tofsee | 2477e4fdf1faf8de44ab120dc92ed7f485ce0c4cb734574907a7776b70265aee

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-10-2024 20:25

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General

Target

673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe
Size

12.2MB
MD5

673fd280acc70fb5a29c183c583b5435
SHA1

18a44308d157d47d534c6d8059a831ac38c43125
SHA256

2477e4fdf1faf8de44ab120dc92ed7f485ce0c4cb734574907a7776b70265aee
SHA512

b38862ecebf3aadb59ada9efba0ebec09ec23903352b36735f9e8c17b324c1800791af1bd5a95153dcb29ed99c10ab7dd04ec9fb6cecfc2a70827707788206e5
SSDEEP

12288:06oEnffffffffffffffffffffffffffffffffffffffffffffffffffffffffff/:06

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

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\xwilxjqm = "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
2776	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\xwilxjqm\ImagePath = "C:\\Windows\\SysWOW64\\xwilxjqm\\cjhsxsgu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	cjhsxsgu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2736 set thread context of 2760	2736	cjhsxsgu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
300	sc.exe
1336	sc.exe
2352	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	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cjhsxsgu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 1528 wrote to memory of 1512	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	30
PID 1528 wrote to memory of 1512	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	30
PID 1528 wrote to memory of 1512	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	30
PID 1528 wrote to memory of 1512	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	30
PID 1528 wrote to memory of 2600	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	32
PID 1528 wrote to memory of 2600	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	32
PID 1528 wrote to memory of 2600	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	32
PID 1528 wrote to memory of 2600	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	32
PID 1528 wrote to memory of 2352	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	34
PID 1528 wrote to memory of 2352	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	34
PID 1528 wrote to memory of 2352	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	34
PID 1528 wrote to memory of 2352	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	34
PID 1528 wrote to memory of 300	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	36
PID 1528 wrote to memory of 300	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	36
PID 1528 wrote to memory of 300	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	36
PID 1528 wrote to memory of 300	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	36
PID 1528 wrote to memory of 1336	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	38
PID 1528 wrote to memory of 1336	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	38
PID 1528 wrote to memory of 1336	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	38
PID 1528 wrote to memory of 1336	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	38
PID 1528 wrote to memory of 2776	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	41
PID 1528 wrote to memory of 2776	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	41
PID 1528 wrote to memory of 2776	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	41
PID 1528 wrote to memory of 2776	1528	673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe	41
PID 2736 wrote to memory of 2760	2736	cjhsxsgu.exe	43
PID 2736 wrote to memory of 2760	2736	cjhsxsgu.exe	43
PID 2736 wrote to memory of 2760	2736	cjhsxsgu.exe	43
PID 2736 wrote to memory of 2760	2736	cjhsxsgu.exe	43
PID 2736 wrote to memory of 2760	2736	cjhsxsgu.exe	43
PID 2736 wrote to memory of 2760	2736	cjhsxsgu.exe	43

C:\Users\Admin\AppData\Local\Temp\673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xwilxjqm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cjhsxsgu.exe" C:\Windows\SysWOW64\xwilxjqm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xwilxjqm binPath= "C:\Windows\SysWOW64\xwilxjqm\cjhsxsgu.exe /d\"C:\Users\Admin\AppData\Local\Temp\673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2352
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xwilxjqm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xwilxjqm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1336
- 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:2776

C:\Windows\SysWOW64\xwilxjqm\cjhsxsgu.exe
C:\Windows\SysWOW64\xwilxjqm\cjhsxsgu.exe /d"C:\Users\Admin\AppData\Local\Temp\673fd280acc70fb5a29c183c583b5435_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736
- 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:2760

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\cjhsxsgu.exe

Filesize
10.6MB

MD5
71d89abd410b24743d2fb9cedfe0a2c7

SHA1
87fd44426f1903f0a796e2217e8c38de20b5653b

SHA256
714309d80bd3e1342352eba4b3a3abd533d9ac66f998f320e09a578d924ee141

SHA512
41094fa3bfd3bd5818a609bb15a903d6b58af02c3e370a7b4c5a6eeb065e19932b0d655125193109e6d3665c49251ae6d393fa0fabff02bf418ab5426cc05e9e

Download Submit
memory/1528-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/1528-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1528-4-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1528-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1528-9-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2736-16-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2760-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2760-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2760-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2760-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads