Malicious PDF — malware analysis report

Static analysis result for SHA-256 8584f79d681a34ab…

MALICIOUS

PDF

73.1 KB Created: 2020-08-06 19:29:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e68054074f162366c8eea4dccf7685aa SHA-1: 46473b1fed310f3516159a5f86b47acfdcd99829 SHA-256: 8584f79d681a34ab61ccea0b094b69371ff37844ba0e1d56d851fccd206cd9cc
154 Risk Score

Malware Insights

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

The PDF contains a deceptive document body referencing the 'Cantonment act 1924 pakistan pdf download' to trick users into clicking embedded links. One of these links, 'https://ttraff.cc/pify?keyword=cantonment+act+1924+pakistan+pdf+download', points to a known malicious redirector. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or malware distribution scheme.

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=cantonment+act+1924+pakistan+pdf+download
    • http://lorame.threadscorpuschristi.com/uploads/1/3/0/9/130969352/47eb2ac3.pdf
    • http://files.trevorlakecomputers.com/uploads/1/3/0/8/130813301/6628816.pdf
    • http://files.en.yvesalizahno.com/uploads/1/3/1/4/131437689/sopotesikadebi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/jafabofimukevetenoluguxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1741436775.pdf
    • https://cdn.shopify.com/s/files/1/0432/4432/2978/files/dobumoluwigixibagij.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/woziki.pdf
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/61485853743.pdf
    • https://cdn.shopify.com/s/files/1/0431/5496/4631/files/53897748578.pdf
    • https://cdn.shopify.com/s/files/1/0438/1209/4109/files/pigezadobetutuxojiwepolef.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/max_payne_3_trainer.pdf
    • https://cdn.shopify.com/s/files/1/0435/3445/0840/files/87903135531.pdf
    • https://cdn.shopify.com/s/files/1/0436/7797/4678/files/zakineputoza.pdf
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/79413666306.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6349/files/www_phir_mohabbat_com.pdf
    • https://cdn.shopify.com/s/files/1/0431/1675/7153/files/mamixawa.pdf
    • https://cdn.shopify.com/s/files/1/0436/4750/0448/files/piwifuvegeladaxekakuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/4133/3147/files/jivixugejutiziwugobil.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_off0000e0a7.bin
10a5d1aba46f6372d100fd796640d3f4acf2115bd2273b76b4a5f394677a076e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A7 5692 bytes
font_01_sfnt_off0000f41f.bin
ab52aa34ba9f1d1fbb30425832359195456c220c4a879f241b40b5ad1f5a6a87		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF41F 10144 bytes

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