Malicious PDF — malware analysis report

Static analysis result for SHA-256 077a732d9232a540…

MALICIOUS

PDF

41.0 KB Created: 2020-08-10 03:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 550ba632c6857cae9b5209bcd9acaefb SHA-1: bf0bdb9cce7a2b75bd12fdb4ebf4b42d8e6a17e3 SHA-256: 077a732d9232a540709a0f73de2c8355358f90e6c11dfdebe267c786789fbf5e
154 Risk Score

Malware Insights

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

The PDF contains numerous links, with one identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=broiler+production+management+pdf'. This suggests the document is designed to lead users to malicious content, likely for phishing or malware delivery. 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=broiler+production+management+pdf
    • http://files.bvdrides.com/uploads/1/3/0/9/130969080/resijeped.pdf
    • http://files.compliancecurrent.com/uploads/1/3/2/6/132683017/bapibazuruxukis.pdf
    • http://files.rebeljfarms.com/uploads/1/3/1/4/131438299/pevixitome.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/7184/8100/files/50900600977.pdf
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/sahih_muslim_hadith_in_bangla.pdf
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/23971508624.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/sidipewuvipizurodumunuvu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/xazidaponor.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/2000/files/denatejuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1512/files/43402957010.pdf
    • https://cdn.shopify.com/s/files/1/0431/2144/2977/files/3973309360.pdf
    • https://cdn.shopify.com/s/files/1/0436/7125/7241/files/speak_your_mind_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/11353459396.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_off00006293.bin
e96f61b74cd95a734f21aaaa67f70bb80bba9d80f5c2f66e6a271f94d05f359e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6293 5344 bytes
font_01_sfnt_off000074b0.bin
158d6abf885f6b4bade9682258c7baba97469b599de09e6233dc6064df8821e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x74B0 9948 bytes