Malicious PDF — malware analysis report

Static analysis result for SHA-256 06a564a87741cdb9…

MALICIOUS

PDF

38.6 KB Created: 2020-08-19 19:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e25bef5afcb6e6387eebdc96ccf8457d SHA-1: 182ac0a1cf9b99f80b5c96ea6ec5fa24f744a48b SHA-256: 06a564a87741cdb9967c636750e2222b7c984c63f124b376380921142847dc0a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a malicious domain, disguised as an IKEA catalog. This is supported by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic and the embedded URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=ikea+catalog+2018+malaysia
    • http://files.islandqueenproductions.com/uploads/1/3/1/4/131453989/puxonimevewu_norun.pdf
    • http://files.mastertradesmen.co.uk/uploads/1/3/0/8/130874109/1d1bebc374a7612.pdf
    • http://files.norvacentre.com/uploads/1/3/0/7/130739043/reveganavujo-kojemez.pdf
    • http://tedaj.abiblo.com/uploads/1/3/0/7/130775734/pugiv-puwewidu-kewirenasas-sujewekowa.pdf
    • http://files.mariacamera-smith.com/uploads/1/3/1/4/131453248/jokipojidiret.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/6356/5718/files/borulepisinejaresekolo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/fidomu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9593/2574/files/abattoir_waste.pdf
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/79894326044.pdf
    • https://cdn.shopify.com/s/files/1/0430/7451/9194/files/xinimunawovuxumopo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3743/files/manufacturing_business_plan_sample.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/html_registration_form_design_templates.pdf
    • https://cdn.shopify.com/s/files/1/0454/2539/3832/files/brother_sewing_machine_lx3817a_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/zivegukas.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/jenos.pdf
    • https://cdn.shopify.com/s/files/1/0437/5085/0709/files/14822503812.pdf
    • https://cdn.shopify.com/s/files/1/0436/5323/4841/files/english_russian_dictionary_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4980/3166/files/rajusisev.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004baa.bin
8d257e593956c8b45f0f53b5848f5c3e8462c4d55659a6a9d1fc00502aa9fd46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BAA 5328 bytes
font_01_sfnt_off00005dd8.bin
21a08e63bff1c153c577cca227d699f743bc245a8b900c4b8aedd42839a8b644		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD8 9784 bytes
font_02_sfnt_off00007f5d.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5D 4324 bytes

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