tofsee | 3741ce9fe249af187edf138e87543844f539fcb9b539d81e97832b44fb7dfe29

General

Target

2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe
Size

13.3MB
MD5

6a78c96bfc6f9c9957e4fc753858e158
SHA1

9f1c1ed1e963110addd477cf2c70e633fb889c3e
SHA256

3741ce9fe249af187edf138e87543844f539fcb9b539d81e97832b44fb7dfe29
SHA512

e195b4e519b87817cc4444dc171414e7d93133c05d1a610235ee4047a18f22620b6b7b88bb4589811054b6c1fab8cf63ffb923dc9500cc1cdb86c44106f5434d
SSDEEP

6144:lXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:lXzuKJ8GD96ySzTcANnQMMMMMMMb

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
4840	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
2292	lymprrpc.exe

Launches sc.exe 3 IoCs

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

pid	Process
2904	sc.exe
3096	sc.exe
3180	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
3224	3524	WerFault.exe	83

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	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_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 3524 wrote to memory of 2312	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	93
PID 3524 wrote to memory of 2312	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	93
PID 3524 wrote to memory of 2312	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	93
PID 3524 wrote to memory of 4716	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	95
PID 3524 wrote to memory of 4716	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	95
PID 3524 wrote to memory of 4716	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	95
PID 3524 wrote to memory of 2904	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	97
PID 3524 wrote to memory of 2904	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	97
PID 3524 wrote to memory of 2904	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	97
PID 3524 wrote to memory of 3096	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	99
PID 3524 wrote to memory of 3096	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	99
PID 3524 wrote to memory of 3096	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	99
PID 3524 wrote to memory of 3180	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	101
PID 3524 wrote to memory of 3180	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	101
PID 3524 wrote to memory of 3180	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	101
PID 3524 wrote to memory of 4840	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	104
PID 3524 wrote to memory of 4840	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	104
PID 3524 wrote to memory of 4840	3524	2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe	104

C:\Users\Admin\AppData\Local\Temp\2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vkqzutmu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lymprrpc.exe" C:\Windows\SysWOW64\vkqzutmu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vkqzutmu binPath= "C:\Windows\SysWOW64\vkqzutmu\lymprrpc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vkqzutmu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vkqzutmu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3180
- 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:4840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 1172
  2⤵
  - Program crash
  PID:3224

C:\Windows\SysWOW64\vkqzutmu\lymprrpc.exe
C:\Windows\SysWOW64\vkqzutmu\lymprrpc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-02_6a78c96bfc6f9c9957e4fc753858e158_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3524 -ip 3524
1⤵
PID:3452

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\lymprrpc.exe

Filesize
12.8MB

MD5
1857be391bd96e85faa19e079fa6815e

SHA1
76604e275808d58809b498647de22a7e0e803144

SHA256
f941d6f49383eaa3b3355ebd8e6b22af5743cf2c4e231dabd3e1ef5133b6488a

SHA512
5c8ff52d4a2bbe615fbedfd55750ce123b986a3ad3d7cd6d06df53713901f30fd28de4edb377d3cf5af5e3197338287c63b87a751248a4b8418a53f4f4dc3a13

Download Submit
memory/3524-1-0x0000000000840000-0x0000000000940000-memory.dmp

Filesize
1024KB

Download
memory/3524-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3524-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3524-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3524-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads