PDF malware analysis — malicious · ad39f749f53353c5

MALICIOUS

PDF

63.2 KB Created: 2020-07-20 20:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 85adefd1032f0deed915a8c166a8c2d6 SHA-1: c2d88e74feeddb5b9d5fb25fa631022faec90d16 SHA-256: ad39f749f53353c53e129508a3dc5b28e173a92108cd617a79044ef181c02a8b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external websites. One critical heuristic indicates a malicious redirector link, and another identifies a PDF link farm. The document body, though heavily obfuscated, contains text related to 'resume templates', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware-hosting site.

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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 https://ttraff.cc/wb?keyword=best%20free%20resume%20templates%20pdf
- http://files.birthandmotherearth.com/uploads/1/3/0/9/130969507/3249177.pdf
- http://files.ravenlandrecords.com/uploads/1/3/1/3/131379113/5767170.pdf
- http://files.sitesofpassage.org/uploads/1/3/1/0/131071240/455213.pdf
- http://files.drltwm.org/uploads/1/3/1/8/131872048/5131056.pdf
- http://files.autismovercomers.com/uploads/1/3/1/4/131437538/begadexiza.pdf
- https://cdn.shopify.com/s/files/1/0430/7841/8583/files/rizavaputukixolusu.pdf
- https://cdn.shopify.com/s/files/1/0435/4513/3207/files/96943898110.pdf
- https://cdn.shopify.com/s/files/1/0431/9051/7917/files/xakoku.pdf
- https://texinodus.files.wordpress.com/2020/06/42390630800.pdf
- https://xalofupoz.files.wordpress.com/2020/06/9959388627.pdf
- https://jiderawutuk.files.wordpress.com/2020/06/koxidivenajavo.pdf
- https://lebetamawif.files.wordpress.com/2020/07/fevepuxofij.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22650439267.pdf
- https://cdn.shopify.com/s/files/1/0432/0509/9675/files/jilezewudobolukajijetuxoj.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdf
- https://cdn.shopify.com/s/files/1/0432/7538/7043/files/78235250840.pdf
- https://cdn.shopify.com/s/files/1/0427/8580/0358/files/39438168924.pdf
- https://cdn.shopify.com/s/files/1/0431/2537/5130/files/71042935208.pdf
- https://cdn.shopify.com/s/files/1/0429/6779/3817/files/69817066019.pdf
- https://cdn.shopify.com/s/files/1/0430/6147/7527/files/zikarurumufalixavi.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ba53.bin` `6bd9578c9bfc597ee0ee8169d8969a4e2e26e6801a596bde258e9d13c97e084d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBA53	4856 bytes
`font_01_sfnt_off0000cad2.bin` `222301dbe6ce9bcfdaae8faae0e4014cf509566a8e80ae3d49d04b22f889e44a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCAD2	10620 bytes

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