tofsee | 7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80

Analysis

max time kernel
149s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 18:32

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General

Target

JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe
Size

326KB
MD5

54ae2cec8e4f3385f4b53ee4a6180dfb
SHA1

062ace849bf3d19f145cf128c85c3fc1a60ba04e
SHA256

7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80
SHA512

40e962fa9fb8462b30f24d280a171120ec0fcb76e696267ffb2571794782672dcf26e7c805a354f78c62ec603f669d7d3f689848ded0e85b2969a10fcc698b35
SSDEEP

6144:kfMactU4cVJPeabc9J9FWWeo6coYcY4ltse:0QU4cVJPe3D9FNo2

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

patmushta.info

ovicrush.cn

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\itnxiwdw = "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
2740	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\itnxiwdw\ImagePath = "C:\\Windows\\SysWOW64\\itnxiwdw\\pkzvprpk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	pkzvprpk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2936	2772	pkzvprpk.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2720	sc.exe
2868	sc.exe
2708	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pkzvprpk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe
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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2240	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	31
PID 2432 wrote to memory of 2240	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	31
PID 2432 wrote to memory of 2240	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	31
PID 2432 wrote to memory of 2240	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	31
PID 2432 wrote to memory of 2548	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	33
PID 2432 wrote to memory of 2548	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	33
PID 2432 wrote to memory of 2548	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	33
PID 2432 wrote to memory of 2548	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	33
PID 2432 wrote to memory of 2708	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	35
PID 2432 wrote to memory of 2708	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	35
PID 2432 wrote to memory of 2708	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	35
PID 2432 wrote to memory of 2708	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	35
PID 2432 wrote to memory of 2720	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	37
PID 2432 wrote to memory of 2720	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	37
PID 2432 wrote to memory of 2720	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	37
PID 2432 wrote to memory of 2720	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	37
PID 2432 wrote to memory of 2868	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	39
PID 2432 wrote to memory of 2868	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	39
PID 2432 wrote to memory of 2868	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	39
PID 2432 wrote to memory of 2868	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	39
PID 2432 wrote to memory of 2740	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	42
PID 2432 wrote to memory of 2740	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	42
PID 2432 wrote to memory of 2740	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	42
PID 2432 wrote to memory of 2740	2432	JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe	42
PID 2772 wrote to memory of 2936	2772	pkzvprpk.exe	44
PID 2772 wrote to memory of 2936	2772	pkzvprpk.exe	44
PID 2772 wrote to memory of 2936	2772	pkzvprpk.exe	44
PID 2772 wrote to memory of 2936	2772	pkzvprpk.exe	44
PID 2772 wrote to memory of 2936	2772	pkzvprpk.exe	44
PID 2772 wrote to memory of 2936	2772	pkzvprpk.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\itnxiwdw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pkzvprpk.exe" C:\Windows\SysWOW64\itnxiwdw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create itnxiwdw binPath= "C:\Windows\SysWOW64\itnxiwdw\pkzvprpk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description itnxiwdw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start itnxiwdw
  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:2740

C:\Windows\SysWOW64\itnxiwdw\pkzvprpk.exe
C:\Windows\SysWOW64\itnxiwdw\pkzvprpk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b3010ae8c798fc5d4cdcc0076e551a1785008554f192176323c60210ee02d80.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2936

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\pkzvprpk.exe

Filesize
13.3MB

MD5
088c0f1eb09715cba2bd8b57014546fc

SHA1
1d10299dd45ae39c22332cd259daa512d3e7a8a3

SHA256
a7987ba2d616e50c97ce33554db60aa7825cbe6617b27fba5c5fc7fd4058cc64

SHA512
8af5294f05fae43f809e41b3d18594a3541230479d9b1c48885acd0b3f7d3f378a42d3b7dfc91001716573c81e45ba9c189e35374ae3b212202051294379672b

Download Submit
memory/2432-7-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download
memory/2432-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2432-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2432-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2772-17-0x0000000000400000-0x0000000002B1C000-memory.dmp

Filesize
39.1MB

Download
memory/2936-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2936-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads