tofsee | 9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8

Analysis

max time kernel
149s
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, 17:19

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General

Target

JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe
Size

228KB
MD5

39f8a25f73e04416c3de07548c94287d
SHA1

ab931fd48f4711835300f7d26fefb6720e998633
SHA256

9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8
SHA512

e909e52d5ef6804fca2111b0131d8892a9a1c747f80d4968292e7228d26b61517657ea63f319e14ee6692b509220895d4cf66e1a3ff208e56beeeeedfc298880
SSDEEP

3072:AcFOZRBBnLzOcn1H6yVphikEkzRO0SXT7yX1bNYys++2U0zsVbMDTAo:AcFO3XScn1HfpLEkNrN7JlRj

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\enljwnka = "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
2756	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\enljwnka\ImagePath = "C:\\Windows\\SysWOW64\\enljwnka\\oiekvfxd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2656	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	oiekvfxd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2656	2784	oiekvfxd.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2776	sc.exe
2868	sc.exe
1684	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oiekvfxd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2444	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	30
PID 2560 wrote to memory of 2444	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	30
PID 2560 wrote to memory of 2444	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	30
PID 2560 wrote to memory of 2444	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	30
PID 2560 wrote to memory of 1704	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	32
PID 2560 wrote to memory of 1704	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	32
PID 2560 wrote to memory of 1704	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	32
PID 2560 wrote to memory of 1704	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	32
PID 2560 wrote to memory of 1684	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	34
PID 2560 wrote to memory of 1684	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	34
PID 2560 wrote to memory of 1684	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	34
PID 2560 wrote to memory of 1684	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	34
PID 2560 wrote to memory of 2776	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	36
PID 2560 wrote to memory of 2776	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	36
PID 2560 wrote to memory of 2776	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	36
PID 2560 wrote to memory of 2776	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	36
PID 2560 wrote to memory of 2868	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	38
PID 2560 wrote to memory of 2868	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	38
PID 2560 wrote to memory of 2868	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	38
PID 2560 wrote to memory of 2868	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	38
PID 2560 wrote to memory of 2756	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	41
PID 2560 wrote to memory of 2756	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	41
PID 2560 wrote to memory of 2756	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	41
PID 2560 wrote to memory of 2756	2560	JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe	41
PID 2784 wrote to memory of 2656	2784	oiekvfxd.exe	43
PID 2784 wrote to memory of 2656	2784	oiekvfxd.exe	43
PID 2784 wrote to memory of 2656	2784	oiekvfxd.exe	43
PID 2784 wrote to memory of 2656	2784	oiekvfxd.exe	43
PID 2784 wrote to memory of 2656	2784	oiekvfxd.exe	43
PID 2784 wrote to memory of 2656	2784	oiekvfxd.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\enljwnka\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oiekvfxd.exe" C:\Windows\SysWOW64\enljwnka\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create enljwnka binPath= "C:\Windows\SysWOW64\enljwnka\oiekvfxd.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description enljwnka "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start enljwnka
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- 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:2756

C:\Windows\SysWOW64\enljwnka\oiekvfxd.exe
C:\Windows\SysWOW64\enljwnka\oiekvfxd.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9ff44d9fb9de4235ad6b9046731a425c2be0329f36c6d8d31980aa85c71e05a8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2656

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\oiekvfxd.exe

Filesize
10.1MB

MD5
e206e2e06ab2bcc4a03e669ea9a8e796

SHA1
604c84ce8b4619b1a88cbec276b1380da388f482

SHA256
7a934cf0270f92bf711b3d21a758830c9bd515e95967dd427d7c7706696e9784

SHA512
9e85fc709232dda252c7162e4077c9d6192650875762fd409c35e6670bcf43f0535e46dfada93f7e4ebba945777c7fc200067dcf12b493ee4d7b76237dfefbe3

Download Submit
memory/2560-8-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/2560-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2560-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2560-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2560-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2560-1-0x0000000000940000-0x0000000000A40000-memory.dmp

Filesize
1024KB

Download
memory/2656-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2656-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2656-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2656-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2784-17-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads