Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a309d9d100d744e…

MALICIOUS

PDF

46.1 KB Created: 2020-08-25 07:50:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 428d3587240cb20fc6db17e1bd44c142 SHA-1: 72d564164495bf821982e611b269481a4b687a39 SHA-256: 1a309d9d100d744eae48a1ffc09ffea828c311bb99c0809c816a9588946a2769
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented to the user as a download for an 'Office 2016 timeline template'. The document also contains a large number of embedded links, many of which point to Shopify domains, likely as part of an SEO link farm to improve the ranking of the malicious redirector. No scripts were extracted from this sample.

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.com/pify?keyword=office+2016+timeline+template
    • http://files.parishoflongpointbay.com/uploads/1/3/0/9/130969403/fivefinowubavonin.pdf
    • http://files.carlsbaddesal.com/uploads/1/3/1/3/131383661/8416451.pdf
    • http://files.amazingchinainspection.com/uploads/1/3/1/6/131636689/zovoregewob_kopitejeseme_zezulubaxig.pdf
    • http://files.worldfashionmedianewsarchives.com/uploads/1/3/1/3/131379678/7336342.pdf
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdf
    • https://cdn.shopify.com/s/files/1/0429/8440/7199/files/harcourt_phonics_practice_book_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/citi_investment_research_reports.pdf
    • https://cdn.shopify.com/s/files/1/0448/2242/9858/files/civ_vi_steam_guides.pdf
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/7_days_to_die_mods_alpha_17.pdf
    • https://cdn.shopify.com/s/files/1/0431/6259/9584/files/94776887648.pdf
    • https://cdn.shopify.com/s/files/1/0429/3358/4035/files/kibugesubolubavozute.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
    • https://cdn.shopify.com/s/files/1/0462/2601/4362/files/fobolan.pdf
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/kizukututarivizabegu.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/adjectives_and_adverbs_list_with_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/zojupi.pdf
    • https://cdn.shopify.com/s/files/1/0454/7454/5816/files/65636418024.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/8154562352.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_off000077ce.bin
97839d7feabc4ddff80075cabb6d4ee37d49e68fe4295143fdc5a5ee1e2c90e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x77CE 5396 bytes
font_01_sfnt_off00008a19.bin
90820b6ee93ce07bc3e68e66b47081410b08150cdf86ee73495d57c61b162bdb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A19 9880 bytes