tofsee | dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 01:09

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General

Target

JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe
Size

316KB
MD5

6e429866ebb90b7584e2ff0b07e20940
SHA1

4f6f8aca65c4a1276424ff4689c67ded7df61da1
SHA256

dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6
SHA512

8b8cd1beda47812676b7288e254183b8084c7d4bcb02ad149a7c5ed763898b25b81e94a27f6d9b2cb9caed745ebd2bb1608ddcdf4aec8f669898f71364e9b35d
SSDEEP

6144:0PCx2eJABZX5sTWQ3J+fX/8wOeIIDLY493GLMLI2fsS:oCx2W+X5sTWQ5+fX/8wOeIIDLY495LI

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\kgxsxmbb = "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
2744	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\kgxsxmbb\ImagePath = "C:\\Windows\\SysWOW64\\kgxsxmbb\\kcubarcj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	kcubarcj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2832	2736	kcubarcj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1972	sc.exe
2812	sc.exe
2972	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kcubarcj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 108	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	30
PID 2516 wrote to memory of 108	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	30
PID 2516 wrote to memory of 108	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	30
PID 2516 wrote to memory of 108	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	30
PID 2516 wrote to memory of 1792	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	32
PID 2516 wrote to memory of 1792	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	32
PID 2516 wrote to memory of 1792	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	32
PID 2516 wrote to memory of 1792	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	32
PID 2516 wrote to memory of 1972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	34
PID 2516 wrote to memory of 1972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	34
PID 2516 wrote to memory of 1972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	34
PID 2516 wrote to memory of 1972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	34
PID 2516 wrote to memory of 2812	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	36
PID 2516 wrote to memory of 2812	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	36
PID 2516 wrote to memory of 2812	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	36
PID 2516 wrote to memory of 2812	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	36
PID 2516 wrote to memory of 2972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	38
PID 2516 wrote to memory of 2972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	38
PID 2516 wrote to memory of 2972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	38
PID 2516 wrote to memory of 2972	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	38
PID 2516 wrote to memory of 2744	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	41
PID 2516 wrote to memory of 2744	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	41
PID 2516 wrote to memory of 2744	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	41
PID 2516 wrote to memory of 2744	2516	JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe	41
PID 2736 wrote to memory of 2832	2736	kcubarcj.exe	43
PID 2736 wrote to memory of 2832	2736	kcubarcj.exe	43
PID 2736 wrote to memory of 2832	2736	kcubarcj.exe	43
PID 2736 wrote to memory of 2832	2736	kcubarcj.exe	43
PID 2736 wrote to memory of 2832	2736	kcubarcj.exe	43
PID 2736 wrote to memory of 2832	2736	kcubarcj.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kgxsxmbb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kcubarcj.exe" C:\Windows\SysWOW64\kgxsxmbb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kgxsxmbb binPath= "C:\Windows\SysWOW64\kgxsxmbb\kcubarcj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1972
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kgxsxmbb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kgxsxmbb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2972
- 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:2744

C:\Windows\SysWOW64\kgxsxmbb\kcubarcj.exe
C:\Windows\SysWOW64\kgxsxmbb\kcubarcj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd9c4385fc60b66787f053905a3b64f0aea756f985cfcea9fe1b8d44ded821e6.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:2832

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\kcubarcj.exe

Filesize
12.3MB

MD5
82cd4b3d2f81f7758f130e81f86b5f6b

SHA1
73dd29dee11c414d1d8453d40ad4dc75f389e6dc

SHA256
b16ecff45beceb3c7607f6a22b4e3330a0924d8ef1611867d76875a01235ab41

SHA512
165b57fff24dbe4e469b6a7978a1aaff591d721295bdd5969879209a08e0bf2a3686982076ff13e960ecbb000504df50d43eb2f14588491d8ba90a65f1292269

Download Submit
memory/2516-1-0x0000000002BC0000-0x0000000002CC0000-memory.dmp

Filesize
1024KB

Download
memory/2516-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-4-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2516-7-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2516-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2736-16-0x0000000000400000-0x0000000002776000-memory.dmp

Filesize
35.5MB

Download
memory/2832-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2832-10-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2832-13-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2832-15-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download
memory/2832-17-0x0000000000100000-0x0000000000115000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads