Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a67ceabe3a877f1…

MALICIOUS

PDF

72.4 KB Created: 2021-02-17 15:20:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cc4ee81aa224bb73a4421709f06be2ed SHA-1: a42de25ae7f70f9e78767bd52c799476cd0e8e19 SHA-256: 2a67ceabe3a877f100d95f8aa27f7f1c0d7efd612a171c54ce6bf8e43f40278f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://baarspo.ru/wix?keyword=molar+mass+calculations+and+mole+mass+conversions+worksheet PDF link annotation
    • http://womenalikumat.22web.org/xuzudunikofonumogubewepu.pdfIn PDF document text
    • https://lawilutimi.weebly.com/uploads/1/3/4/8/134879912/d0f398ffb1d5.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/jhfhdja/juwijesadagegamubul.pdfIn PDF document text
    • http://tegeboxurogon.iblogger.org/fossil_neutra_chronograph_stainless_steel_watch_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/xoraxuvonaf/hOS6vry/toca_life_stable_apk_free_download.pdfIn PDF document text
    • https://tizevilujiv.weebly.com/uploads/1/3/1/4/131406709/2237324.pdfIn PDF document text
    • https://cdn.sqhk.co/tisorobew/hfOogjm/throne_rush_mod_apk_2020.pdfIn PDF document text
    • http://gilatum.iblogger.org/10890488247.pdfIn PDF document text
    • https://nawawedivoxoni.weebly.com/uploads/1/3/4/7/134719505/5bb599.pdfIn PDF document text
    • https://gepavemu.weebly.com/uploads/1/3/4/8/134861499/wogaxirin-lasadaronuvo.pdfIn PDF document text
    • https://cdn.sqhk.co/zatejurix/eHhehcs/merge_magic_easiest_wonders.pdfIn PDF document text
    • https://derakudo.weebly.com/uploads/1/3/4/2/134266069/6948489.pdfIn PDF document text
    • https://cdn.sqhk.co/napefabet/7XJSgjj/guide_fall_guys_tips_tricks.pdfIn PDF document text
    • https://cdn.sqhk.co/bajafigotuvi/iUYCcbn/pc_farming_simulator_mods.pdfIn PDF document text
    • https://pinoxelu.weebly.com/uploads/1/3/4/1/134108818/aca4cd22ff95da.pdfIn PDF document text
    • https://wufipalowev.weebly.com/uploads/1/3/4/5/134595621/tagewa-lubiwuvufafive-sakekov-zesugimidafibi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rejinivak.rf.gd/video_using_facebook_link.pdfIn PDF document text
    • http://lepefefila.epizy.com/fegarufajuxegar.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_off0000ddc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC4 5400 bytes
SHA-256: 8897bd1f099f632471d4b3b085df2c1f7244812278628e59c7e60a21a307b9a5
font_01_sfnt_off0000f014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF014 10416 bytes
SHA-256: b8ba32d98f12c8dc7bb3cbcd1be7b387566a6330fbdf3c45b2c1fe8fe719f19e