tofsee | a36378ea861fc985ea84824587384cd4da4c8c3bfa348ef21675c6062558198e

General

Target

2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe
Size

14.5MB
MD5

8f03907ba4f5beb91afca249985588b5
SHA1

285442119288693a48d49fac770b5fd1463bf9b0
SHA256

a36378ea861fc985ea84824587384cd4da4c8c3bfa348ef21675c6062558198e
SHA512

6cd27e000c15464c3d0b34ba8f0f3277dd7e9dc0840e95a4c55e5853f243b2cb40e2f19a8efe248b4a7923282a09a6dab8338c695a350786e3f7792d1fcf1b4a
SSDEEP

6144:byXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:byXzN8pXAdbbyyZtZfMMMMMMMb

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
3664	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
1408	rtofwqxq.exe

Launches sc.exe 3 IoCs

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

pid	Process
2940	sc.exe
4376	sc.exe
2748	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
3540	2792	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	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	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 4632	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	91
PID 2792 wrote to memory of 4632	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	91
PID 2792 wrote to memory of 4632	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	91
PID 2792 wrote to memory of 1908	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	93
PID 2792 wrote to memory of 1908	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	93
PID 2792 wrote to memory of 1908	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	93
PID 2792 wrote to memory of 2940	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	95
PID 2792 wrote to memory of 2940	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	95
PID 2792 wrote to memory of 2940	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	95
PID 2792 wrote to memory of 4376	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	97
PID 2792 wrote to memory of 4376	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	97
PID 2792 wrote to memory of 4376	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	97
PID 2792 wrote to memory of 2748	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	99
PID 2792 wrote to memory of 2748	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	99
PID 2792 wrote to memory of 2748	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	99
PID 2792 wrote to memory of 3664	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	102
PID 2792 wrote to memory of 3664	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	102
PID 2792 wrote to memory of 3664	2792	2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vbbavwwp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rtofwqxq.exe" C:\Windows\SysWOW64\vbbavwwp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vbbavwwp binPath= "C:\Windows\SysWOW64\vbbavwwp\rtofwqxq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vbbavwwp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4376
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vbbavwwp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- 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:3664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 668
  2⤵
  - Program crash
  PID:3540

C:\Windows\SysWOW64\vbbavwwp\rtofwqxq.exe
C:\Windows\SysWOW64\vbbavwwp\rtofwqxq.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8f03907ba4f5beb91afca249985588b5_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2792 -ip 2792
1⤵
PID:4496

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\rtofwqxq.exe

Filesize
14.8MB

MD5
47187bdaedb9a9c19d169ed8b1ba5c58

SHA1
d45993bb8b11851db8f5a27a893a264b263881f4

SHA256
f649c9c8924d85e6bbd646ced6c95a56fec4ffd027eeba5060ca5bd9006ded24

SHA512
22318fc0c158c7e67bd55086db2e105e8634025868560fcea195c6f1ad4ed58b3e59a880ca0fba567f4e4f5e6f560678f208b5ff5b5044b6b6275d8582461507

Download Submit
memory/2792-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2792-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2792-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2792-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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