Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7027f1886d612ca…

MALICIOUS

PDF

79.5 KB Created: 2021-04-06 17:02:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a3c5bc113b1ac06ce42c092547c680c5 SHA-1: 165a11dcee5de6fd8c4bf4b43548c890c744462f SHA-256: f7027f1886d612ca2a9a76c375095838f0efdc6835bdccd809f155950e4b73d8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/123?utm_term=bedsheet+sale+near+me PDF link annotation
    • http://solavopuna.22web.org/tezozun.pdfIn PDF document text
    • https://cdn.sqhk.co/mekewufi/Eggght4/53850484692.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugewameru/Fxbowhd/jurassic_craft_dinosaurs_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/jupufopil/gdFhahe/maludefapuka.pdfIn PDF document text
    • http://dukozodi.iblogger.org/top_movie_sites_malayalam.pdfIn PDF document text
    • https://cdn.sqhk.co/zosiwutu/heJnhgZ/strike_galaxy_attack_hack_apk_download.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://s3.amazonaws.com/zatazewoz/35381153308.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92842b93-56b7-4d77-8b6c-0d11aa19f432/58639348727.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2e9eab1-748b-43d8-a05f-31179e769469/law_of_property_act_1925_section_362_and_196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d89a2b9f-db01-4fea-8a85-ab8b2fb7d098/how_to_fix_craftsman_snowblower_transmission.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6df2d922-f0e6-49d4-bdcb-9f11a5cbbe4d/how_to_find_instantaneous_speed.pdfIn PDF document text
    • http://vugupopoji.epizy.com/how_do_i_change_my_vivint_thermostat.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/50_cotton_50_polyester_bed_sheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32eca74e-225e-458a-84c9-c1d5ae1ee36a/12976543273.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/233ecc3d-d322-499c-9057-8c32ebdbf97a/how_to_take_apart_a_frigidaire_washer.pdfIn PDF document text
    • http://sewevikefusox.epizy.com/linugujoxekomowaxidaz.pdfIn PDF document text
    • http://latopoladizewel.rf.gd/zubimadaxex.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/nijamatezomexotiges.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3ee98ac-f089-43bf-b624-dad2c9c77ff6/14759060428.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bb124aa-64c5-45a0-9b30-f6073c1d4362/4587239071.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15203ac6-32cd-4cf2-ac80-bbb8bcedaf4a/worewawasibarotedixobigos.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6D 4744 bytes
SHA-256: e3e234b776f6be71fd8c6713708b61812cdd12073076f4f64049eedc94d6a477
font_01_sfnt_off0000fe4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4B 10808 bytes
SHA-256: 9ddf45c79a3bdad803aa795be313317318197c2750856660e2ae379a205f032e
font_02_sfnt_off00012320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12320 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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