tofsee | 660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 18:33

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General

Target

JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe
Size

316KB
MD5

a36560eec176852fed2d2d2e7f815968
SHA1

574aedce9e329b3a5ede94ab347193e78e354287
SHA256

660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3
SHA512

aa99f43d3fd4e964860914641e38114dcc714434b5ee01163255117d35cb1ee39b13ad089cf61eddd5f79c88b7a7494fbeaa249b43b43dac3c35b40a0b2f0e4f
SSDEEP

6144:B8L9y5vZxOx+UuYuwSEIITL6n93z37Hi5Aj:GOb8+UuYuwSEIITL6n9fHi

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\rbrinoag = "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
2540	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\rbrinoag\ImagePath = "C:\\Windows\\SysWOW64\\rbrinoag\\kgvvahne.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3036	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2588	kgvvahne.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 3036	2588	kgvvahne.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2844	sc.exe
2576	sc.exe
2680	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	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	kgvvahne.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 2700	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	31
PID 2776 wrote to memory of 2700	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	31
PID 2776 wrote to memory of 2700	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	31
PID 2776 wrote to memory of 2700	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	31
PID 2776 wrote to memory of 2960	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	33
PID 2776 wrote to memory of 2960	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	33
PID 2776 wrote to memory of 2960	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	33
PID 2776 wrote to memory of 2960	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	33
PID 2776 wrote to memory of 2844	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	35
PID 2776 wrote to memory of 2844	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	35
PID 2776 wrote to memory of 2844	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	35
PID 2776 wrote to memory of 2844	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	35
PID 2776 wrote to memory of 2576	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	37
PID 2776 wrote to memory of 2576	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	37
PID 2776 wrote to memory of 2576	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	37
PID 2776 wrote to memory of 2576	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	37
PID 2776 wrote to memory of 2680	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	39
PID 2776 wrote to memory of 2680	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	39
PID 2776 wrote to memory of 2680	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	39
PID 2776 wrote to memory of 2680	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	39
PID 2776 wrote to memory of 2540	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	42
PID 2776 wrote to memory of 2540	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	42
PID 2776 wrote to memory of 2540	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	42
PID 2776 wrote to memory of 2540	2776	JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe	42
PID 2588 wrote to memory of 3036	2588	kgvvahne.exe	44
PID 2588 wrote to memory of 3036	2588	kgvvahne.exe	44
PID 2588 wrote to memory of 3036	2588	kgvvahne.exe	44
PID 2588 wrote to memory of 3036	2588	kgvvahne.exe	44
PID 2588 wrote to memory of 3036	2588	kgvvahne.exe	44
PID 2588 wrote to memory of 3036	2588	kgvvahne.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rbrinoag\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kgvvahne.exe" C:\Windows\SysWOW64\rbrinoag\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rbrinoag binPath= "C:\Windows\SysWOW64\rbrinoag\kgvvahne.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rbrinoag "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rbrinoag
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- 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:2540

C:\Windows\SysWOW64\rbrinoag\kgvvahne.exe
C:\Windows\SysWOW64\rbrinoag\kgvvahne.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660de78e6fc321f5552b55f5882c1d51fff0128603c36db6a593169a4280c5c3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- 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:3036

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\kgvvahne.exe

Filesize
13.6MB

MD5
7ff264dceb1d09eed58413e745c4a609

SHA1
76d3160fbaa708cf350e0ab4b6fc3dba2adfdfa8

SHA256
0a512679fe98ff1130c20a866b50170d6738a95f2d3c8d8b19b02c6717dbaaff

SHA512
bd2b349619e6964781c7be6ae68dcf453eb69d3e211fef68b69e60b574d7a8bea4a7e36c0d8cea075c3f63d60fa5802cdf21c4982e9cff9adfa062a899299cb1

Download Submit
memory/2588-17-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2776-7-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2776-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2776-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2776-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2776-1-0x00000000028E0000-0x00000000029E0000-memory.dmp

Filesize
1024KB

Download
memory/2776-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3036-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3036-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads