tofsee | 133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 05:28

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General

Target

JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe
Size

187KB
MD5

bbae7e6938c82707200c36080f772af5
SHA1

44d0484b35f3e6c566124a8633d9486ba8e0e9c9
SHA256

133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217
SHA512

60c10e82b292a2785159ed1a1dce9660a92aa6ae02f1ebeea52aa1f349306a9466648fc2a39fef258c087d7d9e11de61ad67a6dd58adee7e2802d6d2bf8a5a57
SSDEEP

3072:7b7FfjDuFi2Wi6cTO6OTD6Aem2nDQ62Hhg62IBTXFywNlLWdRpZa9uD6VdyhkO:79rDuFi2WiTO6GDonDQlHe62kysVWdRo

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\jhagcqvw = "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
2876	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\jhagcqvw\ImagePath = "C:\\Windows\\SysWOW64\\jhagcqvw\\vklrepji.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3028	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2812	vklrepji.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2812 set thread context of 3028	2812	vklrepji.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1864	sc.exe
2692	sc.exe
2744	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	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	vklrepji.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2256	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	30
PID 2032 wrote to memory of 2256	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	30
PID 2032 wrote to memory of 2256	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	30
PID 2032 wrote to memory of 2256	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	30
PID 2032 wrote to memory of 1960	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	32
PID 2032 wrote to memory of 1960	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	32
PID 2032 wrote to memory of 1960	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	32
PID 2032 wrote to memory of 1960	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	32
PID 2032 wrote to memory of 1864	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	34
PID 2032 wrote to memory of 1864	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	34
PID 2032 wrote to memory of 1864	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	34
PID 2032 wrote to memory of 1864	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	34
PID 2032 wrote to memory of 2692	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	36
PID 2032 wrote to memory of 2692	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	36
PID 2032 wrote to memory of 2692	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	36
PID 2032 wrote to memory of 2692	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	36
PID 2032 wrote to memory of 2744	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	38
PID 2032 wrote to memory of 2744	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	38
PID 2032 wrote to memory of 2744	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	38
PID 2032 wrote to memory of 2744	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	38
PID 2032 wrote to memory of 2876	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	41
PID 2032 wrote to memory of 2876	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	41
PID 2032 wrote to memory of 2876	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	41
PID 2032 wrote to memory of 2876	2032	JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe	41
PID 2812 wrote to memory of 3028	2812	vklrepji.exe	43
PID 2812 wrote to memory of 3028	2812	vklrepji.exe	43
PID 2812 wrote to memory of 3028	2812	vklrepji.exe	43
PID 2812 wrote to memory of 3028	2812	vklrepji.exe	43
PID 2812 wrote to memory of 3028	2812	vklrepji.exe	43
PID 2812 wrote to memory of 3028	2812	vklrepji.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jhagcqvw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vklrepji.exe" C:\Windows\SysWOW64\jhagcqvw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jhagcqvw binPath= "C:\Windows\SysWOW64\jhagcqvw\vklrepji.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jhagcqvw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jhagcqvw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:2876

C:\Windows\SysWOW64\jhagcqvw\vklrepji.exe
C:\Windows\SysWOW64\jhagcqvw\vklrepji.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_133f34fea559e89b1a51cf4a03365f50639d36d3330b26b8c3fe24a4105a6217.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- 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:3028

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\vklrepji.exe

Filesize
14.8MB

MD5
22295acd0514f37754e0369fc425ee0d

SHA1
49fdc834e375287b6a7a32fd3f0a70b8b301d716

SHA256
49c5790e4c78e5d7478a873363d0391a8168924c61029370144e906f67ed0b7b

SHA512
e88f0a2cf550939f92f8bad38a79604fb5a3c8cb949b99d379ec29929330ae0856db5d14112cdabad24da5a7b94a0fa779ca93b5d0fd76edebb270a76d4552e6

Download Submit
memory/2032-7-0x00000000003A0000-0x00000000003AD000-memory.dmp

Filesize
52KB

Download
memory/2032-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2032-1-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/2032-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2032-8-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/2032-0-0x00000000003A0000-0x00000000003AD000-memory.dmp

Filesize
52KB

Download
memory/2032-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3028-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3028-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3028-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads