tofsee | fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2024, 08:28

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General

Target
JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe
Size 164KB
Sample241222-kdbbvs1nfr
SHA256 fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1
MD5 688908d3247336adfc48107f72dedb39
SHA1 9ecc3f6b91333c9c581c1c2cac15a20f48f57c90
SHA512 e6d5f39f216448acdad10ce0f6e5718fb4937c7790a9987e7228b9e8742f6fd3a85483288052121365480b86f3fdf4e183434fe863d82a545ef30705b2739197
SSDEEP 3072:avs48eTSwJxXKS5gZ8S7Y2DZO6p5L9eS9H6p:ak4dGiv5GFY29eEa
MD5 SHA1 SHA512 SSDEEP

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
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
4784	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\vhtbyppo\ImagePath = "C:\\Windows\\SysWOW64\\vhtbyppo\\qxvglgui.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe

Deletes itself 1 IoCs

pid	Process
3364	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4504	qxvglgui.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4504 set thread context of 3364	4504	qxvglgui.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2980	sc.exe
5092	sc.exe
4060	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3720	4904	WerFault.exe	81
3612	4504	WerFault.exe	92

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_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.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	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	qxvglgui.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 4288	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	82
PID 4904 wrote to memory of 4288	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	82
PID 4904 wrote to memory of 4288	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	82
PID 4904 wrote to memory of 2240	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	84
PID 4904 wrote to memory of 2240	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	84
PID 4904 wrote to memory of 2240	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	84
PID 4904 wrote to memory of 5092	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	86
PID 4904 wrote to memory of 5092	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	86
PID 4904 wrote to memory of 5092	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	86
PID 4904 wrote to memory of 4060	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	88
PID 4904 wrote to memory of 4060	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	88
PID 4904 wrote to memory of 4060	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	88
PID 4904 wrote to memory of 2980	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	90
PID 4904 wrote to memory of 2980	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	90
PID 4904 wrote to memory of 2980	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	90
PID 4904 wrote to memory of 4784	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	93
PID 4904 wrote to memory of 4784	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	93
PID 4904 wrote to memory of 4784	4904	JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe	93
PID 4504 wrote to memory of 3364	4504	qxvglgui.exe	98
PID 4504 wrote to memory of 3364	4504	qxvglgui.exe	98
PID 4504 wrote to memory of 3364	4504	qxvglgui.exe	98
PID 4504 wrote to memory of 3364	4504	qxvglgui.exe	98
PID 4504 wrote to memory of 3364	4504	qxvglgui.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vhtbyppo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe" C:\Windows\SysWOW64\vhtbyppo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vhtbyppo binPath= "C:\Windows\SysWOW64\vhtbyppo\qxvglgui.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vhtbyppo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vhtbyppo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- 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:4784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1044
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\vhtbyppo\qxvglgui.exe
C:\Windows\SysWOW64\vhtbyppo\qxvglgui.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fe6d3f3331a3121fb734f373df045d7de52f73ca59f8b54d11432b25b4a0ddc1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 512
  2⤵
  - Program crash
  PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4904 -ip 4904
1⤵
PID:416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4504 -ip 4504
1⤵
PID:4928

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

qxvglgui.exe

Path C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe
Size 14.1MB
SHA256 90637fba5340ec15b6d00bb04538fc3a0e8ed9a881477b0f678fdd2be71ddba3
MD5 c840452b9934502a30c325cce3765425
SHA1 f57fd6761357fb3cd01cc213114fa08d18394e32
SHA512 a03f1985c383a565d83b65548104e4943eca59882799d5d810029e1b3537eb82753eb3989255e0398821d08c804285d2db103b3b75d145061559f7eae26de433
SSDEEP 24576:RivxUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUY:0
MD5 SHA1 SHA512 SSDEEP

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memory/3364-14-0x0000000000870000-0x0000000000885000-memory.dmp

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memory/3364-17-0x0000000000870000-0x0000000000885000-memory.dmp

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memory/3364-16-0x0000000000870000-0x0000000000885000-memory.dmp

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memory/4504-13-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4504-11-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4504-12-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4504-18-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4904-10-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4904-8-0x0000000000400000-0x00000000004AF000-memory.dmp

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memory/4904-1-0x0000000000690000-0x0000000000790000-memory.dmp

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memory/4904-9-0x0000000000640000-0x0000000000653000-memory.dmp

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memory/4904-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4904-2-0x0000000000640000-0x0000000000653000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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