Malicious PDF — malware analysis report

Static analysis result for SHA-256 0466b04798692afe…

MALICIOUS

PDF

41.7 KB Created: 2020-08-24 02:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fff8fe31eeb5acb71aa7720363dc60dd SHA-1: 1a5dda98f43bd9ea65eee80aa85c1ddd2d717552 SHA-256: 0466b04798692afe9db99681a981f012ae80a3bbbe94e47adad2815b0703c4ad
154 Risk Score

Malware Insights

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

This PDF document contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body and embedded link objects contain numerous URLs, with the primary malicious URL being https://ttraff.ru/pify?keyword=wildfire+syml+piano+sheet+music. This suggests the document's purpose is to redirect users to malicious sites, likely for phishing or malware distribution, aligning with the Spearphishing Attachment technique.

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.ru/pify?keyword=wildfire+syml+piano+sheet+music
    • http://wadoda.wellnessunderground.net/uploads/1/3/1/6/131606263/sibikikonasilupejula.pdf
    • http://files.ashlandaccess.com/uploads/1/3/0/8/130813913/pilolujufowi_fobuxaxudel_rozinikutemise_xuremuduwa.pdf
    • http://files.ibew23.org/uploads/1/3/2/6/132681336/6457202.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0435/4624/7332/files/91124586636.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/nabaxamupala.pdf
    • https://cdn.shopify.com/s/files/1/0437/7437/8138/files/ages_and_stages_3_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0437/6238/5045/files/rorewan.pdf
    • https://cdn.shopify.com/s/files/1/0449/4046/0200/files/android_or_ios_security.pdf
    • https://cdn.shopify.com/s/files/1/0435/3458/1911/files/depufogekokuposukupud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62386903812.pdf
    • https://cdn.shopify.com/s/files/1/0427/6781/0726/files/beketibekoripozenudubileb.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004afd.bin
76a118ca0c138345b2816b93bfbf4a8b1296255b1af2abf38367e39cdb0a1337
pdf-font-stream PDF embedded font (sfnt) at offset 0x4AFD 5392 bytes
font_01_sfnt_off00005d2c.bin
60ce9c6a0f8c49ca08c32668fa67fe6d4a4bdddafdaba40e427f0ea0f4a8b6ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2C 15168 bytes
font_02_sfnt_off00008c1e.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1E 4324 bytes