Malicious PDF — malware analysis report

Static analysis result for SHA-256 79390132cc0f48e7…

MALICIOUS

PDF

39.2 KB Created: 2020-04-01 14:30:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2099d8c5dc8964f8e4593294d2543e28 SHA-1: 3a01d4c7cc46f716bb891ecb38c3d2ede69a70be SHA-256: 79390132cc0f48e7683fbc1cf6650fa73d1ebf9eb8f1756ef09e3d17ff223289
72 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to PDF files on various domains, indicating a link farm or SEO poisoning tactic. The document body, though heavily corrupted, contains a URL related to 'pokemon cloud white free download for android', suggesting a lure for users seeking free software. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the idea that the document is designed to trick users into clicking malicious links. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • 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://grillou.fr/uploads/1/3/0/4/130476237/130476237.html#pokemon+cloud+white+free+download+for+android
    • http://volunteerarmamentdepot.com/uploads/1/3/0/5/130540402/wijexe-dizevisajorid-jorazanigedijas.pdf
    • http://jerremy.net/uploads/1/3/1/4/131437766/zabejad.pdf
    • http://wvbetter.com/uploads/1/3/0/6/130605432/9891e7fc7609221.pdf
    • http://beepkg.com/uploads/1/3/0/3/130323908/8f366ad37.pdf
    • http://cmbtp.org/uploads/1/3/1/1/131163718/ab367ae2145a08c.pdf
    • http://frederickhglloyd.com/uploads/1/3/0/8/130814715/simatinov.pdf
    • http://mercury-systems.com/uploads/1/3/0/3/130379804/pavisumobe.pdf
    • http://redredroseband.com/uploads/1/3/0/8/130873915/povimuvopalaxim.pdf
    • http://puresonification.com/uploads/1/3/0/5/130539928/842962.pdf
    • http://carolynsandstrom.com/uploads/1/3/0/4/130489377/guzepu-kidefox-wuwatiwo-satonofiz.pdf
    • http://tkkinvestments.com/uploads/1/3/0/5/130590082/foxug_nanede_kukubumiv_wikufod.pdf
    • http://cycle4lifebw.com/uploads/1/3/0/3/130379082/2923231.pdf
    • http://81navywharf.com/uploads/1/3/1/1/131163986/b906553d38e7678.pdf
    • http://aimrecreationtherapy.com/uploads/1/3/0/8/130813798/kinikarabiju-gajotofito-lutob-betilolav.pdf
    • http://tulsaeats.com/uploads/1/3/0/4/130476013/f9a8c7d0ea73.pdf
    • http://coolascoldroomsandpatios.com/uploads/1/3/0/2/130271103/merekapixapuja.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_off00006ee4.bin
40120a798f4c365ea1a39ec2cab7c883fa285fb29634b1aaa155df267f5851a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE4 8552 bytes

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