tofsee | cc83632ac03fe792612d1925a97d4756d4b591144d9e0f581669785341640446

General

Target

2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe
Size

12.6MB
MD5

f9175002a66d43566c7918c00468dfee
SHA1

fde81262c4b4b8105ec0b0e6c245152fdcaf1079
SHA256

cc83632ac03fe792612d1925a97d4756d4b591144d9e0f581669785341640446
SHA512

7a6a9e43e3f7cf0c78c0fa2bb14d7d987be368952a8f66526fcdbaf8bd4c5ac2f9ca92ae0efab99806dc5a4a596b33125f4bbccdce5f229a0701b96e8c87ced6
SSDEEP

6144:FyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:FyXzN8pXAdbbyyZtZfMMMMMMMb

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
3340	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
4472	rmtqpmij.exe

Launches sc.exe 3 IoCs

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

pid	Process
2940	sc.exe
1524	sc.exe
1828	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 1 IoCs

pid	pid_target	Process	procid_target
2524	728	WerFault.exe	81

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

description	ioc	Process
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	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.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

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 216	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	91
PID 728 wrote to memory of 216	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	91
PID 728 wrote to memory of 216	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	91
PID 728 wrote to memory of 2468	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	93
PID 728 wrote to memory of 2468	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	93
PID 728 wrote to memory of 2468	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	93
PID 728 wrote to memory of 1524	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	95
PID 728 wrote to memory of 1524	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	95
PID 728 wrote to memory of 1524	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	95
PID 728 wrote to memory of 1828	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	97
PID 728 wrote to memory of 1828	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	97
PID 728 wrote to memory of 1828	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	97
PID 728 wrote to memory of 2940	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	99
PID 728 wrote to memory of 2940	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	99
PID 728 wrote to memory of 2940	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	99
PID 728 wrote to memory of 3340	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	102
PID 728 wrote to memory of 3340	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	102
PID 728 wrote to memory of 3340	728	2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fywilgjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rmtqpmij.exe" C:\Windows\SysWOW64\fywilgjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fywilgjb binPath= "C:\Windows\SysWOW64\fywilgjb\rmtqpmij.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fywilgjb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fywilgjb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- 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:3340
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 1036
  2⤵
  - Program crash
  PID:2524

C:\Windows\SysWOW64\fywilgjb\rmtqpmij.exe
C:\Windows\SysWOW64\fywilgjb\rmtqpmij.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_f9175002a66d43566c7918c00468dfee_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 728 -ip 728
1⤵
PID:2952

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\rmtqpmij.exe

Filesize
12.5MB

MD5
86974685dd9f0e61cfb8d19cfec0ba37

SHA1
bb3ddecd8499618d75962797419ee66bff3815ba

SHA256
cab707cb4bbdb51f826ac9ed4e38ff3f6566b11cc2e04d88fd730675233fe60a

SHA512
53f54e582fccd3a4aeb70f1cb49e0e481ea4a56d53a0311bf422c4fb26f304ec017864de2fbc46d7186a24563b0f1f52b63ac351b4954b68aedf624f46ee1ae6

Download Submit
memory/728-1-0x0000000000810000-0x0000000000910000-memory.dmp

Filesize
1024KB

Download
memory/728-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/728-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/728-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/728-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/728-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads