Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfbaa68e43fd0503…

MALICIOUS

PDF

38.9 KB Created: 2020-08-25 05:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8410622b952649f38680c71a02641231 SHA-1: 1a259321bcc0b555eea47fceab1207ceebd16896 SHA-256: bfbaa68e43fd05032a261089603cf55e8228e1f7a390a0c894845e587b980269
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=dark+souls+1+parry+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being to a Shopify domain. The document body, though partially garbled, contains the same redirector URL, suggesting the document's primary purpose is to drive traffic to this malicious site, likely for phishing or malware delivery.

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.com/pify?keyword=dark+souls+1+parry+guide
    • http://magazo.jvcai.org/uploads/1/3/1/4/131438500/f948f638.pdf
    • https://cdn.shopify.com/s/files/1/0428/2341/8019/files/danedanadiwapizemepegare.pdf
    • https://cdn.shopify.com/s/files/1/0432/8508/6374/files/23492493507.pdf
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/12527743893.pdf
    • https://cdn.shopify.com/s/files/1/0432/2649/7182/files/arkitektura_e_kompjuterit.pdf
    • https://cdn.shopify.com/s/files/1/0432/5241/6672/files/72_demons_of_goetia.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/jivurazowisi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/lufufokupilivibamulunofan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0471/4404/files/asphalt_8_hack_2019_android.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/lubixonibumixox.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/mopibawiwutufe.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_off00005a2d.bin
9fc62b903e5be6d80d1fbdbacbf7c6b9b61e4a4f1fe9687b3c06c7e66a8b8eb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2D 5344 bytes
font_01_sfnt_off00006c83.bin
40f012b730ec480f33b9904f1cb081b24d5bb4221e1501ac47494ad138007e99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C83 10152 bytes

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