Malicious PDF — malware analysis report

Static analysis result for SHA-256 5240cecf50936f06…

MALICIOUS

PDF

39.8 KB Created: 2020-03-23 02:09:27 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ec2e7e66ff7b3b18c21fac143b02bf8a SHA-1: a362a0229b58e51a14fe555cba1e8b9c516fca11 SHA-256: 5240cecf50936f060754c9fff353b77fb5620d02d84dbd45ba7951414afbf67e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to other PDF files. This pattern is indicative of a link farm used to distribute malicious content or conduct phishing. The presence of a callback lure suggests a potential scam or phishing attempt where users are prompted to call a number for assistance. The document body itself is largely unreadable, but the presence of the URL http://becdaxis.com/uploads/1/3/0/6/130604775/130604775.html#aa+meetings+chattanooga+tennessee and the heuristic PDF_SEO_LINK_FARM strongly suggest a malicious intent to redirect users to harmful sites.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://becdaxis.com/uploads/1/3/0/6/130604775/130604775.html#aa+meetings+chattanooga+tennessee
    • http://alwayscal.com/uploads/1/3/0/6/130604531/3548290.pdf
    • http://playrate.club/uploads/1/3/0/5/130541552/fe1ba341acf.pdf
    • http://beekeepinginalaska.com/uploads/1/3/0/5/130543168/wowedojotir.pdf
    • http://royal34.net/uploads/1/3/0/7/130776605/nemupamawibakej.pdf
    • http://dcsportsmanship.org/uploads/1/3/0/2/130271009/pogase-risupugigore-mebeje.pdf
    • http://alanjonesart.com/uploads/1/3/0/6/130639442/376120.pdf
    • http://phumyhungmidtown.net/uploads/1/3/0/4/130435906/abcc230.pdf
    • http://gabrielledrouin.com/uploads/1/3/0/3/130379523/nusitinatizidu.pdf
    • http://www.adhd-in-focus.co/uploads/1/3/0/6/130620854/8829681.pdf
    • http://911snowremoval.com/uploads/1/3/0/4/130478009/04a00e9c356ff.pdf
    • http://vancouvergaragerepair.com/uploads/1/3/0/5/130543210/luwalikenuzubidis.pdf
    • http://martinapook.com/uploads/1/3/0/8/130813509/1830086.pdf
    • http://cpgrecruiter.com/uploads/1/3/0/5/130590741/xabetatijutofegix.pdf
    • http://okrecyclingsolutions.com/uploads/1/3/0/5/130550752/jilinemozifofemaz.pdf
    • http://healthybrowngirl.com/uploads/1/3/0/5/130551299/wekenezof-sozawejal-domize.pdf
    • http://vjfeeds.com/uploads/1/3/0/6/130639173/66df4b6b0f5bc7.pdf
    • http://cageclaypool.net/uploads/1/3/1/0/131069997/e398d110.pdf
    • http://techfast.net/uploads/1/3/0/8/130874642/didajaj_wefefajudonozam_wegasiguzijoti_bepexolibitiz.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f44.bin
8f1cfaa3a1c533eb2689356ef455e6851ecbf4bbf885fd6d44d4ab492a6f8056
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F44 8584 bytes