tofsee | 3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 14:08

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General

Target

JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe
Size

154KB
MD5

1417d3bfef9f5d4b068124f9df853f88
SHA1

e82683043a292e42abd968422ada90f2ad3a6a26
SHA256

3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55
SHA512

dc47bb34b28bc64be767f2569cb88c8d4401b00fc8eeea0b7cc7b4156c3036484b87f308f447c310d1ac40c711a78d4738f1c1cc4619df196ed9e4cc7f23170d
SSDEEP

1536:93XTaOHdVEPzF68p31lwV95rPFlhyg6yrfAvKm5A5XzcwC1sulQoPt/CD6Hnz:9zamdNYlY5Z7y44Sm5A5X2ODo0OHz

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\whctcgdu = "0"	svchost.exe

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
2912	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\whctcgdu\ImagePath = "C:\\Windows\\SysWOW64\\whctcgdu\\nuxvwwma.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2848	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2136	nuxvwwma.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2136 set thread context of 2848	2136	nuxvwwma.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2928	sc.exe
2948	sc.exe
2428	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	nuxvwwma.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2216	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	29
PID 1820 wrote to memory of 2216	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	29
PID 1820 wrote to memory of 2216	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	29
PID 1820 wrote to memory of 2216	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	29
PID 1820 wrote to memory of 2960	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	31
PID 1820 wrote to memory of 2960	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	31
PID 1820 wrote to memory of 2960	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	31
PID 1820 wrote to memory of 2960	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	31
PID 1820 wrote to memory of 2948	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	33
PID 1820 wrote to memory of 2948	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	33
PID 1820 wrote to memory of 2948	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	33
PID 1820 wrote to memory of 2948	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	33
PID 1820 wrote to memory of 2428	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	35
PID 1820 wrote to memory of 2428	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	35
PID 1820 wrote to memory of 2428	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	35
PID 1820 wrote to memory of 2428	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	35
PID 1820 wrote to memory of 2928	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	37
PID 1820 wrote to memory of 2928	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	37
PID 1820 wrote to memory of 2928	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	37
PID 1820 wrote to memory of 2928	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	37
PID 1820 wrote to memory of 2912	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	40
PID 1820 wrote to memory of 2912	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	40
PID 1820 wrote to memory of 2912	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	40
PID 1820 wrote to memory of 2912	1820	JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe	40
PID 2136 wrote to memory of 2848	2136	nuxvwwma.exe	42
PID 2136 wrote to memory of 2848	2136	nuxvwwma.exe	42
PID 2136 wrote to memory of 2848	2136	nuxvwwma.exe	42
PID 2136 wrote to memory of 2848	2136	nuxvwwma.exe	42
PID 2136 wrote to memory of 2848	2136	nuxvwwma.exe	42
PID 2136 wrote to memory of 2848	2136	nuxvwwma.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\whctcgdu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nuxvwwma.exe" C:\Windows\SysWOW64\whctcgdu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create whctcgdu binPath= "C:\Windows\SysWOW64\whctcgdu\nuxvwwma.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description whctcgdu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start whctcgdu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2928
- 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:2912

C:\Windows\SysWOW64\whctcgdu\nuxvwwma.exe
C:\Windows\SysWOW64\whctcgdu\nuxvwwma.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3053837114eb098cb0fde68bb99db208eb69035b9af2c133a83971f05bf22e55.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nuxvwwma.exe

Filesize
12.8MB

MD5
b22727c8b3f9ea312e88fc0232b904bb

SHA1
492411d7059911a7d6722f6e02f83034b298a5cb

SHA256
18b6da2cf9883e0281bd2b0104162fc7e8f73952459158df063d671e4c55d668

SHA512
0f554cad7e85d41309f02fd2ba5f8167b7b89ef39d805be8c991e9c2cfade52b8ad26876c6197f2f2474d0ef6d900f8d625d08b3fcf73e8070ce32d589c4332a

Download Submit
memory/1820-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1820-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1820-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1820-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1820-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1820-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2136-16-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2848-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads