tofsee | 1a4811320f690e716efa5a7ed56af191595b018e22a94d084eec6e2c28fd2e12

Analysis

max time kernel
148s
max time network
126s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 00:44

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General

Target

27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe
Size

13.5MB
MD5

27ebcd8b19cb731bd9261b185d134619
SHA1

677b28d035bd663d7e2933b4ec307606988571f7
SHA256

1a4811320f690e716efa5a7ed56af191595b018e22a94d084eec6e2c28fd2e12
SHA512

660f8925d12b955935c0b3b3f0b5498faca63f43c2673a626ae785a0d0eabaacbbf90a0b222bf6abd73e27f7743fa3a2fe5bfb82907e2cc5a33d41ae67f6b416
SSDEEP

98304:nYTPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPH:n

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.6

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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\nxdrulgm = "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
2932	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\nxdrulgm\ImagePath = "C:\\Windows\\SysWOW64\\nxdrulgm\\hhiqwrtf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2808	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2648	hhiqwrtf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2648 set thread context of 2808	2648	hhiqwrtf.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2784	sc.exe
2900	sc.exe
2444	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

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	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	hhiqwrtf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2152	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	29
PID 1744 wrote to memory of 2152	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	29
PID 1744 wrote to memory of 2152	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	29
PID 1744 wrote to memory of 2152	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	29
PID 1744 wrote to memory of 2160	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	31
PID 1744 wrote to memory of 2160	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	31
PID 1744 wrote to memory of 2160	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	31
PID 1744 wrote to memory of 2160	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	31
PID 1744 wrote to memory of 2784	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	33
PID 1744 wrote to memory of 2784	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	33
PID 1744 wrote to memory of 2784	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	33
PID 1744 wrote to memory of 2784	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	33
PID 1744 wrote to memory of 2900	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	35
PID 1744 wrote to memory of 2900	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	35
PID 1744 wrote to memory of 2900	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	35
PID 1744 wrote to memory of 2900	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	35
PID 1744 wrote to memory of 2444	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	37
PID 1744 wrote to memory of 2444	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	37
PID 1744 wrote to memory of 2444	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	37
PID 1744 wrote to memory of 2444	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	37
PID 1744 wrote to memory of 2932	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	40
PID 1744 wrote to memory of 2932	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	40
PID 1744 wrote to memory of 2932	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	40
PID 1744 wrote to memory of 2932	1744	27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe	40
PID 2648 wrote to memory of 2808	2648	hhiqwrtf.exe	42
PID 2648 wrote to memory of 2808	2648	hhiqwrtf.exe	42
PID 2648 wrote to memory of 2808	2648	hhiqwrtf.exe	42
PID 2648 wrote to memory of 2808	2648	hhiqwrtf.exe	42
PID 2648 wrote to memory of 2808	2648	hhiqwrtf.exe	42
PID 2648 wrote to memory of 2808	2648	hhiqwrtf.exe	42

C:\Users\Admin\AppData\Local\Temp\27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nxdrulgm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hhiqwrtf.exe" C:\Windows\SysWOW64\nxdrulgm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nxdrulgm binPath= "C:\Windows\SysWOW64\nxdrulgm\hhiqwrtf.exe /d\"C:\Users\Admin\AppData\Local\Temp\27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nxdrulgm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nxdrulgm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2444
- 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:2932

C:\Windows\SysWOW64\nxdrulgm\hhiqwrtf.exe
C:\Windows\SysWOW64\nxdrulgm\hhiqwrtf.exe /d"C:\Users\Admin\AppData\Local\Temp\27ebcd8b19cb731bd9261b185d134619_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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:2808

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\hhiqwrtf.exe

Filesize
13.4MB

MD5
513f2f2bf491db8b436125b69183f9fa

SHA1
f55906bd2e835758854bddec12fd88cade0dc562

SHA256
3546c89042f4fc140b3033b9a5a5da6d1bf122198e69552754e58558a5797fdf

SHA512
47797bba16b37bf6bceea191bfd9d5839e28e0a0218154125fee5c24d35e97ef34b1aa4f591dec5d8b23303ee010a93b740c5bd95f0433f1d3c4faac74609daf

Download Submit
memory/1744-7-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/1744-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1744-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1744-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1744-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1744-1-0x0000000000D50000-0x0000000000E50000-memory.dmp

Filesize
1024KB

Download
memory/2648-16-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2808-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2808-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads