tofsee | be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529

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
26/12/2024, 21:06

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General

Target

JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe
Size

337KB
MD5

691f941752cc0aeb2aa2c47b09940dd5
SHA1

d94c0a393249605f798b9fcdc2fa91ac3993b20f
SHA256

be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529
SHA512

efe42c9a85b8fd32880fe8ace8e3680171c292d84c69dc2dfcab74fcda4fb02b96f41634ba138fd59b3ea6141bc8ba71dcc3ba6bbc032bb279c12f6bf8aae1e7
SSDEEP

6144:v5+ign4C0SRg7rBxkxIQpZk/GfpyNTjS9OnFK5GEm9VHg5:0t3NRCrBa2QpZk/U0JS9OnFMm9

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\hdyroeva = "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
2588	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\hdyroeva\ImagePath = "C:\\Windows\\SysWOW64\\hdyroeva\\bufvgdwp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1408	bufvgdwp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1408 set thread context of 2620	1408	bufvgdwp.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2808	sc.exe
2852	sc.exe
2872	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_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.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	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	bufvgdwp.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2300	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	31
PID 1508 wrote to memory of 2300	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	31
PID 1508 wrote to memory of 2300	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	31
PID 1508 wrote to memory of 2300	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	31
PID 1508 wrote to memory of 2820	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	33
PID 1508 wrote to memory of 2820	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	33
PID 1508 wrote to memory of 2820	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	33
PID 1508 wrote to memory of 2820	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	33
PID 1508 wrote to memory of 2808	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	35
PID 1508 wrote to memory of 2808	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	35
PID 1508 wrote to memory of 2808	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	35
PID 1508 wrote to memory of 2808	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	35
PID 1508 wrote to memory of 2852	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	37
PID 1508 wrote to memory of 2852	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	37
PID 1508 wrote to memory of 2852	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	37
PID 1508 wrote to memory of 2852	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	37
PID 1508 wrote to memory of 2872	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	39
PID 1508 wrote to memory of 2872	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	39
PID 1508 wrote to memory of 2872	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	39
PID 1508 wrote to memory of 2872	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	39
PID 1508 wrote to memory of 2588	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	42
PID 1508 wrote to memory of 2588	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	42
PID 1508 wrote to memory of 2588	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	42
PID 1508 wrote to memory of 2588	1508	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	42
PID 1408 wrote to memory of 2620	1408	bufvgdwp.exe	44
PID 1408 wrote to memory of 2620	1408	bufvgdwp.exe	44
PID 1408 wrote to memory of 2620	1408	bufvgdwp.exe	44
PID 1408 wrote to memory of 2620	1408	bufvgdwp.exe	44
PID 1408 wrote to memory of 2620	1408	bufvgdwp.exe	44
PID 1408 wrote to memory of 2620	1408	bufvgdwp.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hdyroeva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bufvgdwp.exe" C:\Windows\SysWOW64\hdyroeva\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hdyroeva binPath= "C:\Windows\SysWOW64\hdyroeva\bufvgdwp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hdyroeva "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hdyroeva
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:2588

C:\Windows\SysWOW64\hdyroeva\bufvgdwp.exe
C:\Windows\SysWOW64\hdyroeva\bufvgdwp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1408
- 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:2620

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\bufvgdwp.exe

Filesize
13.9MB

MD5
2a4b43727ac4fd469694ab9750aed969

SHA1
708e4e575e91e2765a8ad927b6f4d2053c7d8815

SHA256
40bab962a741417345c6857413485d69855b638c2477ccd56b7fb19052b7f47d

SHA512
47504ef82f4d69a6fb23669fb053e8b30ef6886b7b386942ea13d0f9113c87dec30a8112e10b7d8d6ec8b42ec97154560110fae2c27c82c820c4b27105c2c37e

Download Submit
memory/1408-15-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/1508-7-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/1508-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1508-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1508-8-0x00000000002A0000-0x00000000002B3000-memory.dmp

Filesize
76KB

Download
memory/1508-1-0x0000000002BC0000-0x0000000002CC0000-memory.dmp

Filesize
1024KB

Download
memory/1508-2-0x00000000002A0000-0x00000000002B3000-memory.dmp

Filesize
76KB

Download
memory/2620-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads