Malicious PDF — malware analysis report

Static analysis result for SHA-256 afa72696930a87fb…

MALICIOUS

PDF

46.0 KB Created: 2020-08-06 21:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 845587c7fa534b4a4b27b6de7266167d SHA-1: a9f579adcbc4f1e83eb213e16cf3c0026617fbf3 SHA-256: afa72696930a87fb28fce3e7109f7cd88bb3626787aa05482ed45f398ac6ca59
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=caselet+di+pdf+for+ibps+po'. The presence of a 'download button' lure further supports a malicious intent to redirect users to potentially harmful content. 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=caselet+di+pdf+for+ibps+po
    • http://files.sierralovestowell.com/uploads/1/3/1/0/131071298/1f05af97.pdf
    • http://files.en.sensoryum.ca/uploads/1/3/0/7/130738998/653aa6cb2e.pdf
    • http://files.edmillersculpture.com/uploads/1/3/2/8/132814977/fb41eb6d9.pdf
    • http://duwukud.americanprayerforce.com/uploads/1/3/1/3/131379730/4355535.pdf
    • https://cdn.shopify.com/s/files/1/0435/7573/8527/files/33425398850.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8342/files/aaa_cooper_bol.pdf
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/54013795771.pdf
    • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/nejamidusibewogawalozan.pdf
    • https://cdn.shopify.com/s/files/1/0434/9794/7300/files/compreender_behaviorismo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/36180167728.pdf
    • https://cdn.shopify.com/s/files/1/0433/0435/3956/files/metodo_descriptivo_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/49874732071.pdf
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/dotomoxulisirijijep.pdf
    • https://cdn.shopify.com/s/files/1/0437/9426/8320/files/jifegisagabekupirejimis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006795.bin
51a64805502dea2f7876d11143453dc94d1800676630d079b44de8a6e12445d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6795 4880 bytes
font_01_sfnt_off00007837.bin
b2642d359530b80697ac37717266f5b62728885ca92721f4ff9e770bb79f1018
pdf-font-stream PDF embedded font (sfnt) at offset 0x7837 10840 bytes
font_02_sfnt_off00009cf6.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CF6 4324 bytes