Malicious PDF — malware analysis report

Static analysis result for SHA-256 6478357384de4417…

MALICIOUS

PDF

41.5 KB Created: 2020-08-01 15:16:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df5b890c210576fb548337f4701504e0 SHA-1: c736396c909738788b83c9f8592f4de03405cc8f SHA-256: 6478357384de4417707d971ba2ac500cad1ccca1d96b110824012ab3b2b907ea
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, indicative of a link farm or SEO spam campaign. One prominent link, 'https://ttraff.ru/pify?keyword=totaljerkface.+com+happy+wheels', is flagged as a malicious redirector. The document body also contains this URL, suggesting it's the primary lure. The presence of numerous links and a malicious redirector points towards an attempt to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=totaljerkface.+com+happy+wheels
    • http://files.happytailsdogrescue.org/uploads/1/3/0/9/130969899/maremure.pdf
    • http://files.nadafaris.com/uploads/1/3/1/6/131606392/b7abb672ab.pdf
    • http://files.graceadvisors.net/uploads/1/3/1/4/131483027/861982.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/wezemud.pdf
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/kapov.pdf
    • https://cdn.shopify.com/s/files/1/0437/1388/8405/files/jegunevudovovidixusoderas.pdf
    • https://cdn.shopify.com/s/files/1/0435/9746/3714/files/jegodasunamoxorixaguda.pdf
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/siwevidusidufun.pdf
    • https://cdn.shopify.com/s/files/1/0431/6725/2641/files/72882809823.pdf
    • https://cdn.shopify.com/s/files/1/0433/7762/3194/files/wivibulez.pdf
    • https://cdn.shopify.com/s/files/1/0433/7660/7390/files/power_106_phone_number.pdf
    • https://cdn.shopify.com/s/files/1/0433/7352/7203/files/gw2_gold_farming.pdf
    • https://cdn.shopify.com/s/files/1/0436/1089/8595/files/73107540054.pdf
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/fosizunalivovije.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006288.bin
97bd1abaab466cb88d0601fa0187e5be33c4291d1ceadd75de08da380752e28b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6288 5572 bytes
font_01_sfnt_off00007573.bin
e3b76b1ae73203ae03a6781a9e98be6c0d69c090c2ab6a01a6d7ca3025edb2c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7573 10412 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.