tofsee | 00b23692bd6690523e4b220291aa8cba00621233aa6b7173f39340140b5c56ba

General

Target

2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe
Size

12.8MB
MD5

fa7712b50791b07d5dbbe48526c34ac1
SHA1

f457a42707e66c05d103b91695d31ff85114caa4
SHA256

00b23692bd6690523e4b220291aa8cba00621233aa6b7173f39340140b5c56ba
SHA512

21b7de6d6c6b39e8f9daed599e1a7c974e194717a0f82e40c16aea153c06f72597b8f2e6c3917e913da3a6ca8b0139ed7d4ef9d915e1c8e1e9e41ffda29c9560
SSDEEP

6144:JXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:JXzuKJ8GD96ySzTcANnQMMMMMMMb

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
1568	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:

2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe

Executes dropped EXE 1 IoCs

Processes:

tannqbto.exe

pid	Process
4016	tannqbto.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
3052	sc.exe
728	sc.exe
1636	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
2352	4712	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

Processes:

cmd.exesc.exesc.exesc.exenetsh.exe2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_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	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe

description	pid	Process	procid_target
PID 4712 wrote to memory of 4928	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	91
PID 4712 wrote to memory of 4928	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	91
PID 4712 wrote to memory of 4928	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	91
PID 4712 wrote to memory of 4836	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	93
PID 4712 wrote to memory of 4836	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	93
PID 4712 wrote to memory of 4836	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	93
PID 4712 wrote to memory of 3052	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	95
PID 4712 wrote to memory of 3052	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	95
PID 4712 wrote to memory of 3052	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	95
PID 4712 wrote to memory of 728	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	97
PID 4712 wrote to memory of 728	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	97
PID 4712 wrote to memory of 728	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	97
PID 4712 wrote to memory of 1636	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	99
PID 4712 wrote to memory of 1636	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	99
PID 4712 wrote to memory of 1636	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	99
PID 4712 wrote to memory of 1568	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	102
PID 4712 wrote to memory of 1568	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	102
PID 4712 wrote to memory of 1568	4712	2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vjmevjyu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tannqbto.exe" C:\Windows\SysWOW64\vjmevjyu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vjmevjyu binPath= "C:\Windows\SysWOW64\vjmevjyu\tannqbto.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vjmevjyu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vjmevjyu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1636
- 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:1568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 1224
  2⤵
  - Program crash
  PID:2352

C:\Windows\SysWOW64\vjmevjyu\tannqbto.exe
C:\Windows\SysWOW64\vjmevjyu\tannqbto.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-23_fa7712b50791b07d5dbbe48526c34ac1_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4712 -ip 4712
1⤵
PID:1068

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\tannqbto.exe

Filesize
13.3MB

MD5
c634d0662612e93ce5abf46ab87b8aaf

SHA1
faa33b71334e26c7259a5a51f26caee8b78770f3

SHA256
12d643bf2a6673b73ce11471c9e1826888d0978b610d4c5315a5f4ffe8e29119

SHA512
316ba03da6a87e92f587a9e0e5713ccc88d5bacc33a13767b6669992e90b7d73e6160611d35a120798b79b96e7e34b0e5740d9c5ca030725d3917eed8b8c5628

Download Submit
memory/4712-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/4712-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4712-6-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4712-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4712-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4712-8-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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