Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ed8dd6b3354b10…

MALICIOUS

PDF

45.4 KB Created: 2020-08-11 07:21:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d385b27f0b54fcca857ea2ebe8491ede SHA-1: b05889b85e55cc347c14b7630ee3ea122486124a SHA-256: 82ed8dd6b3354b10524dddef9d81ed7ec2c5de49193e6078f99b7f74887af4c7
154 Risk Score

Malware Insights

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

This PDF document contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure related to medical guidelines, likely intended to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.

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=surviving+sepsis+campaign+guidelines+pdf
    • http://files.midpacificowlrobotics.com/uploads/1/3/1/4/131454373/7625064.pdf
    • http://files.genegousiecoaching.com/uploads/1/3/1/0/131070911/zuwas-jizunegatiguke.pdf
    • http://files.visionandvisionloss.org/uploads/1/3/0/8/130813985/3093400.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/1813/3405/files/antiarrhythmic_drugs_a_practical_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/3ds_max_tutorials_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/tekkit_servers_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/historia_clinica_nutricional.pdf
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/lufuxulavunananagebif.pdf
    • https://cdn.shopify.com/s/files/1/0428/1879/7724/files/famous_scientist_and_their_inventions.pdf
    • https://cdn.shopify.com/s/files/1/0435/3903/8360/files/tedep.pdf
    • https://cdn.shopify.com/s/files/1/0433/9689/0785/files/89844728771.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/62387083282.pdf
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/anastasius_bibliothecarius.pdf
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/tewewened.pdf
    • https://cdn.shopify.com/s/files/1/0430/4555/2277/files/fakazenele.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/gofubiditufatebadu.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_off0000736e.bin
55d03cac6060d1c4a13944234d34a3f33d8cd58c1c5165aeda870453815dbbe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x736E 5636 bytes
font_01_sfnt_off00008687.bin
78f007307e2944e3f1459fbcfba94d996aed1ecb9446f593d353afddb6cd8758		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8687 9936 bytes

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