Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5c55f08e9d4dc8…

MALICIOUS

PDF

36.5 KB Created: 2020-10-12 00:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 8ebe8317aa549608e7693ddee62a6c37 SHA-1: 2351facf4d794e78e6075788a286ab50258c0193 SHA-256: 2e5c55f08e9d4dc82c652b21b3af1cd93183f457743265870773d16e4148448e
124 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL https://cctraff.ru/pify?keyword=101+weapons+of+spiritual+warfare, which is also listed as a malicious redirector. This suggests the document is designed to lure users to a malicious site, likely for further exploitation or phishing.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cctraff.ru/pify?keyword=101+weapons+of+spiritual+warfare In PDF document text
    • https://site-1038477.mozfiles.com/files/1038477/verumabisegutasaso.pdfIn PDF document text
    • https://site-1039748.mozfiles.com/files/1039748/82935254245.pdfIn PDF document text
    • https://site-1037858.mozfiles.com/files/1037858/fuwasivoboxu.pdfIn PDF document text
    • https://site-1039878.mozfiles.com/files/1039878/pamubojozufogu.pdfIn PDF document text
    • https://site-1038699.mozfiles.com/files/1038699/momusexukuzeroze.pdfIn PDF document text
    • https://site-1042448.mozfiles.com/files/1042448/40208706328.pdfIn PDF document text
    • https://site-1038561.mozfiles.com/files/1038561/86096654468.pdfIn PDF document text
    • https://site-1036985.mozfiles.com/files/1036985/70798299977.pdfIn PDF document text
    • https://site-1036742.mozfiles.com/files/1036742/81002761230.pdfIn PDF document text
    • http://files.metroholik-studio.com/uploads/1/3/1/3/131380177/7186213.pdfIn PDF document text
    • http://desozu.cobaltstrings.com/uploads/1/3/0/8/130813934/vubimuvoruwaxu.pdfIn PDF document text
    • http://kixetiv.keironshoot.com/uploads/1/3/1/4/131437603/271f54fe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5376/8090/files/human_behavior_james_tillman_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/4755/8561/files/definitely_maybe_ryan_reynolds_headphones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0771/1653/files/nttp_3_07.2_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0050/6785/files/twilight_forest_wiki_bosses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7643/9198/files/15859058968.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000519a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x519A 5088 bytes
SHA-256: 73b434a6db3baed42a9b3404247fd180603c581ddc125b4b026209b7e79f7a3d
font_01_sfnt_off000062fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FE 10028 bytes
SHA-256: cfd8b26725d7029d49ea998edec1666e69320686643982fdf63a51cbf99d02e7

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