Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae84c3e32e12bc5…

MALICIOUS

PDF

59.8 KB Created: 2020-10-19 08:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c79c0b564eb4c13fecaf33db72ec294e SHA-1: a7850b41b5a6dbbdb64534f6d072f1a175b8b907 SHA-256: eae84c3e32e12bc569499a9dd40d0cf17cbd07639c8cad0944f322875222f026
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to disposable hosting or known redirector infrastructure. The primary link, 'https://ggtraff.ru/123?keyword=physics+dictionary+urdu+pdf', is identified as a malicious redirector. The document's structure and content suggest it is designed to act as a link farm, likely to drive traffic to malicious sites or engage in SEO manipulation for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • 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://ggtraff.ru/123?keyword=physics+dictionary+urdu+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374540/normal_5f89f921926dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378834/normal_5f8a2657876cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367914/normal_5f896e4d7779b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f87300e82600.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/jexatuvugo.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/bawap.pdfIn PDF document text
    • https://kuvofexe.weebly.com/uploads/1/3/1/1/131163751/3cbaacddc3406.pdfIn PDF document text
    • https://nepufetok.weebly.com/uploads/1/3/1/4/131438640/a2fe9.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/ead64c6e.pdfIn PDF document text
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/646235.pdfIn PDF document text
    • https://wuvirinofibugiz.weebly.com/uploads/1/3/1/0/131070402/dibaxona_pokedukufufi_zafufed.pdfIn PDF document text
    • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/8b2e5e74.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3808383.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/tavurufida_sopelavude_kivetofavixagox_piwoxojukuzifo.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fibaxizimudez.pdfIn PDF document text
    • https://gonoloxezejuje.weebly.com/uploads/1/3/1/4/131410007/9026572.pdfIn PDF document text
    • https://purolejomi.weebly.com/uploads/1/3/0/7/130776639/9863192.pdfIn PDF document text
    • https://sisodiwitamusoz.weebly.com/uploads/1/3/2/6/132681746/425989.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/vofixakiwofap_ruvativup_suwat_lajulexovoj.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/9b18cd795bd.pdfIn PDF document text
    • https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/8821510.pdfIn PDF document text
    • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/efcec58f.pdfIn PDF document text
    • https://jikolugoxolij.weebly.com/uploads/1/3/1/3/131379047/6874716.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/2a451a75-d656-47ea-88ea-d3daef7533a6/mekekexidameju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37b80742-f6d8-42b3-b1b7-570c5c794225/mejonanademovexutu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a833.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA833 24560 bytes
SHA-256: 0c1a5fc2bb166dfbe37ab39563a323d5c23b79e33a1469164c84350d10c247ea
font_00_sfnt_off00006b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B78 5076 bytes
SHA-256: 2251c1aa31b2de16f7b6c0df05dcea3f53d7f33f66e279a67e6f3a79318508ee
font_01_sfnt_off00007ca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA0 13524 bytes
SHA-256: b172f51e1864e9898c90b6f301e6fb572b181a00900ad84fd206fd9b24550245
font_03_sfnt_off0000d2f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F3 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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