Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d56362c9e29a8d…

MALICIOUS

PDF

67.0 KB Created: 2020-08-17 13:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97cbe30bf5ba2f5a3349436ffbde4d63 SHA-1: 014777587dc55c81d42bc4c8f894eb1b171fa219 SHA-256: 49d56362c9e29a8d1c2671b643e4a8677f2bbad60564f64c9221b965d9aa254c
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=a+aa+south+movie++in+hd'. This indicates a phishing or scam attempt, likely using SEO link farming techniques to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=a+aa+south+movie++in+hd
    • http://files.harttravelguides.com/uploads/1/3/1/0/131071137/xubepimakigi-jesusuz.pdf
    • http://siworobub.breckinridgecountyfair.com/uploads/1/3/1/4/131483068/3251483.pdf
    • http://nalovuxop.creepettaway.com/uploads/1/3/2/6/132696147/wepitaj-lekewikiworup-pifagavix-tumuje.pdf
    • http://files.urbleshannysciencelog.com/uploads/1/3/1/3/131384777/zajopitabagajuwuso.pdf
    • http://files.stopdemonicencounters.com/uploads/1/3/1/4/131407459/8200589.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/tiposovipisera.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/tijudumilexuvelimoteti.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/scala_future_sequence.pdf
    • https://cdn.shopify.com/s/files/1/0432/0300/2523/files/vevaxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7450/files/convenios_de_ginebra_1949.pdf
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/99669439992.pdf
    • https://cdn.shopify.com/s/files/1/0438/3562/1526/files/markup_on_surface_pro_3.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/83327874534.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7405/files/65775651417.pdf
    • https://cdn.shopify.com/s/files/1/0434/2631/6455/files/cetoacidosis_diabetica_signos_y_sintomas.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1074/files/tewobopatedapu.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_off0000b3db.bin
21685066b7dd3827b6b17929e73a1ef97cbaa74ab42ad428b7ceaa8e69c93b93
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3DB 4988 bytes
font_01_sfnt_off0000c4b0.bin
29ae3ba7b11d5d47a154ccbbcd1c223c090336486064dc276ba2d858c779fea3
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B0 10892 bytes
font_02_sfnt_off0000e9c7.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C7 16164 bytes