Malicious PDF — malware analysis report

Static analysis result for SHA-256 72cdd91d82782677…

MALICIOUS

PDF

34.9 KB Authoring application: Scribus
MD5: 8b99440e63fadc3b90a9e7a123c9fbcd SHA-1: 376d43cf801b92eb0f49172db74fbc60957aa98a SHA-256: 72cdd91d82782677b51e5f1d740892c7cfba7bd3af5242d07c430e45f2c45e50
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, indicative of a link farm or phishing campaign. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to direct users to malicious content or further phishing sites. The document body itself is heavily obfuscated and contains irrelevant text, further supporting a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://priorityrecruitingsolutions.com/uploads/1/3/0/4/130435990/4ee5231a6d9336.pdf
    • http://merrec.space/uploads/1/3/0/2/130271087/7562715.pdf
    • http://girlydiamonds.com/uploads/1/3/0/6/130604168/8567518.pdf
    • http://missionepossibilehk.com/uploads/1/3/0/4/130476004/d7df86c7367.pdf
    • http://sophiawisdomcenter.com/uploads/1/3/0/3/130313746/8f968b67.pdf
    • http://writelifecoaching.com/uploads/1/3/0/6/130621214/tasuterukanome.pdf
    • http://nazcamp.org/uploads/1/3/0/7/130739652/taxawarakemekamovalo.pdf
    • http://www.wendyestorgamusic.com/uploads/1/3/0/7/130776747/gefuwexagi_vasamife_kutizedelofamev_desowigidot.pdf
    • http://cofse.net/uploads/1/3/0/3/130379133/9412e.pdf
    • http://chilepeppersssi.com/uploads/1/3/0/5/130544089/9614837.pdf
    • http://nihao.limited/uploads/1/3/0/7/130776257/wefotex-ganerap-tesamidufoni-rukegolimewidi.pdf
    • http://cs-abq.com/uploads/1/3/0/7/130775215/5790376.pdf
    • http://www.china-industry-intelligence.com/uploads/1/3/0/8/130873790/5d379bc2e2.pdf
    • http://interfacelayer.com/uploads/1/3/0/5/130546036/2870465.pdf
    • http://lovellaweddings.net/uploads/1/3/0/2/130289332/fumifipuvolowop.pdf
    • http://mormorsgucci.com/uploads/1/3/0/8/130814687/peribex.pdf
    • http://offsite.studio/uploads/1/3/0/4/130483603/vugeponize.pdf
    • http://firlesgaming.club/uploads/1/3/0/4/130483498/bekozosutuvajaz_zapuli_wowekabig_ruvitil.pdf
    • http://shop.akcesoriacorp.com/uploads/1/3/0/5/130590117/temadogekureloli.pdf
    • http://waychilljesus.org/uploads/1/3/0/2/130289045/rarelajiviwedap_sapopodadag.pdf
    • http://mmflackdesigns.com/uploads/1/3/0/6/130621457/5028c7f.pdf
    • http://74-123-73-16.mgwnet.com/uploads/1/3/0/7/130775969/130775969.html#ayyappa+bajana+patalu+videos

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002652.bin
1e6d622538a9e328966b381d2f0a402d4f76b91575fe018d931c40170426eb6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2652 8296 bytes

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