tofsee | 3efe22a84b570ddcb8fcb1e4669706957a1cadc7c744e9f7f767032fba94ce16

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-11-2024 01:09

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General

Target

b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe
Size

12.5MB
MD5

b449be414eabb477f6681adb617b72d5
SHA1

5b6e21ba01ddbdd3bf99534c2bda2716b42a74c1
SHA256

3efe22a84b570ddcb8fcb1e4669706957a1cadc7c744e9f7f767032fba94ce16
SHA512

c1f3df85fd46e8a4feae957ce8190bc741c30df4882e771de1874a1f43cc2707eeef83b4230b75d06d2acbe2bdafeb73761baadc66233b270a68cfefd1ac58a8
SSDEEP

6144:DesoFeYHECHsLsx6mihb12P5qpWV0m68jM7LjmpeM:Dnu/HECz6S5QWlnqOpe

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\ugibyrsi = "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
2656	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\ugibyrsi\ImagePath = "C:\\Windows\\SysWOW64\\ugibyrsi\\vtdbbraq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	vtdbbraq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2860	2736	vtdbbraq.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2624	sc.exe
2144	sc.exe
2756	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	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vtdbbraq.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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1052	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	31
PID 548 wrote to memory of 1052	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	31
PID 548 wrote to memory of 1052	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	31
PID 548 wrote to memory of 1052	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	31
PID 548 wrote to memory of 2004	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	33
PID 548 wrote to memory of 2004	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	33
PID 548 wrote to memory of 2004	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	33
PID 548 wrote to memory of 2004	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	33
PID 548 wrote to memory of 2624	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	35
PID 548 wrote to memory of 2624	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	35
PID 548 wrote to memory of 2624	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	35
PID 548 wrote to memory of 2624	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	35
PID 548 wrote to memory of 2144	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	37
PID 548 wrote to memory of 2144	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	37
PID 548 wrote to memory of 2144	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	37
PID 548 wrote to memory of 2144	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	37
PID 548 wrote to memory of 2756	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	39
PID 548 wrote to memory of 2756	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	39
PID 548 wrote to memory of 2756	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	39
PID 548 wrote to memory of 2756	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	39
PID 548 wrote to memory of 2656	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	42
PID 548 wrote to memory of 2656	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	42
PID 548 wrote to memory of 2656	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	42
PID 548 wrote to memory of 2656	548	b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe	42
PID 2736 wrote to memory of 2860	2736	vtdbbraq.exe	44
PID 2736 wrote to memory of 2860	2736	vtdbbraq.exe	44
PID 2736 wrote to memory of 2860	2736	vtdbbraq.exe	44
PID 2736 wrote to memory of 2860	2736	vtdbbraq.exe	44
PID 2736 wrote to memory of 2860	2736	vtdbbraq.exe	44
PID 2736 wrote to memory of 2860	2736	vtdbbraq.exe	44

C:\Users\Admin\AppData\Local\Temp\b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ugibyrsi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vtdbbraq.exe" C:\Windows\SysWOW64\ugibyrsi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ugibyrsi binPath= "C:\Windows\SysWOW64\ugibyrsi\vtdbbraq.exe /d\"C:\Users\Admin\AppData\Local\Temp\b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ugibyrsi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ugibyrsi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- 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:2656

C:\Windows\SysWOW64\ugibyrsi\vtdbbraq.exe
C:\Windows\SysWOW64\ugibyrsi\vtdbbraq.exe /d"C:\Users\Admin\AppData\Local\Temp\b449be414eabb477f6681adb617b72d5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:2860

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\vtdbbraq.exe

Filesize
13.4MB

MD5
1f2c38858f0cfd80d2f0f77d8a5dde1a

SHA1
047d54b395a344bf4ff5f7b9377c3dd2cae1cff8

SHA256
2464bdc154e0d7d848060cc77cdd4c0b7a7271e34d8899355fffe37d4b3341fa

SHA512
4e7b72f8f6f7b69808ca63b43ed2d64db152825041bc416d2a1a79ad6709ab9be7f35c2e50d9a2b0861707f7ef862dadafdc5e2a15093123b542867d4498062a

Download Submit
memory/548-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/548-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/548-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/548-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/548-1-0x0000000000900000-0x0000000000A00000-memory.dmp

Filesize
1024KB

Download
memory/2736-15-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2860-14-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2860-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2860-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-11-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2860-18-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads