tofsee | 2364fe2171a548f445d8fd35b0d13c6107fef86c78427c04eb625acd80663125

General

Target

2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe
Size

13.1MB
MD5

6697ace66a8bbebee54ec3ccfdc544bb
SHA1

7d1394713123831c4e6ca86cc43dd244e11374df
SHA256

2364fe2171a548f445d8fd35b0d13c6107fef86c78427c04eb625acd80663125
SHA512

b4552d787a25727829c0d31c841df37957059442e2a185c870109d71e20d3680b1e48a23b885956e08ee1accb8835ac04e2c5bad51c34bb3c610acd37e405fb1
SSDEEP

6144:HyXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:HyXzN8pXAdbbyyZtZfMMMMMMMb

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
2572	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:

2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe

Executes dropped EXE 1 IoCs

Processes:

kbuxerdc.exe

pid	Process
1656	kbuxerdc.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
3264	sc.exe
4492	sc.exe
64	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
4388	4164	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.exe2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_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	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe

description	pid	Process	procid_target
PID 4164 wrote to memory of 4360	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	91
PID 4164 wrote to memory of 4360	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	91
PID 4164 wrote to memory of 4360	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	91
PID 4164 wrote to memory of 744	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	93
PID 4164 wrote to memory of 744	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	93
PID 4164 wrote to memory of 744	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	93
PID 4164 wrote to memory of 3264	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	95
PID 4164 wrote to memory of 3264	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	95
PID 4164 wrote to memory of 3264	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	95
PID 4164 wrote to memory of 4492	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	97
PID 4164 wrote to memory of 4492	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	97
PID 4164 wrote to memory of 4492	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	97
PID 4164 wrote to memory of 64	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	99
PID 4164 wrote to memory of 64	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	99
PID 4164 wrote to memory of 64	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	99
PID 4164 wrote to memory of 2572	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	102
PID 4164 wrote to memory of 2572	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	102
PID 4164 wrote to memory of 2572	4164	2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zphvqtyr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kbuxerdc.exe" C:\Windows\SysWOW64\zphvqtyr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zphvqtyr binPath= "C:\Windows\SysWOW64\zphvqtyr\kbuxerdc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zphvqtyr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zphvqtyr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:64
- 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:2572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4164 -s 1176
  2⤵
  - Program crash
  PID:4388

C:\Windows\SysWOW64\zphvqtyr\kbuxerdc.exe
C:\Windows\SysWOW64\zphvqtyr\kbuxerdc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-28_6697ace66a8bbebee54ec3ccfdc544bb_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:1656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4164 -ip 4164
1⤵
PID:1420

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\kbuxerdc.exe

Filesize
11.8MB

MD5
7c191e87fe66fbad011ca379d2a1c782

SHA1
3b71a83426913d35e18598e74b7ab7aeb4f03e97

SHA256
6e6e8af7fd81ea46f116b723d36fac4e865576a02361919173e237132efe97da

SHA512
fc503b1e6c671feb56ff69a6ce24faf00a958da1530bc551f53bb2482bd599a814114a3b9e704dd942db572154fea10ce63aa7db5b1bcfb8fdce818a2b10a38f

Download Submit
memory/4164-1-0x00000000004A0000-0x00000000005A0000-memory.dmp

Filesize
1024KB

Download
memory/4164-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4164-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4164-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4164-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4164-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads