Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f1befd291ccaab…

MALICIOUS

PDF

48.2 KB Created: 2020-07-29 15:34:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0636631637b855ad9d07accf3d63e7d7 SHA-1: 01506575ec9a92372c17e7c2c554a4dfe2de5dc2 SHA-256: 80f1befd291ccaab9c42f243bebed08948a0c88d6048a5443994f2f460b74b69
154 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with one URL pointing to known malicious infrastructure. The document body is heavily obfuscated, but the presence of embedded URLs and the PDF structure suggest an attempt to lure users to external sites. No scripts were extracted, but the overall pattern is consistent with phishing or spam campaigns.

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.com/pify?keyword=caldera+acuotubular+funcionamiento+pdf
    • http://files.beaconsfieldsynchro.ca/uploads/1/3/0/8/130874254/gujupizizuregivuma.pdf
    • http://files.allisoncamerongray.com/uploads/1/3/0/7/130776327/ec6ad.pdf
    • http://files.myersparkib.org/uploads/1/3/0/7/130739802/fokusipelez.pdf
    • http://files.littleriverbc.org/uploads/1/3/0/8/130873779/robetafepepevar-fixolan-tilepix.pdf
    • http://files.hocorespond.com/uploads/1/3/0/7/130775892/tebileresakul_muvuvakuxidi_vawivenegegux_nibigo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/22545978586.pdf
    • https://cdn.shopify.com/s/files/1/0427/4431/6070/files/31480142687.pdf
    • https://cdn.shopify.com/s/files/1/0429/0448/6055/files/497462231.pdf
    • https://cdn.shopify.com/s/files/1/0438/5302/1334/files/17846863872.pdf
    • https://cdn.shopify.com/s/files/1/0434/9768/5157/files/loselijaj.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/30795512813.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/vulakegajeli.pdf
    • https://cdn.shopify.com/s/files/1/0436/6660/4182/files/puzotibilaro.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdf
    • https://cdn.shopify.com/s/files/1/0434/8212/0358/files/5785525340.pdf
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/44787839791.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/26242247307.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_off00007bf1.bin
41439534ba62e6ce2c4e6fa7aae77157a397a2d72efdf3c5b5a6b2f4516a5ba8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF1 5168 bytes
font_01_sfnt_off00008d62.bin
3469579134c814d49bf24c2af64769a8455444e937b4a08fbfaaa580a1657d03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D62 10944 bytes

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