Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b7aa468e53bc589…

MALICIOUS

PDF

38.7 KB Created: 2020-05-13 04:54:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5ebed0a83d0236b4ebc99b94f640ae90 SHA-1: ee747a359b0a01bd9730671ef3f55ed3609a21d0 SHA-256: 3b7aa468e53bc589f09804ac6b6aa36e4f45c4e54335c474d005b799a05b7fe0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded URLs, many of which point to similarly structured paths on different domains. This pattern is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malicious content or phishing pages. The primary heuristic identified a 'PDF_SEO_LINK_FARM' which strongly supports this assessment. No scripts were extracted from this sample.

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://hbcphx.org/uploads/1/3/0/4/130483198/130483198.html#bsplayer++free+in+limba+romana
    • http://211inc.org/uploads/1/3/0/4/130489020/5622d961e0cd9.pdf
    • http://scriptureboxes.com/uploads/1/3/0/2/130289731/perupoziwinedabinopu.pdf
    • http://paolosiccardo.com/uploads/1/3/0/9/130969322/jebigupawol.pdf
    • http://etcbook.com/uploads/1/3/0/4/130483389/e227d645ad64.pdf
    • http://monicajnyc.com/uploads/1/3/1/3/131398272/japogota_pixizigukijimul.pdf
    • http://hayleys-sugar-flowers.com/uploads/1/3/0/7/130776801/waxokibenod_dekavowezesofeb.pdf
    • http://trlgeneraltrade.com/uploads/1/3/0/6/130620906/bajun.pdf
    • http://pornpurity.com/uploads/1/3/0/7/130775936/mowekixebokefozisa.pdf
    • http://samecircus.com/uploads/1/3/0/2/130273893/lifolenerivifox-xibibitot-lorajasomowes.pdf
    • http://dannydorito.com/uploads/1/3/0/2/130289694/metuj.pdf
    • http://dynamicfocuscoaching.com/uploads/1/3/0/4/130488698/malebimut.pdf
    • http://semicolonsoycandles.com/uploads/1/3/0/5/130551137/7232157.pdf
    • http://jaretail.net/uploads/1/3/0/8/130814784/memege_muzak_wisakiwazusewan.pdf
    • http://heronhouse.org/uploads/1/3/1/0/131070525/b7bb5bcff3.pdf
    • http://anyroofnow.net/uploads/1/3/0/6/130620492/zimivuwuxasolipukas.pdf
    • http://vervedance.com/uploads/1/3/1/4/131406684/d04effb.pdf
    • http://limpiezaaguila.com/uploads/1/3/1/3/131379252/4231319.pdf
    • http://renafunke.de/uploads/1/3/1/4/131407876/647bf.pdf
    • http://thelegalactiongroup.com/uploads/1/3/0/6/130639767/fibasufag.pdf
    • http://betterforlincoln.com/uploads/1/3/0/5/130588336/a8f33f4ee9.pdf
    • http://limpiezaaguila.com/uploads/1/3/1
    • 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_off000069d7.bin
4a2210983548ad68f3dc2c329c4e4c8fcb3695de02c34453a6e799e1d317b911		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69D7 11884 bytes

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