Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c896955162fd26d…

MALICIOUS

PDF

44.7 KB Created: 2020-08-05 09:48:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57e99f10616f106fbb48644ff3771e79 SHA-1: 033093139f5f62f46a7ca9350857fb3cb6b1064d SHA-256: 0c896955162fd26de3323911b23c0829c7a3af927094d61e0a42c321b611647f
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The primary malicious link identified is https://ttraff.cc/pify?keyword=indesign+print+booklet+to+pdf+spreads, which likely leads to a malicious payload or phishing page. The document body itself is heavily obfuscated and contains what appears to be a reference to the malicious URL, suggesting the document's purpose is to drive traffic to this malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=indesign+print+booklet+to+pdf+spreads
    • http://files.conncollfilm.com/uploads/1/3/1/8/131871894/047a8d17fd.pdf
    • http://files.staceyhernberg.com/uploads/1/3/1/1/131163507/38d4d55f07a.pdf
    • http://files.jjeffreymesserole.com/uploads/1/3/1/3/131384018/f3faf9c41e.pdf
    • http://fofevim.georgipetroff.com/uploads/1/3/0/7/130775387/kalik-zojobuf-xasenibunerig.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/9575/1842/files/sowad.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/91927588240.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1031/files/90299776697.pdf
    • https://cdn.shopify.com/s/files/1/0432/4330/7175/files/application_of_functional_programming_languages.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/bixajavufowapudisem.pdf
    • https://cdn.shopify.com/s/files/1/0435/3789/1477/files/dudibugoxofowijawivev.pdf
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/audio_two_top_billin.pdf
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/us_cellular_rebate_center.pdf
    • https://cdn.shopify.com/s/files/1/0434/4007/9005/files/90948413227.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdf
    • https://cdn.shopify.com/s/files/1/0437/5589/6990/files/66186641322.pdf
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/77300439799.pdf
    • https://cdn.shopify.com/s/files/1/0430/2562/9347/files/predator_generator_8750_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/42967493993.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_off000071ab.bin
e105f2c5f7b88677d57e603e894fbae57534834c283e293fef9948102b40e16f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71AB 5352 bytes
font_01_sfnt_off000083e6.bin
357be482c64d777564b82c1a39e24270f552a20088f96374c7e804eb98f7bac7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83E6 9724 bytes

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