tofsee | e8ae4d92a862230549c7d6f0992f2d83f07520c6716f0db33710a09dfe3f4c04

General

Target
2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe
Size 11.0MB
Sample241202-whe2dsvngy
SHA256 e8ae4d92a862230549c7d6f0992f2d83f07520c6716f0db33710a09dfe3f4c04
MD5 381220f55364f3e5f8b90d364c4e261e
SHA1 93afa3203eb7a1031f934fcac6f9d8b0989a8aa3
SHA512 9be95c05b73f786203a8d3945f081a24c9c4ac6fb3665a57ea212a108c15070aad6fe2c70906231bdb4132d6f557fdecbbe91e3fe26e7b18b8f1971e08d089ad
SSDEEP 6144:tXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:tXzuKJ8GD96ySzTcANnQMMMMMMMb
MD5 SHA1 SHA512 SSDEEP

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
868	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	hyruboaz.exe

Launches sc.exe 3 IoCs

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

pid	Process
2084	sc.exe
2304	sc.exe
3936	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
1316	3444	WerFault.exe	84

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	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	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 4848	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	100
PID 3444 wrote to memory of 4848	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	100
PID 3444 wrote to memory of 4848	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	100
PID 3444 wrote to memory of 1664	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	102
PID 3444 wrote to memory of 1664	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	102
PID 3444 wrote to memory of 1664	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	102
PID 3444 wrote to memory of 2304	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	104
PID 3444 wrote to memory of 2304	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	104
PID 3444 wrote to memory of 2304	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	104
PID 3444 wrote to memory of 3936	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	106
PID 3444 wrote to memory of 3936	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	106
PID 3444 wrote to memory of 3936	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	106
PID 3444 wrote to memory of 2084	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	108
PID 3444 wrote to memory of 2084	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	108
PID 3444 wrote to memory of 2084	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	108
PID 3444 wrote to memory of 868	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	111
PID 3444 wrote to memory of 868	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	111
PID 3444 wrote to memory of 868	3444	2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe	111

C:\Users\Admin\AppData\Local\Temp\2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bjggssus\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hyruboaz.exe" C:\Windows\SysWOW64\bjggssus\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bjggssus binPath= "C:\Windows\SysWOW64\bjggssus\hyruboaz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bjggssus "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bjggssus
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2084
- 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:868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 1180
  2⤵
  - Program crash
  PID:1316

C:\Windows\SysWOW64\bjggssus\hyruboaz.exe
C:\Windows\SysWOW64\bjggssus\hyruboaz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-02_381220f55364f3e5f8b90d364c4e261e_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:2668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3444 -ip 3444
1⤵
PID:1116

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

hyruboaz.exe

Path C:\Users\Admin\AppData\Local\Temp\hyruboaz.exe
Size 13.6MB
SHA256 4100a2ec989900ab3381a49de4486a2e1e855dfd9dc4d743c9b3fab628b7b782
MD5 ef6434cb81e5f9dab473d955d43e5214
SHA1 fad7d8a74c8e9956629b836c27cc1068a50b8a9f
SHA512 794c6bfd66876a311289a3fcae290fc9a4ffce29a871c58f2aa706b7759f065285c3d9b57c010e4a75b067b0423612f4e6793cc404bd808c555b978264230b6b
SSDEEP 6144:OXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:OXzuKJ8GD96ySzTcANnQMMMMMMMb
MD5 SHA1 SHA512 SSDEEP

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memory/3444-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

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memory/3444-2-0x0000000000490000-0x00000000004A3000-memory.dmp

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memory/3444-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/3444-7-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/3444-9-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/3444-8-0x0000000000490000-0x00000000004A3000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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