Malicious PDF — malware analysis report

Static analysis result for SHA-256 392fa68f3ac10587…

MALICIOUS

PDF

32.6 KB Created: 2020-05-16 20:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79261268528c77dded308d35475c62d8 SHA-1: 85f9f1d44239c8613d9e38c29cffc01ac8ac2ae2 SHA-256: 392fa68f3ac10587b3da48e93e63f35d98bf6acdc24d91fb6227ea99df927d69
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The document body, though partially corrupted, contains text related to a 'Citroen c3 2003 repair manual' and references wkhtmltopdf, indicating a potential lure to trick users into visiting malicious URLs. The primary attack pattern involves directing users to external sites, likely for phishing or malware delivery.

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://vacaspa.com/uploads/1/3/0/2/130292089/130292089.html#citroen+c3+2003+repair+manual
    • http://karayancpa.com/uploads/1/3/0/5/130588257/kumusutajinisuberuj.pdf
    • http://hiddengemhair.com/uploads/1/3/0/4/130435751/sodaguwiba.pdf
    • http://southlondonparanormal.com/uploads/1/3/1/4/131453288/068d1ca.pdf
    • http://healingspace4u.com/uploads/1/3/0/5/130544625/pobefebuvuzune.pdf
    • http://reversemortgageinfocenter.net/uploads/1/3/0/7/130739688/0eaf1bd4.pdf
    • http://shmactopus.com/uploads/1/3/0/6/130639386/jefuzelo.pdf
    • http://bluehavencounseling.org/uploads/1/3/0/4/130436389/varibafajagogi.pdf
    • http://kidsenglishacademy.com/uploads/1/3/1/4/131406569/kodop-jeduburikupel-sogewekixis-rifonosurisik.pdf
    • http://adjustmentbureau.org/uploads/1/3/1/4/131483361/pebin.pdf
    • http://scoutinspectors.com/uploads/1/3/0/9/130970008/9825067.pdf
    • http://prepsensei.com/uploads/1/3/1/4/131453049/katozowosuje-tofuxapose.pdf
    • http://mapleshot.com/uploads/1/3/1/4/131413603/2d126a0cf.pdf
    • http://programmedlogisticsptyltd.com/uploads/1/3/0/6/130621401/lafaf-dejosowogifat-komubo.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_off0000564f.bin
18a068b0b8aa0b03fc9f6f894e61dc7c05c77d5701973456829fb49d5256f68d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x564F 9660 bytes

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