Malicious PDF — malware analysis report

Static analysis result for SHA-256 b19f09756a29e40d…

MALICIOUS

PDF

63.8 KB Created: 2020-08-24 06:25:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5163d05d6aaa5e3cb5937a97d3edbb22 SHA-1: 1f9c7b2c8df95a1fe06d30773b3b94ab834cd9a2 SHA-256: b19f09756a29e40d0ba2cc5da42a83c40c1ad9e1b582f73187f4efb89ad4050e
148 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one pointing to a known malicious redirector (ttraff.com). The document body also contains a call-to-action phrase and a phone number lure, consistent with callback phishing or tech-support scams. The presence of numerous external PDF links suggests a link farm for SEO manipulation or to obscure the ultimate destination. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=cisco+webex+dx80+ordering+guide
    • http://files.drlendevilliers.com/uploads/1/3/1/4/131483009/4012629.pdf
    • http://files.beachartstudio.org/uploads/1/3/0/7/130776089/6850631.pdf
    • http://vidofut.pathwaycounselingofva.net/uploads/1/3/1/4/131453870/1c8b12f.pdf
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/8621750284.pdf
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/75131045697.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/gamokot.pdf
    • https://cdn.shopify.com/s/files/1/0436/4114/3454/files/navy_seals_fitness.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9837/files/65967948218.pdf
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/examens_regionaux_la_boite_a_merveilles.pdf
    • https://cdn.shopify.com/s/files/1/0433/6739/9575/files/list_of_all_countries_in_the_world.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/32943100392.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/87166942277.pdf
    • https://cdn.shopify.com/s/files/1/0433/8047/4014/files/18690378166.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_off0000b01d.bin
32058c27e01619367e210d6daabd4a654657d59acf7c98b81997800bfa0e5bc3
pdf-font-stream PDF embedded font (sfnt) at offset 0xB01D 5404 bytes
font_01_sfnt_off0000c29d.bin
577761fb6b389ecdee1581c7c10b225e938d630a33854cf2f7340baf24a6975b
pdf-font-stream PDF embedded font (sfnt) at offset 0xC29D 14980 bytes