tofsee | 243938a63bcc06a2b08d3801666db579d1ea72aa25c41c772b6a98c9b2d42373

General

Target

2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe
Size

12.6MB
MD5

81a382a5576df8f00829954dd03dcd9a
SHA1

e4af255bf6240265fa8cb8f9bb8a6adef61cbbf6
SHA256

243938a63bcc06a2b08d3801666db579d1ea72aa25c41c772b6a98c9b2d42373
SHA512

4ce8399b9bdacd33df2836c087dcf4dbd2eec1aed5763e988350121113b88f21eee00eebf01886e6b3f598c0460fc2702afaff03d0171db069634928c4d4ea3f
SSDEEP

6144:RXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:RXzuKJ8GD96ySzTcANnQMMMMMMMb

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
1956	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	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
1652	bnoidzax.exe

Launches sc.exe 3 IoCs

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

pid	Process
1952	sc.exe
1820	sc.exe
5112	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
924	3124	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	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_81a382a5576df8f00829954dd03dcd9a_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

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 4280	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	91
PID 3124 wrote to memory of 4280	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	91
PID 3124 wrote to memory of 4280	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	91
PID 3124 wrote to memory of 2020	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	93
PID 3124 wrote to memory of 2020	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	93
PID 3124 wrote to memory of 2020	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	93
PID 3124 wrote to memory of 1952	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	95
PID 3124 wrote to memory of 1952	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	95
PID 3124 wrote to memory of 1952	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	95
PID 3124 wrote to memory of 1820	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	97
PID 3124 wrote to memory of 1820	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	97
PID 3124 wrote to memory of 1820	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	97
PID 3124 wrote to memory of 5112	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	99
PID 3124 wrote to memory of 5112	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	99
PID 3124 wrote to memory of 5112	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	99
PID 3124 wrote to memory of 1956	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	102
PID 3124 wrote to memory of 1956	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	102
PID 3124 wrote to memory of 1956	3124	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\htxpwzje\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bnoidzax.exe" C:\Windows\SysWOW64\htxpwzje\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create htxpwzje binPath= "C:\Windows\SysWOW64\htxpwzje\bnoidzax.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description htxpwzje "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start htxpwzje
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5112
- 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:1956
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 596
  2⤵
  - Program crash
  PID:924

C:\Windows\SysWOW64\htxpwzje\bnoidzax.exe
C:\Windows\SysWOW64\htxpwzje\bnoidzax.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:1652

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3124 -ip 3124
1⤵
PID:740

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\bnoidzax.exe

Filesize
10.2MB

MD5
85cd6cab46e084b40cae52317cbd9960

SHA1
ba201eab3c1907af84cc6581ed2409780e31b4d7

SHA256
4943147736181d97cc9fb0e4a65cafec62d559745614a064c8bd03f713173939

SHA512
24f0373c60a3e693ed402a130bf87913c06f95162c1e020380380a17222f4ca649293343b03ae8bb0933f074b36787e3010c2867a74175bcdfdf150f5ffb6d93

Download Submit
memory/3124-1-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/3124-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3124-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3124-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3124-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads