tofsee | bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e

Analysis

max time kernel
146s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 01:26

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General

Target

JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe
Size

285KB
MD5

25c149a1f5f4a036ebb72773167bedff
SHA1

b431e0f8cc073569c13889b0a4a13a982f47573a
SHA256

bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e
SHA512

6dfb3c62eb5c2f781da664db27b4821e3fca799b3d1a09825be1ace7a7ba9290fa06d2e7cb2867b1aefc7d88547539c2580ad1d7d016e93ac753b0fe08e3f63c
SSDEEP

6144:IW+6iIKmVsp07lkCPkcPI1NSIuSYG5RG:NVTCkI1YnG+

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\xklaixco = "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
2576	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\xklaixco\ImagePath = "C:\\Windows\\SysWOW64\\xklaixco\\wiuccnck.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2548	wiuccnck.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 1828	2548	wiuccnck.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2592	sc.exe
2552	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 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	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.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	wiuccnck.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2808	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	30
PID 2640 wrote to memory of 2808	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	30
PID 2640 wrote to memory of 2808	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	30
PID 2640 wrote to memory of 2808	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	30
PID 2640 wrote to memory of 2700	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	32
PID 2640 wrote to memory of 2700	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	32
PID 2640 wrote to memory of 2700	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	32
PID 2640 wrote to memory of 2700	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	32
PID 2640 wrote to memory of 2552	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	34
PID 2640 wrote to memory of 2552	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	34
PID 2640 wrote to memory of 2552	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	34
PID 2640 wrote to memory of 2552	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	34
PID 2640 wrote to memory of 2744	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	36
PID 2640 wrote to memory of 2744	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	36
PID 2640 wrote to memory of 2744	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	36
PID 2640 wrote to memory of 2744	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	36
PID 2640 wrote to memory of 2592	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	38
PID 2640 wrote to memory of 2592	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	38
PID 2640 wrote to memory of 2592	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	38
PID 2640 wrote to memory of 2592	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	38
PID 2640 wrote to memory of 2576	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	41
PID 2640 wrote to memory of 2576	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	41
PID 2640 wrote to memory of 2576	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	41
PID 2640 wrote to memory of 2576	2640	JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe	41
PID 2548 wrote to memory of 1828	2548	wiuccnck.exe	43
PID 2548 wrote to memory of 1828	2548	wiuccnck.exe	43
PID 2548 wrote to memory of 1828	2548	wiuccnck.exe	43
PID 2548 wrote to memory of 1828	2548	wiuccnck.exe	43
PID 2548 wrote to memory of 1828	2548	wiuccnck.exe	43
PID 2548 wrote to memory of 1828	2548	wiuccnck.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xklaixco\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wiuccnck.exe" C:\Windows\SysWOW64\xklaixco\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xklaixco binPath= "C:\Windows\SysWOW64\xklaixco\wiuccnck.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xklaixco "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xklaixco
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- 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:2576

C:\Windows\SysWOW64\xklaixco\wiuccnck.exe
C:\Windows\SysWOW64\xklaixco\wiuccnck.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd4d0182cbd50f08d157f51f241c28b6645982d32dd1dd30a8c78e121d85726e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- 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:1828

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\wiuccnck.exe

Filesize
10.4MB

MD5
db48dd6adcb06c7baba8820c7a7c1438

SHA1
5b2cb818d19a857cb95f3762f4a584a531ac1564

SHA256
79f171aceb0cbdc01d5fb498425f5a9c290051fdbdf7cb9296fbdcbb5f75e9a0

SHA512
862629c142182c7a62a6eb1b4020f5ef2d143d3fed5f473f926c29b5859913e3030768940ed7eca2ca80e1d1e527c48c74a81dbbded6c9270d357bbfae7841b0

Download Submit
memory/1828-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1828-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1828-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1828-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1828-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2548-17-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2640-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-9-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2640-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2640-2-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads