webmonitor | 48d173767bf24bb9ad394d2581ecedfdefc4e31fd79b114a79a196eca7fb8876

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 23:04

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General

Target

ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe
Size

17.2MB
MD5

ee9a4ee14382824e759636426db0aa6f
SHA1

5ff8faa6df6c1ef352d4938be39a97092dd1c7c7
SHA256

48d173767bf24bb9ad394d2581ecedfdefc4e31fd79b114a79a196eca7fb8876
SHA512

4c7a3f81eb713b68c5cf8376ec5f55428294732f2c97bf5cd8bea876d569d2bf1e2d3a9c09e64b51411deaf37f1670d02a1cf192e7427f9cef3135f4a09b6656
SSDEEP

393216:8oiraP3TibAcVABUY/7+VRzBST8yYnnqop7sD4p6noceRC:8LaP3zcNYERzBSTOnnqO7sDI6B

Score

10^/10

webmonitor backdoor defense_evasion discovery infostealer persistence rat

Malware Config

Extracted

Family

webmonitor

worldbala.wm01.to:443

Attributes

config_key
1vt5MKV6CcJnGWsNVlYXmKcidNN2mBKt
private_key
NcwyDvFB8
url_path
/recv4.php

Signatures

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 2 IoCs

resource	yara_rule
behavioral2/memory/1728-28-0x0000000000400000-0x00000000004BE000-memory.dmp	family_webmonitor
behavioral2/memory/1728-30-0x0000000000400000-0x00000000004BE000-memory.dmp	family_webmonitor

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	GfnWebBrowser.exe

Executes dropped EXE 1 IoCs

pid	Process
5072	GfnWebBrowser.exe

Unexpected DNS network traffic destination 2 IoCs

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

description	ioc
Destination IP	185.141.152.26
Destination IP	185.141.152.26

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GfnWebBrowser = "C:\\Users\\Admin\\AppData\\Roaming\\GfnWebBrowser.exe -boot"	GfnWebBrowser.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5072 set thread context of 1728	5072	GfnWebBrowser.exe	106

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 4 IoCs

When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

defense_evasion

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe:Zone.Identifier	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe:Zone.Identifier	cmd.exe
File created	C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe:Zone.Identifier	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe:Zone.Identifier	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee9a4ee14382824e759636426db0aa6f_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GfnWebBrowser.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

NTFS ADS 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe:Zone.Identifier	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe:Zone.Identifier	cmd.exe
File created	C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe\:Zone.Identifier:$DATA	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe:Zone.Identifier	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe:Zone.Identifier	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe
Token: SeDebugPrivilege	5072	GfnWebBrowser.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 3020	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	89
PID 968 wrote to memory of 3020	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	89
PID 968 wrote to memory of 3020	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	89
PID 968 wrote to memory of 4716	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	91
PID 968 wrote to memory of 4716	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	91
PID 968 wrote to memory of 4716	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	91
PID 968 wrote to memory of 4484	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	93
PID 968 wrote to memory of 4484	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	93
PID 968 wrote to memory of 4484	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	93
PID 968 wrote to memory of 2636	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	97
PID 968 wrote to memory of 2636	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	97
PID 968 wrote to memory of 2636	968	ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe	97
PID 2636 wrote to memory of 5072	2636	cmd.exe	99
PID 2636 wrote to memory of 5072	2636	cmd.exe	99
PID 2636 wrote to memory of 5072	2636	cmd.exe	99
PID 5072 wrote to memory of 4732	5072	GfnWebBrowser.exe	100
PID 5072 wrote to memory of 4732	5072	GfnWebBrowser.exe	100
PID 5072 wrote to memory of 4732	5072	GfnWebBrowser.exe	100
PID 5072 wrote to memory of 3132	5072	GfnWebBrowser.exe	102
PID 5072 wrote to memory of 3132	5072	GfnWebBrowser.exe	102
PID 5072 wrote to memory of 3132	5072	GfnWebBrowser.exe	102
PID 5072 wrote to memory of 2520	5072	GfnWebBrowser.exe	104
PID 5072 wrote to memory of 2520	5072	GfnWebBrowser.exe	104
PID 5072 wrote to memory of 2520	5072	GfnWebBrowser.exe	104
PID 5072 wrote to memory of 3420	5072	GfnWebBrowser.exe	105
PID 5072 wrote to memory of 3420	5072	GfnWebBrowser.exe	105
PID 5072 wrote to memory of 3420	5072	GfnWebBrowser.exe	105
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106
PID 5072 wrote to memory of 1728	5072	GfnWebBrowser.exe	106

C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe:Zone.Identifier"
  2⤵
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  PID:3020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe:Zone.Identifier"
  2⤵
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  PID:4716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\ee9a4ee14382824e759636426db0aa6f_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  PID:4484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe
    "C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:5072
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe:Zone.Identifier"
      4⤵
      Subvert Trust Controls: Mark-of-the-Web Bypass
      System Location Discovery: System Language Discovery
      NTFS ADS
      PID:4732
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Roaming\GfnWebBrowser.exe:Zone.Identifier"
      4⤵
      Subvert Trust Controls: Mark-of-the-Web Bypass
      System Location Discovery: System Language Discovery
      NTFS ADS
      PID:3132
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:2520
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      PID:3420
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:1728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

SIP and Trust Provider Hijacking

T1553.003

Credential Access

Discovery

Query Registry

T1012

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\Roaming\GfnWebBrowser.exe

Filesize
17.2MB

MD5
ee9a4ee14382824e759636426db0aa6f

SHA1
5ff8faa6df6c1ef352d4938be39a97092dd1c7c7

SHA256
48d173767bf24bb9ad394d2581ecedfdefc4e31fd79b114a79a196eca7fb8876

SHA512
4c7a3f81eb713b68c5cf8376ec5f55428294732f2c97bf5cd8bea876d569d2bf1e2d3a9c09e64b51411deaf37f1670d02a1cf192e7427f9cef3135f4a09b6656

Download Submit
memory/968-12-0x0000000005EE0000-0x0000000005EE6000-memory.dmp

Filesize
24KB

Download
memory/968-8-0x0000000005EB0000-0x0000000005ED2000-memory.dmp

Filesize
136KB

Download
memory/968-3-0x0000000003810000-0x000000000383A000-memory.dmp

Filesize
168KB

Download
memory/968-4-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/968-5-0x0000000006830000-0x0000000006896000-memory.dmp

Filesize
408KB

Download
memory/968-6-0x0000000005E40000-0x0000000005E4A000-memory.dmp

Filesize
40KB

Download
memory/968-7-0x0000000006A70000-0x0000000006C32000-memory.dmp

Filesize
1.8MB

Download
memory/968-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/968-9-0x00000000071F0000-0x0000000007794000-memory.dmp

Filesize
5.6MB

Download
memory/968-10-0x0000000005E50000-0x0000000005E5C000-memory.dmp

Filesize
48KB

Download
memory/968-11-0x0000000006980000-0x0000000006A12000-memory.dmp

Filesize
584KB

Download
memory/968-2-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/968-1-0x0000000000440000-0x00000000014E2000-memory.dmp

Filesize
16.6MB

Download
memory/968-18-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/968-13-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/1728-28-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/1728-30-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/5072-23-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/5072-24-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/5072-25-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/5072-26-0x0000000006E00000-0x0000000006E0C000-memory.dmp

Filesize
48KB

Download
memory/5072-27-0x0000000007770000-0x000000000780C000-memory.dmp

Filesize
624KB

Download
memory/5072-22-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/5072-31-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads