote to memory of 2708	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	99
PID 4860 wrote to memory of 964	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	101
PID 4860 wrote to memory of 964	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	101
PID 4860 wrote to memory of 964	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	101
PID 4860 wrote to memory of 2688	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	103
PID 4860 wrote to memory of 2688	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	103
PID 4860 wrote to memory of 2688	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	103
PID 4860 wrote to memory of 1564	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	105
PID 4860 wrote to memory of 1564	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	105
PID 4860 wrote to memory of 1564	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	105
PID 4860 wrote to memory of 624	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	107
PID 4860 wrote to memory of 624	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	107
PID 4860 wrote to memory of 624	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	107
PID 4860 wrote to memory of 4544	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	110
PID 4860 wrote to memory of 4544	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	110
PID 4860 wrote to memory of 4544	4860	2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe	110

C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ccgssgnu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tsielhm.exe" C:\Windows\SysWOW64\ccgssgnu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ccgssgnu binPath= "C:\Windows\SysWOW64\ccgssgnu\tsielhm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ccgssgnu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ccgssgnu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:624
- 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:4544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1348
  2⤵
  - Program crash
  PID:920

C:\Windows\SysWOW64\ccgssgnu\tsielhm.exe
C:\Windows\SysWOW64\ccgssgnu\tsielhm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-24_5403a883573c96f0e4c7fdf5c023069a_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:5112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4860 -ip 4860
1⤵
PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

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

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

1

T1562.004

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\tsielhm.exe

Filesize
14.3MB

MD5
d77f59a1e50b9ef977bb20a781c91a56

SHA1
02897a3a66abeceadd70f7e515d7255da735578e

SHA256
d3a364f698323e8418bd22b5b05ab8154de3f9d7d2b49625ad83c787f520be2c

SHA512
756da3e1f34b8fae35daf17a9b7b37a6d6f77461b595723f15700df187f4d8bb47433c8f9b4e39f0484f036497c11faaeac2698d0cea4f6509ff744d0b28e919

Download Submit
memory/4860-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/4860-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4860-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4860-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4860-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4860-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads