tofsee | 9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39

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
30-12-2024 01:30

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General

Target

JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe
Size

282KB
MD5

b702acbfb022d6d3eb92dc6ffa938123
SHA1

15e926de4225ea7d6996867807d9f2fc4e61428c
SHA256

9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39
SHA512

2067c8fb81095d2edeb357f70ccabc94f666c2c76b1ac9723e34ae0ffc857b9d91ee88af0a853f7054104eb21e1e0a6681e6192e2b8cff1419b4d5c9eb926cd4
SSDEEP

6144:WMnhpeoqjbg3lNpcdjewKBh0+DjQPjG6Bhrc:WMnhpeoUbANpg4rga6Bh

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\feqkknnc = "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
2912	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\feqkknnc\ImagePath = "C:\\Windows\\SysWOW64\\feqkknnc\\uzvnloa.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2900	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	uzvnloa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2900	2856	uzvnloa.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2696	sc.exe
2752	sc.exe
2300	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	uzvnloa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 1948	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	30
PID 1716 wrote to memory of 1948	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	30
PID 1716 wrote to memory of 1948	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	30
PID 1716 wrote to memory of 1948	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	30
PID 1716 wrote to memory of 1924	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	32
PID 1716 wrote to memory of 1924	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	32
PID 1716 wrote to memory of 1924	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	32
PID 1716 wrote to memory of 1924	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	32
PID 1716 wrote to memory of 2300	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	34
PID 1716 wrote to memory of 2300	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	34
PID 1716 wrote to memory of 2300	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	34
PID 1716 wrote to memory of 2300	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	34
PID 1716 wrote to memory of 2696	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	36
PID 1716 wrote to memory of 2696	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	36
PID 1716 wrote to memory of 2696	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	36
PID 1716 wrote to memory of 2696	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	36
PID 1716 wrote to memory of 2752	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	38
PID 1716 wrote to memory of 2752	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	38
PID 1716 wrote to memory of 2752	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	38
PID 1716 wrote to memory of 2752	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	38
PID 1716 wrote to memory of 2912	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	41
PID 1716 wrote to memory of 2912	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	41
PID 1716 wrote to memory of 2912	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	41
PID 1716 wrote to memory of 2912	1716	JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe	41
PID 2856 wrote to memory of 2900	2856	uzvnloa.exe	43
PID 2856 wrote to memory of 2900	2856	uzvnloa.exe	43
PID 2856 wrote to memory of 2900	2856	uzvnloa.exe	43
PID 2856 wrote to memory of 2900	2856	uzvnloa.exe	43
PID 2856 wrote to memory of 2900	2856	uzvnloa.exe	43
PID 2856 wrote to memory of 2900	2856	uzvnloa.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\feqkknnc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uzvnloa.exe" C:\Windows\SysWOW64\feqkknnc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create feqkknnc binPath= "C:\Windows\SysWOW64\feqkknnc\uzvnloa.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description feqkknnc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start feqkknnc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- 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:2912

C:\Windows\SysWOW64\feqkknnc\uzvnloa.exe
C:\Windows\SysWOW64\feqkknnc\uzvnloa.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9f542dda8238a115cff9cf890c0f330f82d9f7431a4e1efc3836923cba8c9d39.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2900

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\uzvnloa.exe

Filesize
11.6MB

MD5
94e174bcfea924c1fb79572ef25c0357

SHA1
d724e1324738aa2991da8754b4de17dde262f371

SHA256
495392496ade7c416f96f24a73efaf37704c01a8b9a1fb1bab2b7cbe3a96ccc5

SHA512
532b6f689bff2078e8b1b75b3a59d21a593e36176af74d50f352dad9d1b1c08fb08c1bfcf2f1db071ad09ba334e2d8238685b948fd16899d35f819fd98a1bf22

Download Submit
memory/1716-2-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/1716-3-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/1716-7-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2856-14-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2900-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2900-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads