tofsee | c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 03:15

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General

Target

JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe
Size

184KB
MD5

4bf56f09203f49ce62a8bde95370b5e8
SHA1

8c961cec6688e7ec733f21f85913aa72a6581759
SHA256

c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d
SHA512

d4ae50a9c80f8ccf334d3e4486d79242a38ad52dbc116d89e98f792f26a9f674b99b41116f9028171b6c9d6fbf138940b07c705db7137a2c3b7094b231aff396
SSDEEP

3072:mXmEokfyWlUit95FAOslzEk7sQMXhIbRPsCPZPw3ZWrIUphgC:mbokaWn9oVJESpMhIb5lPS4

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\qmqeiwgf = "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
2728	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\qmqeiwgf\ImagePath = "C:\\Windows\\SysWOW64\\qmqeiwgf\\eupbvhld.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2916	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	eupbvhld.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 2916	2848	eupbvhld.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2760	sc.exe
2296	sc.exe
2836	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.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	eupbvhld.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2348	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	31
PID 2544 wrote to memory of 2348	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	31
PID 2544 wrote to memory of 2348	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	31
PID 2544 wrote to memory of 2348	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	31
PID 2544 wrote to memory of 2504	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	33
PID 2544 wrote to memory of 2504	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	33
PID 2544 wrote to memory of 2504	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	33
PID 2544 wrote to memory of 2504	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	33
PID 2544 wrote to memory of 2760	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	35
PID 2544 wrote to memory of 2760	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	35
PID 2544 wrote to memory of 2760	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	35
PID 2544 wrote to memory of 2760	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	35
PID 2544 wrote to memory of 2296	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	37
PID 2544 wrote to memory of 2296	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	37
PID 2544 wrote to memory of 2296	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	37
PID 2544 wrote to memory of 2296	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	37
PID 2544 wrote to memory of 2836	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	39
PID 2544 wrote to memory of 2836	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	39
PID 2544 wrote to memory of 2836	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	39
PID 2544 wrote to memory of 2836	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	39
PID 2544 wrote to memory of 2728	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	42
PID 2544 wrote to memory of 2728	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	42
PID 2544 wrote to memory of 2728	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	42
PID 2544 wrote to memory of 2728	2544	JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe	42
PID 2848 wrote to memory of 2916	2848	eupbvhld.exe	44
PID 2848 wrote to memory of 2916	2848	eupbvhld.exe	44
PID 2848 wrote to memory of 2916	2848	eupbvhld.exe	44
PID 2848 wrote to memory of 2916	2848	eupbvhld.exe	44
PID 2848 wrote to memory of 2916	2848	eupbvhld.exe	44
PID 2848 wrote to memory of 2916	2848	eupbvhld.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qmqeiwgf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eupbvhld.exe" C:\Windows\SysWOW64\qmqeiwgf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qmqeiwgf binPath= "C:\Windows\SysWOW64\qmqeiwgf\eupbvhld.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qmqeiwgf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qmqeiwgf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- 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:2728

C:\Windows\SysWOW64\qmqeiwgf\eupbvhld.exe
C:\Windows\SysWOW64\qmqeiwgf\eupbvhld.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c11381c26c551893386bb1319dbd231e056120d76a9f19b31b2bdaafdd42889d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- 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:2916

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\eupbvhld.exe

Filesize
10.8MB

MD5
ce700273506a8b9f8e8f09fdc992000a

SHA1
39f88b4b078689d25e35c465097db4cf6ca44d52

SHA256
13874ee92313b5a318ad0afa75048837b0c129499150d8b8c47d60078f495478

SHA512
d5f932bafc277ae43db4434db0b8d2852113bad0fda09bb3b74b209e7d412fef2e03a97e29c02dff957a6bb5f03dd36a4c5ad30959184f50ad1b0ea352a6e5cb

Download Submit
memory/2544-8-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2544-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2544-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2544-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2848-15-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2916-11-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2916-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-14-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2916-17-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2916-18-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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