Windows Analysis Report
Fawn SR.pdf

Overview

General Information

Sample name: Fawn SR.pdf
Analysis ID: 1546427
MD5: 21b8872312436e51fd92f4b352475db1
SHA1: 7d43e86b53a4e2accb4cccd2eab407e11b2fc40a
SHA256: aec16b70aa501f232237963786262b957012796870aa51a59d86814673542ffd
Infos:

Detection

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

Signatures

Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Suricata IDS alerts with low severity for network 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: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 192.168.2.4:49745 -> 96.6.160.189:443
Source: global traffic TCP traffic: 96.6.160.189:443 -> 192.168.2.4:49745
Source: Network traffic Suricata IDS: 2022930 - Severity 1 - ET EXPLOIT Possible CVE-2016-2211 Symantec Cab Parsing Buffer Overflow : 20.12.23.50:443 -> 192.168.2.4:57101
Source: Network traffic Suricata IDS: 2022930 - Severity 1 - ET EXPLOIT Possible CVE-2016-2211 Symantec Cab Parsing Buffer Overflow : 20.12.23.50:443 -> 192.168.2.4:49744
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, brIf-None-Match: "78-5faa31cce96da"If-Modified-Since: Mon, 01 May 2023 15:02:33 GMT
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
Source: unknown TCP traffic detected without corresponding DNS query: 96.6.160.189
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, brIf-None-Match: "78-5faa31cce96da"If-Modified-Since: Mon, 01 May 2023 15:02:33 GMT
Source: global traffic DNS traffic detected: DNS query: x1.i.lencr.org
Source: 77EC63BDA74BD0D0E0426DC8F80085060.1.dr String found in binary or memory: http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
Source: 2D85F72862B55C4EADD9E66E06947F3D0.1.dr String found in binary or memory: http://x1.i.lencr.org/
Source: unknown Network traffic detected: HTTP traffic on port 49745 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49745
Source: classification engine Classification label: clean2.winPDF@14/47@1/1
Source: C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe File created: C:\Users\user\AppData\Local\Adobe\Acrobat\DC\AdobeFnt23.lst.6236 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 2024-10-31 16-47-42-952.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:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe "C:\Program Files\Adobe\Acrobat DC\Acrobat\Acrobat.exe" "C:\Users\user\Desktop\Fawn SR.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 --user-data-dir="C:\Users\user\AppData\Local\CEF\User Data" --log-file="C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\debug.log" --mojo-platform-channel-handle=2096 --field-trial-handle=1660,i,4725044180020461910,8330491623448977777,131072 --disable-features=BackForwardCache,CalculateNativeWinOcclusion,WinUseBrowserSpellChecker /prefetch:8
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 --user-data-dir="C:\Users\user\AppData\Local\CEF\User Data" --log-file="C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\debug.log" --mojo-platform-channel-handle=2096 --field-trial-handle=1660,i,4725044180020461910,8330491623448977777,131072 --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: Window Recorder Window detected: More than 3 window changes detected
Source: Fawn SR.pdf Initial sample: PDF keyword /JS count = 0
Source: Fawn SR.pdf Initial sample: PDF keyword /JavaScript count = 0
Source: Fawn SR.pdf Initial sample: PDF keyword stream count = 30
Source: Fawn SR.pdf Initial sample: PDF keyword /EmbeddedFile count = 0
Source: Fawn SR.pdf Initial sample: PDF keyword obj count = 53
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
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs