Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3547429a4a832ee…

MALICIOUS

PDF

38.5 KB Created: 2020-04-02 11:31:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5722d3e3b28927285f0f95aec2087a61 SHA-1: 09c17d6322ade7e8b96592be09a8b684583e0f97 SHA-256: c3547429a4a832eecfe29f19fed69c0db4f34340f1f1633cf8b2c420ce559f80
62 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, a technique often used for SEO poisoning or to redirect users to malicious content. The document body and extracted links suggest a lure for free book downloads, which likely leads to further malicious PDFs hosted on various domains. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' which strongly suggests this is a malicious link distribution mechanism.

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.
  • 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://biofieldtherapy.net/uploads/1/3/0/5/130539516/130539516.html#enterprise+integration+patterns+book+free+download
    • http://elvi.site/uploads/1/3/0/6/130639683/gilepuwuveso_fulufotona_bipof.pdf
    • http://allyouneedislovelyrics.com/uploads/1/3/0/6/130620958/cc7d4ec25e.pdf
    • http://therapybybrennamccolm.com/uploads/1/3/1/3/131381067/b3d74b9.pdf
    • http://gamewirelive.com/uploads/1/3/0/8/130814172/6680739.pdf
    • http://frankfurt-presbyterian-church.com/uploads/1/3/0/8/130813117/tabowix.pdf
    • http://soundwallstudios.com/uploads/1/3/0/7/130775841/tupun.pdf
    • http://bidsaz.com/uploads/1/3/0/8/130814021/vokotikujodono.pdf
    • http://fwcsb.org/uploads/1/3/0/6/130605001/834d8d.pdf
    • http://compassionatedoula.com/uploads/1/3/0/2/130271076/bujuzomazu.pdf
    • http://occulteffects.com/uploads/1/3/0/2/130287946/54c6285897f.pdf
    • http://coastalpropertypartners.com/uploads/1/3/0/7/130740455/8660253.pdf
    • http://myvinagreen.com/uploads/1/3/0/6/130605212/6033315.pdf
    • http://hemperorgaea.com/uploads/1/3/0/4/130489123/nifekojav.pdf
    • http://slayedimpressions.com/uploads/1/3/0/4/130476748/5405457.pdf
    • http://beachbodstci.com/uploads/1/3/1/4/131438847/toxumumugowezitaju.pdf
    • http://jeral.org/uploads/1/3/0/8/130874095/8184549.pdf
    • http://landofilluminatedseers.com/uploads/1/3/0/4/130476327/343e35b4.pdf
    • http://brentspics.com/uploads/1/3/0/6/130639714/9807644.pdf
    • http://yogalounge-schweinfurt.com/uploads/1/3/0/3/130313702/vuviginex-sipexipegake-dudurudi-zijovenigudep.pdf
    • http://sigerpestcontrol.com/uploads/1/3/1/4/131408033/fomiravusav.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_off00006eaf.bin
058e06dcdc54485d4dbfce3a7fc6277f3278c0c79cd493a8b14e996768ba9b44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAF 7588 bytes

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