Malicious PDF — malware analysis report

Static analysis result for SHA-256 42db94de6d50010e…

MALICIOUS

PDF

36.8 KB Created: 2020-08-07 02:58:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ffd63a130ac2c6c9bc38fddd9f33ba0 SHA-1: 14fae302cd9aee8aaf62dae3fd95ac25c7536d60 SHA-256: 42db94de6d50010e8d89093292ae97f0df7912a98fe4d8c8825827f886f9ae5b
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious domain, ttraff.com. This suggests the document is designed to lure users to malicious infrastructure by disguising malicious links among seemingly legitimate ones. No scripts were extracted, and the document body was heavily obfuscated.

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=agroforestry+principles+and+practices+pdf
    • http://files.fnaq.org/uploads/1/3/1/4/131408364/3e2729.pdf
    • http://nowuw.seymourcoc.org/uploads/1/3/1/8/131856372/refogikufule-podibedu-kofizo.pdf
    • http://files.ententehome.com/uploads/1/3/0/7/130775647/2667810.pdf
    • http://files.hhupholstery.com/uploads/1/3/0/8/130813427/gufuxep-lokopojeku-nosomosome.pdf
    • http://files.ashleyparsonsyoga.com/uploads/1/3/2/7/132740415/newixebomufobezofawe.pdf
    • https://cdn.shopify.com/s/files/1/0435/7101/9935/files/68295742579.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/tusog.pdf
    • https://cdn.shopify.com/s/files/1/0434/2602/1527/files/mustang_skid_steer_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/mail_cumc_columbia_edu_owa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2729/2582/files/kibobesufi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/pegazeluz.pdf
    • https://cdn.shopify.com/s/files/1/0432/2987/2292/files/14980356015.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/wufenolutajevenakodogawu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5057/files/hypixel_discord_server.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/dojotafowabagetawekajame.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_off0000518e.bin
8498f1df7ea17fd839d736240cb0984dfac61d3825f4a329420018360f06baa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x518E 5416 bytes
font_01_sfnt_off0000641a.bin
a5b4d6bc6db53705f26d6b0ccb2c2b208387dd87375aa78038463d06b7e0326a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x641A 10024 bytes

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