Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2cc036bdd93e3b7…

MALICIOUS

PDF

38.7 KB Created: 2020-08-23 09:19:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5364b832c7e808f6d22afff83cce8198 SHA-1: 6bd3d943a8e41c8eebab035198dd88b4578b069e SHA-256: e2cc036bdd93e3b761f5604f1de9b8c62c59dea5ffc8a7023c3b0ae746c90998
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=oxford+thesaurus+apk+full'. This URL is likely part of a phishing or malware distribution scheme. The document also contains a PDF link farm heuristic, indicating an attempt to manipulate search engine results or distribute content widely. The presence of multiple Shopify URLs, while some are confirmed benign, suggests a pattern of using legitimate platforms for hosting or redirecting to malicious content.

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=oxford+thesaurus+apk+full
    • http://debepavo.coloradocattlewomen.com/uploads/1/3/1/4/131454065/385e4.pdf
    • http://files.nsrec.com/uploads/1/3/1/8/131871518/besewitagavajumuku.pdf
    • http://kugivivog.ritecookware.com/uploads/1/3/1/4/131453960/f43badd.pdf
    • http://files.janetmancini.net/uploads/1/3/0/8/130813357/polok.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/cornell_critical_thinking_test_level_z.pdf
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/fundamentals_of_vibrations_meirovitch.pdf
    • https://cdn.shopify.com/s/files/1/0437/6628/4446/files/29435126920.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0392/files/62708287776.pdf
    • https://cdn.shopify.com/s/files/1/0430/6852/2657/files/food_and_beverage_cost_control.pdf
    • https://cdn.shopify.com/s/files/1/0433/2224/5273/files/84036609193.pdf
    • https://cdn.shopify.com/s/files/1/0439/1701/7256/files/22855601748.pdf
    • https://cdn.shopify.com/s/files/1/0463/6537/6673/files/90837897313.pdf
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/ventral_hernia_patient_education.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_off000058b8.bin
23deaa219750c11eddbaf19736c34e8aa6514207fdd19710d7e494f92729f8c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x58B8 5288 bytes
font_01_sfnt_off00006ab6.bin
45ec232faaaf9585e480d6a57ba1758ac3ffcfcd2552a215a4a67b45c062e7e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB6 10404 bytes