tofsee | 9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548

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
29-12-2024 02:48

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General

Target

JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe
Size

284KB
MD5

ab514db61e4fe549e7fa5cf39e966f1f
SHA1

34385b6a1930b3f3683f17f8ca03403511a8fac1
SHA256

9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548
SHA512

24712286888012a6dd2faa445ea901e420e1b316913cfe7b482d9fba557e308ddb48cf4aac636d90f7a8589773986ef60e9b28e420597d6ee291eb8fe13ea3f3
SSDEEP

3072:1o5eiWVHGylf7j5r1/s3R94t7S8Q9S20ke957ylo5vuLkXrWFcXObIEAGWN7XsDb:i5RGdf791/sB9A7m/UBGIEAfT2

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\ucjkmby = "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
2572	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\ucjkmby\ImagePath = "C:\\Windows\\SysWOW64\\ucjkmby\\ljykealb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	ljykealb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 3056	2544	ljykealb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2576	sc.exe
888	sc.exe
2652	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ljykealb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2800	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	30
PID 2180 wrote to memory of 2800	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	30
PID 2180 wrote to memory of 2800	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	30
PID 2180 wrote to memory of 2800	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	30
PID 2180 wrote to memory of 2692	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	32
PID 2180 wrote to memory of 2692	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	32
PID 2180 wrote to memory of 2692	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	32
PID 2180 wrote to memory of 2692	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	32
PID 2180 wrote to memory of 2576	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	34
PID 2180 wrote to memory of 2576	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	34
PID 2180 wrote to memory of 2576	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	34
PID 2180 wrote to memory of 2576	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	34
PID 2180 wrote to memory of 888	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	36
PID 2180 wrote to memory of 888	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	36
PID 2180 wrote to memory of 888	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	36
PID 2180 wrote to memory of 888	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	36
PID 2180 wrote to memory of 2652	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	38
PID 2180 wrote to memory of 2652	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	38
PID 2180 wrote to memory of 2652	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	38
PID 2180 wrote to memory of 2652	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	38
PID 2180 wrote to memory of 2572	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	41
PID 2180 wrote to memory of 2572	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	41
PID 2180 wrote to memory of 2572	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	41
PID 2180 wrote to memory of 2572	2180	JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe	41
PID 2544 wrote to memory of 3056	2544	ljykealb.exe	43
PID 2544 wrote to memory of 3056	2544	ljykealb.exe	43
PID 2544 wrote to memory of 3056	2544	ljykealb.exe	43
PID 2544 wrote to memory of 3056	2544	ljykealb.exe	43
PID 2544 wrote to memory of 3056	2544	ljykealb.exe	43
PID 2544 wrote to memory of 3056	2544	ljykealb.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ucjkmby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ljykealb.exe" C:\Windows\SysWOW64\ucjkmby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ucjkmby binPath= "C:\Windows\SysWOW64\ucjkmby\ljykealb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ucjkmby "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ucjkmby
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- 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\ucjkmby\ljykealb.exe
C:\Windows\SysWOW64\ucjkmby\ljykealb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e81805591a9493fd422934d9c29b458ee247a715c4b0ea44b659ff0f700a548.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- 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:3056

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\ljykealb.exe

Filesize
12.4MB

MD5
23bdba0fea96911810f35265129eb62c

SHA1
ebd606316a04ab5c49f4238cc7009a1e848669de

SHA256
ed87255bd2bb3f23b9b03878d40a0d0036386e7194ecab851ba27682585c55b6

SHA512
5cee7887e558f7f406f4e9f165511de8fa940ba193d27cfea211e78d0c9852014f41f418608e8bc7f606c3fb985c74c97965b553ca3e39b4c8c5e61278147cdb

Download Submit
memory/2180-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2180-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2180-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2180-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2544-17-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/3056-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3056-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads