tofsee | fd853dd51a98c78662de39fb48e4f5b71febbb8cfe895e78ee7f2633305ff25a

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 20:09

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General

Target

7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe
Size

12.1MB
MD5

7aa6741e302f84504aa52aa5a2ce4325
SHA1

677ad05e27f235bf3fa558dd4e0d83f192f3037d
SHA256

fd853dd51a98c78662de39fb48e4f5b71febbb8cfe895e78ee7f2633305ff25a
SHA512

b4bb923b7b8b4cde620f276aa30e9a7812e4c596ace88d2d5c3d2e1ace22a9c8778725e237fb2602cbf403f9b67914544ae1a350cb1af5eaa99f77a32709277b
SSDEEP

24576:hMLXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:hM

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\nsinyksc = "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
2536	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\nsinyksc\ImagePath = "C:\\Windows\\SysWOW64\\nsinyksc\\kcltqdpj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1952	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2596	kcltqdpj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2596 set thread context of 1952	2596	kcltqdpj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2676	sc.exe
2576	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 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	sc.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	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.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	kcltqdpj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2968	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	31
PID 2636 wrote to memory of 2968	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	31
PID 2636 wrote to memory of 2968	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	31
PID 2636 wrote to memory of 2968	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	31
PID 2636 wrote to memory of 2160	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	33
PID 2636 wrote to memory of 2160	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	33
PID 2636 wrote to memory of 2160	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	33
PID 2636 wrote to memory of 2160	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	33
PID 2636 wrote to memory of 2676	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	35
PID 2636 wrote to memory of 2676	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	35
PID 2636 wrote to memory of 2676	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	35
PID 2636 wrote to memory of 2676	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	35
PID 2636 wrote to memory of 2576	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	37
PID 2636 wrote to memory of 2576	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	37
PID 2636 wrote to memory of 2576	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	37
PID 2636 wrote to memory of 2576	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	37
PID 2636 wrote to memory of 2708	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	39
PID 2636 wrote to memory of 2708	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	39
PID 2636 wrote to memory of 2708	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	39
PID 2636 wrote to memory of 2708	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	39
PID 2636 wrote to memory of 2536	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	42
PID 2636 wrote to memory of 2536	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	42
PID 2636 wrote to memory of 2536	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	42
PID 2636 wrote to memory of 2536	2636	7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe	42
PID 2596 wrote to memory of 1952	2596	kcltqdpj.exe	44
PID 2596 wrote to memory of 1952	2596	kcltqdpj.exe	44
PID 2596 wrote to memory of 1952	2596	kcltqdpj.exe	44
PID 2596 wrote to memory of 1952	2596	kcltqdpj.exe	44
PID 2596 wrote to memory of 1952	2596	kcltqdpj.exe	44
PID 2596 wrote to memory of 1952	2596	kcltqdpj.exe	44

C:\Users\Admin\AppData\Local\Temp\7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nsinyksc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kcltqdpj.exe" C:\Windows\SysWOW64\nsinyksc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nsinyksc binPath= "C:\Windows\SysWOW64\nsinyksc\kcltqdpj.exe /d\"C:\Users\Admin\AppData\Local\Temp\7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nsinyksc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nsinyksc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- 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:2536

C:\Windows\SysWOW64\nsinyksc\kcltqdpj.exe
C:\Windows\SysWOW64\nsinyksc\kcltqdpj.exe /d"C:\Users\Admin\AppData\Local\Temp\7aa6741e302f84504aa52aa5a2ce4325_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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:1952

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\kcltqdpj.exe

Filesize
14.8MB

MD5
3017e92e838b92936c9dbbc6bd99aeb4

SHA1
81cd6744624e2615c6827609dce36ced99550563

SHA256
708fbdd132ccc88602917ecdff183b32ed60d5c6dac43619107cea378e5f5530

SHA512
c9782121d6639164be55fbbdf0f65644bf196e0704576562411276d029f35862257bf5cba89f336b761494fd358ad26edaca51226b56dc25ce3a8f464a6b858c

Download Submit
memory/1952-11-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/1952-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/1952-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1952-14-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/1952-18-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2596-17-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/2636-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2636-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-9-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2636-8-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/2636-1-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads