tofsee | 24ef2a9b7b906129acc102cf2831fbeb17be433096e35962bfcface7aae0e7d9

General

Target

2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe
Size

11.6MB
MD5

ec0a775053011547d1f706ba20161f62
SHA1

03cbdcdcce6d9dd80b0436e41df13c9eb3cdafd5
SHA256

24ef2a9b7b906129acc102cf2831fbeb17be433096e35962bfcface7aae0e7d9
SHA512

9253eb19eaae728aa1e240252e73cf95beced8828fefa1da01f37a9918ccdbce8d5eb027d934d5c2e8f9959326376b4050beafd702b6bd44df5721f47bd05d6c
SSDEEP

6144:NXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:NXzuKJ8GD96ySzTcANnQMMMMMMMb

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
1528	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
4352	yyxdocjm.exe

Launches sc.exe 3 IoCs

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

pid	Process
3968	sc.exe
4892	sc.exe
4768	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
1096	212	WerFault.exe	82

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_ec0a775053011547d1f706ba20161f62_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 212 wrote to memory of 3992	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	98
PID 212 wrote to memory of 3992	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	98
PID 212 wrote to memory of 3992	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	98
PID 212 wrote to memory of 2672	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	100
PID 212 wrote to memory of 2672	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	100
PID 212 wrote to memory of 2672	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	100
PID 212 wrote to memory of 3968	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	102
PID 212 wrote to memory of 3968	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	102
PID 212 wrote to memory of 3968	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	102
PID 212 wrote to memory of 4892	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	104
PID 212 wrote to memory of 4892	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	104
PID 212 wrote to memory of 4892	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	104
PID 212 wrote to memory of 4768	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	106
PID 212 wrote to memory of 4768	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	106
PID 212 wrote to memory of 4768	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	106
PID 212 wrote to memory of 1528	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	109
PID 212 wrote to memory of 1528	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	109
PID 212 wrote to memory of 1528	212	2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe	109

C:\Users\Admin\AppData\Local\Temp\2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nhxgexhm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yyxdocjm.exe" C:\Windows\SysWOW64\nhxgexhm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nhxgexhm binPath= "C:\Windows\SysWOW64\nhxgexhm\yyxdocjm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nhxgexhm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nhxgexhm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4768
- 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:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 1036
  2⤵
  - Program crash
  PID:1096

C:\Windows\SysWOW64\nhxgexhm\yyxdocjm.exe
C:\Windows\SysWOW64\nhxgexhm\yyxdocjm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_ec0a775053011547d1f706ba20161f62_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 212 -ip 212
1⤵
PID:2408

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\yyxdocjm.exe

Filesize
14.3MB

MD5
3a6f8fa843c4351b622658a5b20042d8

SHA1
795e59bc3e8a7d30a92e179474434088e6597b1e

SHA256
41091d385bfc0458b369272910d1792b5cdc0865a02a9e5b7bf97b23453aab9b

SHA512
324a0c5102c9e58e85d701c8f246fcdf23cbe088fecb2bf22f39152b92906bb91e52fb4875e99692edd39955033c544aafdf35a523890086d54fb19be2e3e1bb

Download Submit
memory/212-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/212-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/212-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/212-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/212-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/212-7-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads