Malicious PDF — malware analysis report

Static analysis result for SHA-256 d372cb47fad11879…

MALICIOUS

PDF

46.8 KB Created: 2020-07-25 15:08:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abb38ca39ceceef60121bd97b08dead8 SHA-1: dbc25df663536046be83f3f3f8e497634316d7f8 SHA-256: d372cb47fad11879f6612c23b8019efdf56c43114cd7a98a9eb1e72bba86655f
150 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'. The document body, though heavily obfuscated, appears to reference the '19th annual edelman trust barometer global report', suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or redirection strategy. No scripts were extracted from this sample.

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.com/pify?keyword=19th+annual+edelman+trust+barometer+global+report
    • http://files.campyellowdog.ca/uploads/1/3/0/8/130874585/biduse.pdf
    • http://files.lucretiabinghamramblings.com/uploads/1/3/1/6/131606115/e39eae20.pdf
    • http://files.joyfulsoundchoir.org/uploads/1/3/1/3/131398377/09ba6a.pdf
    • http://files.claretherese.com/uploads/1/3/1/4/131453283/fasaper_labofuve_zuvojofema_ribalegefamevil.pdf
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/77668017815.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/9652399929.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9813/files/85241683546.pdf
    • https://cdn.shopify.com/s/files/1/0431/8530/7808/files/62688134969.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowelikuzamutaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/8962/4224/files/zegumoroxebiwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/kilusisoxejo.pdf
    • https://cdn.shopify.com/s/files/1/0441/2493/0200/files/wubasewu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6038/8252/files/tezulogiresanorexuketine.pdf
    • https://cdn.shopify.com/s/files/1/0433/4315/1272/files/fezexavazaxajoji.pdf
    • https://cdn.shopify.com/s/files/1/0432/4248/7972/files/lafalobogamepegubowad.pdf
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/xesimapufivinolowaze.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/61868559728.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/
    • https://cdn.shopify.com/s/files/1/0433/5733/9813/files/85241

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007807.bin
dac1a7d2c434d5a8ca94b4d49d90f373fc22452d3dfeb9441f01813d40fd6b3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7807 5460 bytes
font_01_sfnt_off00008a58.bin
167e46124f37df0144f0b7618cacbb2e2ef9a4fcc784cf55a477ee2f349031a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A58 10364 bytes