tofsee | f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 22:14

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General

Target

JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe
Size

306KB
MD5

0661057150ee41d5430b7cdfa59b9151
SHA1

9a2954d4b64ed1a2347fd601f18f87d36a7306d3
SHA256

f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e
SHA512

f88700b8b61a27c34ff8dabd227dceef34909c403d76abbe70d9d11112d08c1b672e4acae8555cc50e3542166ccf34a90ad3dccf2d79cc90cb89fbe1bb46acfb
SSDEEP

6144:CPrWeZIupcl/Yi3FshG74zgmlL6tZeXuZU8:iWeZIupcl1FKG7ogILTXuC

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\qurtaigi = "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
2564	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\qurtaigi\ImagePath = "C:\\Windows\\SysWOW64\\qurtaigi\\oezlfrvn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2084	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	oezlfrvn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 2084	2884	oezlfrvn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2892	sc.exe
2820	sc.exe
1748	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	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	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.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	oezlfrvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2668	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	30
PID 2672 wrote to memory of 2668	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	30
PID 2672 wrote to memory of 2668	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	30
PID 2672 wrote to memory of 2668	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	30
PID 2672 wrote to memory of 2812	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	32
PID 2672 wrote to memory of 2812	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	32
PID 2672 wrote to memory of 2812	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	32
PID 2672 wrote to memory of 2812	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	32
PID 2672 wrote to memory of 2892	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	34
PID 2672 wrote to memory of 2892	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	34
PID 2672 wrote to memory of 2892	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	34
PID 2672 wrote to memory of 2892	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	34
PID 2672 wrote to memory of 2820	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	36
PID 2672 wrote to memory of 2820	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	36
PID 2672 wrote to memory of 2820	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	36
PID 2672 wrote to memory of 2820	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	36
PID 2672 wrote to memory of 1748	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	38
PID 2672 wrote to memory of 1748	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	38
PID 2672 wrote to memory of 1748	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	38
PID 2672 wrote to memory of 1748	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	38
PID 2672 wrote to memory of 2564	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	41
PID 2672 wrote to memory of 2564	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	41
PID 2672 wrote to memory of 2564	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	41
PID 2672 wrote to memory of 2564	2672	JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe	41
PID 2884 wrote to memory of 2084	2884	oezlfrvn.exe	43
PID 2884 wrote to memory of 2084	2884	oezlfrvn.exe	43
PID 2884 wrote to memory of 2084	2884	oezlfrvn.exe	43
PID 2884 wrote to memory of 2084	2884	oezlfrvn.exe	43
PID 2884 wrote to memory of 2084	2884	oezlfrvn.exe	43
PID 2884 wrote to memory of 2084	2884	oezlfrvn.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qurtaigi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oezlfrvn.exe" C:\Windows\SysWOW64\qurtaigi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qurtaigi binPath= "C:\Windows\SysWOW64\qurtaigi\oezlfrvn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qurtaigi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qurtaigi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1748
- 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:2564

C:\Windows\SysWOW64\qurtaigi\oezlfrvn.exe
C:\Windows\SysWOW64\qurtaigi\oezlfrvn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f51c2f5462cfec5c2f84094510cc5dbfb5e650de474c0e1f2571ccb61f2b3f3e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2884
- 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:2084

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\oezlfrvn.exe

Filesize
11.2MB

MD5
5fc5576443864ed1da6c56b27c84ce88

SHA1
274d036ad15f17a20cae2186212d426850bbcfaa

SHA256
e4e17e94e6b9edb28291327609b0c03e20fe462b48b47a8f550db984c3f2c988

SHA512
572a95178667bdae3563ff06026b6675a2f1245efd30e8967d60275c2075bbf3383f05863d4e3985fe83e6160dfa3dec501b169a3eae1fded666d2924babf166

Download Submit
memory/2084-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2084-12-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2084-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2084-9-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2084-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2672-2-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2672-3-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2672-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2884-15-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads