tofsee | bb55c73dc38027d6366b3403767f6036bd8671771183040d8db36e8da2eb6ec1

General

Target

2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe
Size

10.0MB
MD5

3a2ed34c3dc624d64a485f8634dde112
SHA1

7b8b4aece7c01011127c489c5cd97130ba6f483b
SHA256

bb55c73dc38027d6366b3403767f6036bd8671771183040d8db36e8da2eb6ec1
SHA512

d56e7f26a625e4a2791dee32feb5e3ffdd8db041196a177287d4e09e220b78a9306013f0f23f9d9f41d6d9803f39211d35d5eae17ad3b9631597ad823996282e
SSDEEP

6144:oXxZveEydmxZnXNMRaTuMUifWLKxNMMMMMMMbgb:oXzvvygxZnXxr+mxNMMMMMMMbg

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
4524	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
1732	zgttwhzu.exe

Launches sc.exe 3 IoCs

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

pid	Process
4504	sc.exe
2860	sc.exe
916	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
1220	316	WerFault.exe	83

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	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 3476	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	93
PID 316 wrote to memory of 3476	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	93
PID 316 wrote to memory of 3476	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	93
PID 316 wrote to memory of 4068	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	95
PID 316 wrote to memory of 4068	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	95
PID 316 wrote to memory of 4068	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	95
PID 316 wrote to memory of 4504	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	97
PID 316 wrote to memory of 4504	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	97
PID 316 wrote to memory of 4504	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	97
PID 316 wrote to memory of 2860	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	99
PID 316 wrote to memory of 2860	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	99
PID 316 wrote to memory of 2860	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	99
PID 316 wrote to memory of 916	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	101
PID 316 wrote to memory of 916	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	101
PID 316 wrote to memory of 916	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	101
PID 316 wrote to memory of 4524	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	104
PID 316 wrote to memory of 4524	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	104
PID 316 wrote to memory of 4524	316	2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe	104

C:\Users\Admin\AppData\Local\Temp\2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iikluery\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zgttwhzu.exe" C:\Windows\SysWOW64\iikluery\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iikluery binPath= "C:\Windows\SysWOW64\iikluery\zgttwhzu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iikluery "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iikluery
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:916
- 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:4524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 1036
  2⤵
  - Program crash
  PID:1220

C:\Windows\SysWOW64\iikluery\zgttwhzu.exe
C:\Windows\SysWOW64\iikluery\zgttwhzu.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-07_3a2ed34c3dc624d64a485f8634dde112_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 316 -ip 316
1⤵
PID:1328

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\zgttwhzu.exe

Filesize
10.4MB

MD5
87b4725bfc2e6db345e95230c7f10caf

SHA1
151dc85018e2f9b5bb5fdff6a7b34e8a9616168e

SHA256
ee7fa4b4a975a54f61f19a27d79d33c5edd20ddee5f7c1c7c99f076a37a02dd4

SHA512
c26ec39f71515aa8b6561218a6108580a1589f9097b2c3cb5b9456788dc7ac09ae6b5231609062555cad264ac6e7e23f43fe1da02fa21f9fba42efb7f8fa5b0f

Download Submit
memory/316-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/316-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/316-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/316-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/316-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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