tofsee | 4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 11:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe
Size

146KB
MD5

f5339fab992d8d5dc0e4106fb8b5b899
SHA1

cf0665860499961a9f5e1ef8d878b79684f8dca2
SHA256

4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2
SHA512

22f068ada213227ac68c9d285331a0bbb82284c9dd73314a0df8bd5d9e5cf467c655efb3bf62d67ef5eef218b2b517c2b83e6e861476524dcd431cf4f164e370
SSDEEP

3072:yMh6zd/diHv43x+rCV5EJLMhxZG/qfPJA5FHJATz:yg6R/dkv43GCP8tqf+5FGP

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\npxvbbof = "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
2820	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\npxvbbof\ImagePath = "C:\\Windows\\SysWOW64\\npxvbbof\\cfygegoy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2876	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	cfygegoy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 2876	2792	cfygegoy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2496	sc.exe
2240	sc.exe
2696	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.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	cfygegoy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 3032	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	30
PID 2384 wrote to memory of 3032	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	30
PID 2384 wrote to memory of 3032	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	30
PID 2384 wrote to memory of 3032	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	30
PID 2384 wrote to memory of 2128	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	32
PID 2384 wrote to memory of 2128	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	32
PID 2384 wrote to memory of 2128	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	32
PID 2384 wrote to memory of 2128	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	32
PID 2384 wrote to memory of 2496	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	34
PID 2384 wrote to memory of 2496	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	34
PID 2384 wrote to memory of 2496	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	34
PID 2384 wrote to memory of 2496	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	34
PID 2384 wrote to memory of 2240	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	36
PID 2384 wrote to memory of 2240	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	36
PID 2384 wrote to memory of 2240	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	36
PID 2384 wrote to memory of 2240	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	36
PID 2384 wrote to memory of 2696	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	38
PID 2384 wrote to memory of 2696	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	38
PID 2384 wrote to memory of 2696	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	38
PID 2384 wrote to memory of 2696	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	38
PID 2384 wrote to memory of 2820	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	41
PID 2384 wrote to memory of 2820	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	41
PID 2384 wrote to memory of 2820	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	41
PID 2384 wrote to memory of 2820	2384	JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe	41
PID 2792 wrote to memory of 2876	2792	cfygegoy.exe	43
PID 2792 wrote to memory of 2876	2792	cfygegoy.exe	43
PID 2792 wrote to memory of 2876	2792	cfygegoy.exe	43
PID 2792 wrote to memory of 2876	2792	cfygegoy.exe	43
PID 2792 wrote to memory of 2876	2792	cfygegoy.exe	43
PID 2792 wrote to memory of 2876	2792	cfygegoy.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\npxvbbof\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cfygegoy.exe" C:\Windows\SysWOW64\npxvbbof\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create npxvbbof binPath= "C:\Windows\SysWOW64\npxvbbof\cfygegoy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description npxvbbof "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start npxvbbof
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- 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:2820

C:\Windows\SysWOW64\npxvbbof\cfygegoy.exe
C:\Windows\SysWOW64\npxvbbof\cfygegoy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4e370c11ec3d5490a4f08c8f25219cd96b3098e619380317bf92d04e8374ebf2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:2876

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\cfygegoy.exe

Filesize
11.3MB

MD5
d4f9cc7065dd1c67479594ddb1d86dc3

SHA1
c3208ac47c293d3c3ad2841f3a73b7aa5e60ccdd

SHA256
1931409cb42c356c1b820fb280dadb63c77992ad192477c30c0a558331da62be

SHA512
929747bd08232200a8f56ed35b58ab9be468243692b72c8d96790e021f589070ea786135ec099c8ca36a98e6ba78638e5a158aec4f6ed704f6b1f31431a38b52

Download Submit
memory/2384-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2384-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2384-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2384-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2792-17-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2876-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2876-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2876-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2876-18-0x0000000000080000-0x0000000000095000-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