Windows Analysis Report
malicious.pdf

Overview

General Information

Sample name: malicious.pdf
Analysis ID: 1559186
MD5: 18f28301e3a28e641428a35be5412f3c
SHA1: 309db4d0a6dac3e7dad08ebf457e951d7211b4f2
SHA256: bff4f8d4e255115b1e9259c1f7bbad7b2ffa2f0718734f78b4060eefc3bc698f
Infos:

Detection

Score: 2
Range: 0 - 100
Whitelisted: false
Confidence: 80%

Signatures

IP address seen in connection with other malware
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication

Classification

Source: global traffic DNS query: name: x1.i.lencr.org
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 192.168.2.16:49713 -> 23.47.168.24:443
Source: global traffic TCP traffic: 23.47.168.24:443 -> 192.168.2.16:49713
Source: Joe Sandbox View IP Address: 23.47.168.24 23.47.168.24
Source: global traffic HTTP traffic detected: GET /onboarding/smskillreader.txt HTTP/1.1Host: armmf.adobe.comConnection: keep-aliveAccept-Language: en-US,en;q=0.9User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ReaderServices/23.6.20320 Chrome/105.0.0.0 Safari/537.36Sec-Fetch-Site: same-originSec-Fetch-Mode: no-corsSec-Fetch-Dest: emptyAccept-Encoding: gzip, deflate, br
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown TCP traffic detected without corresponding DNS query: 23.47.168.24
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic HTTP traffic detected: GET /onboarding/smskillreader.txt HTTP/1.1Host: armmf.adobe.comConnection: keep-aliveAccept-Language: en-US,en;q=0.9User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ReaderServices/23.6.20320 Chrome/105.0.0.0 Safari/537.36Sec-Fetch-Site: same-originSec-Fetch-Mode: no-corsSec-Fetch-Dest: emptyAccept-Encoding: gzip, deflate, br
Source: global traffic DNS traffic detected: DNS query: x1.i.lencr.org
Source: 77EC63BDA74BD0D0E0426DC8F80085060.3.dr String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
Source: 2D85F72862B55C4EADD9E66E06947F3D0.3.dr String found in binary or memory: http://x1.i.lencr.org/
Source: 4e4ac4f8-7fc3-46d5-8769-95c6ae06ad90.tmp.4.dr String found in binary or memory: https://chrome.cloudflare-dns.com
Source: unknown Network traffic detected: HTTP traffic on port 49713 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49713
Source: classification engine Classification label: clean2.winPDF@16/49@1/1
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe File created: C:\Users\user\AppData\Local\Adobe\Acrobat\DC\SharedDataEvents-journal Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe File created: C:\Users\user\AppData\Local\Temp\acrobat_sbx\NGL\NGLClient_AcrobatReader123.6.20320.6 2024-11-20 03-36-16-566.log Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\SystemCertificates\CA Jump to behavior
Source: unknown Process created: C:\Windows\System32\rundll32.exe C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Source: unknown Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\user\Desktop\malicious.pdf"
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --backgroundcolor=16777215
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --log-severity=disable --user-agent-product="ReaderServices/23.6.20320 Chrome/105.0.0.0" --lang=en-US --log-file="C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\debug.log" --mojo-platform-channel-handle=2260 --field-trial-handle=1568,i,3100234640448573471,16781718613687927761,131072 --disable-features=BackForwardCache,CalculateNativeWinOcclusion,WinUseBrowserSpellChecker /prefetch:8
Source: unknown Process created: C:\Windows\System32\rundll32.exe C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --backgroundcolor=16777215 Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --log-severity=disable --user-agent-product="ReaderServices/23.6.20320 Chrome/105.0.0.0" --lang=en-US --log-file="C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\debug.log" --mojo-platform-channel-handle=2260 --field-trial-handle=1568,i,3100234640448573471,16781718613687927761,131072 --disable-features=BackForwardCache,CalculateNativeWinOcclusion,WinUseBrowserSpellChecker /prefetch:8 Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process created: unknown unknown Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs