webmonitor | 00d778b5fc11785ec2e51beb292a872a790a54a48889558ca64f03d8e9a1a6fd

Analysis

max time kernel
141s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07/01/2025, 14:02

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General

Target

JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
Size

1.8MB
MD5

671abad82fb56ab716e9e0ffbca116ce
SHA1

3707df01e839d5b67604debfbc762011593eb822
SHA256

00d778b5fc11785ec2e51beb292a872a790a54a48889558ca64f03d8e9a1a6fd
SHA512

c0d560081734ade5adcc32d401a014b53410270e1a8e97065bf2c04decdeece555762b6834dd20366aa4b75586a6dcdb6616f7b004d8ff429f3681d862bc2bdf
SSDEEP

49152:CG6rYHQQFDut9t96xHVur1h63EuHenNMZ+Kzi:q8HQSosHM63EEWNMvzi

Score

10^/10

webmonitor backdoor defense_evasion discovery execution infostealer persistence privilege_escalation rat upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\client.exe\","	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe

RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
backdoor rat infostealer webmonitor

WebMonitor payload 4 IoCs

resource	yara_rule
behavioral1/memory/2104-38-0x0000000000400000-0x00000000005F7000-memory.dmp	family_webmonitor
behavioral1/memory/2104-40-0x0000000000400000-0x00000000005F7000-memory.dmp	family_webmonitor
behavioral1/memory/2104-48-0x0000000000400000-0x00000000005F7000-memory.dmp	family_webmonitor
behavioral1/memory/2104-49-0x0000000000400000-0x00000000005F7000-memory.dmp	family_webmonitor

Webmonitor family
webmonitor

Detected Nirsoft tools 1 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/files/0x003000000001939b-7.dat	Nirsoft

Executes dropped EXE 4 IoCs

pid	Process
2624	AdvancedRun.exe
408	AdvancedRun.exe
2592	AdvancedRun.exe
2664	AdvancedRun.exe

Loads dropped DLL 8 IoCs

pid	Process
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
2624	AdvancedRun.exe
2624	AdvancedRun.exe
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
2592	AdvancedRun.exe
2592	AdvancedRun.exe

Unexpected DNS network traffic destination 6 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	1.2.4.8
Destination IP	185.141.152.26
Destination IP	185.141.152.26
Destination IP	185.141.152.26
Destination IP	1.2.4.8
Destination IP	114.114.114.114

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2436	powershell.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 844 set thread context of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2104-31-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-38-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-37-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-36-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-40-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-33-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-48-0x0000000000400000-0x00000000005F7000-memory.dmp	upx
behavioral1/memory/2104-49-0x0000000000400000-0x00000000005F7000-memory.dmp	upx

Access Token Manipulation: Create Process with Token 1 TTPs 2 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
2624	AdvancedRun.exe
2592	AdvancedRun.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	AdvancedRun.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdvancedRun.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdvancedRun.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdvancedRun.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
2624	AdvancedRun.exe
2624	AdvancedRun.exe
408	AdvancedRun.exe
408	AdvancedRun.exe
2592	AdvancedRun.exe
2592	AdvancedRun.exe
2664	AdvancedRun.exe
2664	AdvancedRun.exe
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
1128	powershell.exe
2436	powershell.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
Token: SeDebugPrivilege	2624	AdvancedRun.exe
Token: SeImpersonatePrivilege	2624	AdvancedRun.exe
Token: SeDebugPrivilege	408	AdvancedRun.exe
Token: SeImpersonatePrivilege	408	AdvancedRun.exe
Token: SeDebugPrivilege	2592	AdvancedRun.exe
Token: SeImpersonatePrivilege	2592	AdvancedRun.exe
Token: SeDebugPrivilege	2664	AdvancedRun.exe
Token: SeImpersonatePrivilege	2664	AdvancedRun.exe
Token: SeDebugPrivilege	2104	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
Token: SeDebugPrivilege	1128	powershell.exe
Token: SeDebugPrivilege	2436	powershell.exe
Token: SeShutdownPrivilege	2104	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 2624	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	29
PID 844 wrote to memory of 2624	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	29
PID 844 wrote to memory of 2624	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	29
PID 844 wrote to memory of 2624	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	29
PID 2624 wrote to memory of 408	2624	AdvancedRun.exe	30
PID 2624 wrote to memory of 408	2624	AdvancedRun.exe	30
PID 2624 wrote to memory of 408	2624	AdvancedRun.exe	30
PID 2624 wrote to memory of 408	2624	AdvancedRun.exe	30
PID 844 wrote to memory of 2592	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	31
PID 844 wrote to memory of 2592	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	31
PID 844 wrote to memory of 2592	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	31
PID 844 wrote to memory of 2592	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	31
PID 2592 wrote to memory of 2664	2592	AdvancedRun.exe	32
PID 2592 wrote to memory of 2664	2592	AdvancedRun.exe	32
PID 2592 wrote to memory of 2664	2592	AdvancedRun.exe	32
PID 2592 wrote to memory of 2664	2592	AdvancedRun.exe	32
PID 844 wrote to memory of 2428	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	33
PID 844 wrote to memory of 2428	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	33
PID 844 wrote to memory of 2428	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	33
PID 844 wrote to memory of 2428	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	33
PID 844 wrote to memory of 1128	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	34
PID 844 wrote to memory of 1128	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	34
PID 844 wrote to memory of 1128	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	34
PID 844 wrote to memory of 1128	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	34
PID 2428 wrote to memory of 2436	2428	WScript.exe	36
PID 2428 wrote to memory of 2436	2428	WScript.exe	36
PID 2428 wrote to memory of 2436	2428	WScript.exe	36
PID 2428 wrote to memory of 2436	2428	WScript.exe	36
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38
PID 844 wrote to memory of 2104	844	JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe	38

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:844
- C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
  "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /EXEFilename "C:\Windows\System32\sc.exe" /WindowState 0 /CommandLine "stop WinDefend" /StartDirectory "" /RunAs 8 /Run
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Access Token Manipulation: Create Process with Token
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /SpecialRun 4101d8 2624
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:408
- C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
  "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /EXEFilename "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" /WindowState 0 /CommandLine "rmdir 'C:\ProgramData\Microsoft\Windows Defender' -Recurse" /StartDirectory "" /RunAs 8 /Run
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Access Token Manipulation: Create Process with Token
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe
    "C:\Users\Admin\AppData\Local\Temp\AdvancedRun.exe" /SpecialRun 4101d8 2592
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2664
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Hnvcckcidfhn.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\client.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2436
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe" -Force
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1128
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_671abad82fb56ab716e9e0ffbca116ce.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Indicator Removal

T1070

File Deletion

T1070.004

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_Hnvcckcidfhn.vbs

Filesize
174B

MD5
feda97cc79935ff267c380710e5526e9

SHA1
6a530ce454743f709d4dad5d906094e8186b55f5

SHA256
e1747ba74fc44e55409922fe4cb9a610655ae1f62e322dd3e610b08044fdd6a1

SHA512
bbdbc421d6f3df0146bfacb503337aa19706e8f81245bc187a2076dea703245f52aaf49e3031a277d040f3405f54122952264be7ad4e0eb3682ffb6e7257ce1f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
15809c6079a51fe207a5e1d3a7f7da70

SHA1
8b997c8466ad2ddda2745131017396eeff2099c2

SHA256
1281ee8071fe7f2955aac6aff8f615d0462f7a215bc2d6076a1d499349a23b38

SHA512
6e8c1b5da29559333fd8510b5c907e1a4e42b7ea03f8d09aeb490c36bde2a78d3f74c03c1be87d5e2b6e686067f22e8f0595d041fd422e5c05cc6e4ddd6b68de

Download Submit
\Users\Admin\AppData\Local\Temp\AdvancedRun.exe

Filesize
88KB

MD5
17fc12902f4769af3a9271eb4e2dacce

SHA1
9a4a1581cc3971579574f837e110f3bd6d529dab

SHA256
29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

SHA512
036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

Download Submit
memory/844-5-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/844-39-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/844-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/844-3-0x0000000004A60000-0x0000000004C1E000-memory.dmp

Filesize
1.7MB

Download
memory/844-2-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/844-1-0x0000000000B50000-0x0000000000D1E000-memory.dmp

Filesize
1.8MB

Download
memory/844-4-0x0000000004890000-0x000000000494E000-memory.dmp

Filesize
760KB

Download
memory/2104-37-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-38-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-31-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-36-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-40-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-29-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2104-33-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-48-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download
memory/2104-49-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download