Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc10851fb060a763…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 14:00:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0b65f26891dcffc041a1ca524fca78a SHA-1: b6d81078803e8b57d9a0c1009eb8dee29f5a5330 SHA-256: bc10851fb060a7634db8fa50765d96a5de0df2710095ab55d9bc5ce22059e5de
150 Risk Score

Malware Insights

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

The PDF contains a prominent link to a malicious redirector, ttraff.cc, disguised with a keyword related to childbirth. This indicates a phishing or scam attempt. The document also functions as a link farm, embedding numerous external links, many hosted on cdn.shopify.com, which is a common tactic for SEO poisoning or distributing malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=accouchement+dystocique+pdf
    • http://jadip.missuzhart.com/uploads/1/3/1/4/131454373/kajekoke-tujegeti-zagipovaviwar.pdf
    • http://kupatugi.bayareaentertainer.com/uploads/1/3/1/4/131406686/3003099.pdf
    • http://rutojaxe.nohomoprod.com/uploads/1/3/1/3/131380005/binofejap.pdf
    • https://cdn.shopify.com/s/files/1/0440/7027/3174/files/farewell_speech_examples.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/53517687423.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/5893111517.pdf
    • https://cdn.shopify.com/s/files/1/0432/5883/9198/files/56053015137.pdf
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/zegijelebarifuxa.pdf
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/50121141356.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0430/files/43971229751.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/79112471165.pdf
    • https://cdn.shopify.com/s/files/1/0436/9684/9051/files/vejubowulafokidopasaxomix.pdf
    • https://cdn.shopify.com/s/files/1/0434/7058/6022/files/kazevapovasujerogekigaped.pdf
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/gifokozabizukumojinofe.pdf
    • https://cdn.shopify.com/s/files/1/0435/8461/8653/files/52607772199.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/xowekaguvawit.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.

FilenameKindSourceSize
font_00_sfnt_off00006859.bin
b991ad2699d20617aed69b0795481492b31628c917b73a398fb9a3422d6ef3dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6859 5272 bytes
font_01_sfnt_off00007a39.bin
9982a6a646379921aafad0985d04b6f865c06951ef3da48e7c1e47e5957c42da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A39 10480 bytes

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