Malicious PDF — malware analysis report

Static analysis result for SHA-256 2807f44d08a792ec…

MALICIOUS

PDF

67.7 KB Created: 2021-03-09 22:52:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d3cc543078fb4a0af4a06c225c824bab SHA-1: 51e1040bfb05a8592ebc68278e0d0bbb716eb000 SHA-256: 2807f44d08a792ec29ef4e20973be35dd6d4ca37c2b71867769791aad553553c
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 0.9998

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://zajinet.ru/wix?keyword=wheel+horse+trailblazer+7+snowblower+manual PDF link annotation
    • http://torchqbfl.fun/libros_de_abraham_valdelomarturnm.pdfIn PDF document text
    • https://cdn.sqhk.co/bejomewuv/ibktjdM/alienware_desktop_buy.pdfIn PDF document text
    • http://top-shop-store.website/which_civilization_started_in_the_nile_river_valley_weegyheach.pdfIn PDF document text
    • http://moneyindia.site/zelomelizukufinurupogsbvi.pdfIn PDF document text
    • https://jotowaviroretog.weebly.com/uploads/1/3/4/6/134604658/b1803b50f64.pdfIn PDF document text
    • http://2020coupons.info/belly_fat_exercise_plantf7c9.pdfIn PDF document text
    • https://judozolu.weebly.com/uploads/1/3/1/4/131407514/8816919.pdfIn PDF document text
    • https://xalorato.weebly.com/uploads/1/3/4/3/134317389/gibevakewij_mekekowijalol_feruxewamabe.pdfIn PDF document text
    • https://bewogataxatux.weebly.com/uploads/1/3/2/6/132695278/c8cb914c8.pdfIn PDF document text
    • http://bestplacefor.rest/apa_format_bibliography_research_paper361ay.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/ijZNmhf/pencil_box_clipart_black_and_white.pdfIn PDF document text
    • http://linza.media/nuance_power_advanced_trial_downloadafprq.pdfIn PDF document text
    • https://jitonugen.weebly.com/uploads/1/3/4/6/134617549/joxejufus.pdfIn PDF document text
    • http://about-central.com/98170591329r3vjp.pdfIn PDF document text
    • http://safetymirrors.xyz/how_to_fix_leak_in_delta_bathtub_faucet4z2oc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/64096881033.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c195d80-1f1d-45d7-84c2-923f70b62169/fulepuvelemurilawuribi.pdfIn PDF document text
    • https://s3.amazonaws.com/lazesej/38086068892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b5a9756-3bf7-4d69-88e2-712741edaa6a/garimo.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_off0000cded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDED 5300 bytes
SHA-256: 7a43006bc4a0f17099aa603602de8cd5b1e43452ac2c47d4814afeda80c95e8c
font_01_sfnt_off0000dfed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFED 9880 bytes
SHA-256: 04fba9ce3bace659c20fe0c50693a1ca0638839a3f8ffbbed9096f9f35fea6be

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