tofsee | 88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90

Analysis

max time kernel
145s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 09:39

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General

Target

JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe
Size

257KB
MD5

adcb18a3e4453106ece75a6f10668aca
SHA1

80ac8879cb657167b740fd9cc92457cb4b911f8e
SHA256

88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90
SHA512

2965869d8a4305cc852f229a7d320a5fad21cd06739881183ff1c7ca261f1ddcb4c72f3c248e9f5afe34acb14bcb0b4bfd099b570029b2eb35af9293bc4b20d7
SSDEEP

6144:vv9dBGUFJFctQpYMCbTh3Sew3+Ubw9koXpDCoIK:v1rLFJFdpMZSJb0JDIK

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\gmnigctw = "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
2848	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\gmnigctw\ImagePath = "C:\\Windows\\SysWOW64\\gmnigctw\\pbnvvgvd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2844	pbnvvgvd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2844 set thread context of 2820	2844	pbnvvgvd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2104	sc.exe
1792	sc.exe
2760	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_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.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	netsh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pbnvvgvd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1404	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	30
PID 1720 wrote to memory of 1404	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	30
PID 1720 wrote to memory of 1404	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	30
PID 1720 wrote to memory of 1404	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	30
PID 1720 wrote to memory of 2412	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	32
PID 1720 wrote to memory of 2412	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	32
PID 1720 wrote to memory of 2412	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	32
PID 1720 wrote to memory of 2412	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	32
PID 1720 wrote to memory of 2104	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	34
PID 1720 wrote to memory of 2104	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	34
PID 1720 wrote to memory of 2104	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	34
PID 1720 wrote to memory of 2104	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	34
PID 1720 wrote to memory of 1792	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	36
PID 1720 wrote to memory of 1792	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	36
PID 1720 wrote to memory of 1792	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	36
PID 1720 wrote to memory of 1792	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	36
PID 1720 wrote to memory of 2760	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	38
PID 1720 wrote to memory of 2760	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	38
PID 1720 wrote to memory of 2760	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	38
PID 1720 wrote to memory of 2760	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	38
PID 1720 wrote to memory of 2848	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	41
PID 1720 wrote to memory of 2848	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	41
PID 1720 wrote to memory of 2848	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	41
PID 1720 wrote to memory of 2848	1720	JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe	41
PID 2844 wrote to memory of 2820	2844	pbnvvgvd.exe	43
PID 2844 wrote to memory of 2820	2844	pbnvvgvd.exe	43
PID 2844 wrote to memory of 2820	2844	pbnvvgvd.exe	43
PID 2844 wrote to memory of 2820	2844	pbnvvgvd.exe	43
PID 2844 wrote to memory of 2820	2844	pbnvvgvd.exe	43
PID 2844 wrote to memory of 2820	2844	pbnvvgvd.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gmnigctw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pbnvvgvd.exe" C:\Windows\SysWOW64\gmnigctw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gmnigctw binPath= "C:\Windows\SysWOW64\gmnigctw\pbnvvgvd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gmnigctw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gmnigctw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- 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:2848

C:\Windows\SysWOW64\gmnigctw\pbnvvgvd.exe
C:\Windows\SysWOW64\gmnigctw\pbnvvgvd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_88f3d40feec95d20183876907c7d0588b1cb2da778fbad1b698ee2baa8126b90.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- 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:2820

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\pbnvvgvd.exe

Filesize
11.2MB

MD5
f27ee2c281888d2b7f81f5f4b0d2b57f

SHA1
b948983f284073a28cebcca1b67dda9b797ef8c1

SHA256
d3c2366d2927b9c9de1e7b2611cde6e3122ac47782db1426f05b1519edaf8164

SHA512
cdf057acef7f909b33e5ec527ec9040786359abeb3837bef6372dc1da01de567fa062ee919997a1faf2aa7290f8342f397d40bcc04d8136dbca617ada8840f90

Download Submit
memory/1720-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1720-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1720-8-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download
memory/1720-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1720-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download
memory/2820-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2844-16-0x0000000000400000-0x0000000000870000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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