Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ba622cee0b6a604…

MALICIOUS

PDF

41.4 KB Created: 2020-08-24 22:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6074cb77a9f194be057ef809d070ff9f SHA-1: 95966313a7bedbb6d9c1ad9a4957cfae2fd7c745 SHA-256: 9ba622cee0b6a6049bc2fd540ea99bf9c48a74e348bedb839cebd9c6eb56c916
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily garbled, contains text related to software and a URL that mirrors the malicious redirector. This suggests a social engineering lure to trick users into downloading or visiting malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adobe+photoshop+7.+0+magic+pro+filter
    • http://files.ww.macpainter.com/uploads/1/3/1/0/131070469/b3f72d3271558.pdf
    • https://cdn.shopify.com/s/files/1/0450/3240/7198/files/jujerujemuruf.pdf
    • https://cdn.shopify.com/s/files/1/0444/3717/6487/files/xuramowuvifijarupi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/roland_barthes_mythologies_francais.pdf
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/69983795497.pdf
    • https://cdn.shopify.com/s/files/1/0437/5724/0478/files/pepigafof.pdf
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/32905137075.pdf
    • https://cdn.shopify.com/s/files/1/0438/0730/9984/files/tifizikarapi.pdf
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/23509962000.pdf
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/mixixoladifulegolive.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/29403620096.pdf
    • https://cdn.shopify.com/s/files/1/0439/4188/8158/files/probability_worksheets_8th_grade.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_off0000615a.bin
36d7865786e981c578396edf09036494dd277bb8041a11e068f523fee0e1f144		 pdf-font-stream PDF embedded font (sfnt) at offset 0x615A 5952 bytes
font_01_sfnt_off00007587.bin
b1137d9ab0750b28ee353ed4a47e663476e8b22f726a579cd5a27296c86ae122		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7587 10460 bytes

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