tofsee | bc08635f68d183add0e1c746f47d07815a903aac07c3334131cfc808f85b8bd9

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 16:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe
Size

13.1MB
MD5

26dc30509b939d95f3e7ff81bd9c02cd
SHA1

95503eafd7e3bbe829ba4f9cff6863c620e1ac27
SHA256

bc08635f68d183add0e1c746f47d07815a903aac07c3334131cfc808f85b8bd9
SHA512

24a7543199b06358b296e4c0bedb3365c3e29ac054aa3ba7c0a22e49079fa6d672e2dfc25ca8024a06526f16a4515bbc1e8798d715a3416ab4809f9f8a487fb4
SSDEEP

3072:rBM7AAAPsPmgSn/HzaHWgwwQjHF0kKUyodrMpNLbdr05b7pNeoAhTGl9NZ9k222H:C7h1HSn/WHnQjphwNXdr0gU9z

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\kjyvhhte = "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
1128	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\kjyvhhte\ImagePath = "C:\\Windows\\SysWOW64\\kjyvhhte\\pwufkfth.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2864	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	pwufkfth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 2864	2640	pwufkfth.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2960	sc.exe
2748	sc.exe
2608	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pwufkfth.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2892	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	30
PID 2372 wrote to memory of 2892	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	30
PID 2372 wrote to memory of 2892	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	30
PID 2372 wrote to memory of 2892	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	30
PID 2372 wrote to memory of 2884	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	32
PID 2372 wrote to memory of 2884	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	32
PID 2372 wrote to memory of 2884	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	32
PID 2372 wrote to memory of 2884	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	32
PID 2372 wrote to memory of 2960	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	34
PID 2372 wrote to memory of 2960	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	34
PID 2372 wrote to memory of 2960	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	34
PID 2372 wrote to memory of 2960	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	34
PID 2372 wrote to memory of 2748	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	36
PID 2372 wrote to memory of 2748	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	36
PID 2372 wrote to memory of 2748	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	36
PID 2372 wrote to memory of 2748	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	36
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	38
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	38
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	38
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	38
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	41
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	41
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	41
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe	41
PID 2640 wrote to memory of 2864	2640	pwufkfth.exe	43
PID 2640 wrote to memory of 2864	2640	pwufkfth.exe	43
PID 2640 wrote to memory of 2864	2640	pwufkfth.exe	43
PID 2640 wrote to memory of 2864	2640	pwufkfth.exe	43
PID 2640 wrote to memory of 2864	2640	pwufkfth.exe	43
PID 2640 wrote to memory of 2864	2640	pwufkfth.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kjyvhhte\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwufkfth.exe" C:\Windows\SysWOW64\kjyvhhte\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kjyvhhte binPath= "C:\Windows\SysWOW64\kjyvhhte\pwufkfth.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kjyvhhte "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kjyvhhte
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- 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:1128

C:\Windows\SysWOW64\kjyvhhte\pwufkfth.exe
C:\Windows\SysWOW64\kjyvhhte\pwufkfth.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26dc30509b939d95f3e7ff81bd9c02cd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- 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:2864

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pwufkfth.exe

Filesize
13.6MB

MD5
679733179a2e9851f6f7a6f3501380d2

SHA1
99300a1fa8e7cc8f9f18a53e7cffbec6840379ea

SHA256
585236de1432d50a57a12b5e2b694bd5a8a5b8223aa94fd1ca5d99ffd380845a

SHA512
9dc9b8059630c7651fb886a8014c67fa3cb1190edbc7b8db7408c7589a0dbe17eda173764f02852a13b2a6906244a577484dff4f344ca9407d2def9c23ec6435

Download Submit
memory/2372-9-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2372-4-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2372-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2372-11-0x00000000009F0000-0x0000000000AF0000-memory.dmp

Filesize
1024KB

Download
memory/2372-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2372-1-0x00000000009F0000-0x0000000000AF0000-memory.dmp

Filesize
1024KB

Download
memory/2640-18-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/2864-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2864-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2864-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2864-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2864-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads