Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1a4c3c752702342…

MALICIOUS

PDF

47.3 KB Created: 2020-08-13 15:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d3e286ad43ebde7598bf8f56d1cf082 SHA-1: 74d8e15b1789bc343df0264bf57b7463010dd985 SHA-256: a1a4c3c752702342f90de6c6871e39da10440ab60f65fd9427af9f335fb04152
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=ano+ang+tanggol+wika+pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious infrastructure. The document body, though heavily obfuscated, contains references to this URL and other URLs hosted on Shopify, suggesting a link farm or content-luring strategy. No scripts were extracted, limiting the analysis of direct payload execution.

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=ano+ang+tanggol+wika+pdf
    • http://files.stillkelly.com/uploads/1/3/1/6/131607163/gunetabarezuju_xuwif_guvido_mebasobose.pdf
    • http://files.writercassmichaels.com/uploads/1/3/2/6/132681295/5c425baa9.pdf
    • http://files.madisonandwhite.com/uploads/1/3/0/8/130813804/tedulinasipibesakaz.pdf
    • http://bokokuveg.buttfarm.co.uk/uploads/1/3/1/4/131408027/2926744.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/mario_benedetti_libro_la_tregua.pdf
    • https://cdn.shopify.com/s/files/1/0435/8035/8811/files/nezun.pdf
    • https://cdn.shopify.com/s/files/1/0435/5719/1843/files/beneficios_de_la_zanahoria.pdf
    • https://cdn.shopify.com/s/files/1/0438/0311/5682/files/acta_constitutiva_srl_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0432/8321/8588/files/bible_study_for_married_couples.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0643/files/23605194813.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30551251375.pdf
    • https://cdn.shopify.com/s/files/1/0435/2658/6532/files/81850914829.pdf
    • https://cdn.shopify.com/s/files/1/0435/2809/3856/files/wojipowemodevovogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/27022035326.pdf
    • https://cdn.shopify.com/s/files/1/0435/5211/2804/files/sesepimugenupafelijeluvu.pdf
    • https://cdn.shopify.com/s/files/1/0445/3256/4132/files/amazon_fba_course_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/83713467396.pdf
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/23581624964.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/nutrichef_sous_vide_manual.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_off0000695f.bin
c3c3f57027904ac3490aee8b17f59675b814b9251a0b8d2eb277c9ff4e90a796
pdf-font-stream PDF embedded font (sfnt) at offset 0x695F 5080 bytes
font_01_sfnt_off00007acb.bin
be38186c9256ba0e64b07d34cca2e63b176d3ffd182ae4667a642b503e748fe0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACB 6148 bytes
font_02_sfnt_off00008aab.bin
7375021947c058d72594070c89278fb8de9fae7b7636d08d3fa3db74d2a09e96
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAB 10920 bytes