PDF malware analysis — malicious · a5c1fb18c1aee44e

MALICIOUS

PDF

46.7 KB Created: 2020-08-07 08:18:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7244c7da04985940b3107d92b5ab542a SHA-1: 6f9786844c034f92545a2222794432c589e167af SHA-256: a5c1fb18c1aee44e4d12581a65fe02618cefa0521c5cc38aa591e1d912e20941

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body text, though partially corrupted, mentions 'Convert pdf to word desktop software for pc registration key', reinforcing the lure. The primary malicious URL is https://ttraff.ru/pify?keyword=convert+pdf+to+word+desktop+software+for+pc+registration+key, which is flagged as a malicious redirector.

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.ru/pify?keyword=convert+pdf+to+word+desktop+software+for+pc+registration+key
- http://files.365transportation.com/uploads/1/3/1/4/131406520/9a3a9d816f7e.pdf
- http://files.churchbestpractices.org/uploads/1/3/1/4/131437085/zakepexur.pdf
- http://files.threadpaint.com/uploads/1/3/0/8/130874422/2128282.pdf
- http://zozuragow.bluecloverrabbitry.com/uploads/1/3/0/8/130814229/vipogupisofiritave.pdf
- http://files.annscleaningllc.com/uploads/1/3/1/4/131406751/winotaginuji.pdf
- https://cdn.shopify.com/s/files/1/0429/3525/5203/files/21497728770.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdf
- https://cdn.shopify.com/s/files/1/0432/5743/0176/files/waxelevaj.pdf
- https://cdn.shopify.com/s/files/1/0435/5312/8612/files/81601086080.pdf
- https://cdn.shopify.com/s/files/1/0435/4280/6680/files/84178942508.pdf
- https://cdn.shopify.com/s/files/1/0428/4815/7859/files/purigijozexuvarisuwikig.pdf
- https://cdn.shopify.com/s/files/1/0437/4816/3738/files/70942742673.pdf
- https://cdn.shopify.com/s/files/1/0431/8799/4792/files/76496758254.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/37067640802.pdf
- https://cdn.shopify.com/s/files/1/0433/1601/9355/files/30933780289.pdf
- https://cdn.shopify.com/s/files/1/0430/2897/1681/files/81762297253.pdf
- https://cdn.shopify.com/s/files/1/0428/1637/2892/files/25998474360.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sikotifukiv.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_off00007373.bin` `b602be2b348ae20e142015071c900ba1c4b9eacb61824d97b2ba353ff41a99a3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7373	5512 bytes
`font_01_sfnt_off00008663.bin` `b2d05f72653e07cded3b7fde7d9a6a7fbb25692ee70200058ca2e5c784f41060`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8663	11592 bytes

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