Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e793d524568064…

MALICIOUS

PDF

92.0 KB Created: 2021-03-21 02:39:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 47fc492ff4f9d40c60f35fef19a58488 SHA-1: 90719dd0f99b522a16db71c7691dfb2cebe01885 SHA-256: 96e793d524568064a916d724f3075c1d1da25cbcb397ab2867ba481dedb530a0
126 Risk Score

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 0.9994

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://soxebez.ru/wix?keyword=cable+one+tv+guide+idaho+falls+id PDF link annotation
    • http://nesobaka3.xyz/report_injured_wildlife_canberra1g8sb.pdfIn PDF document text
    • http://debesur.iblogger.org/verifone_vx520_manual_paper_feed.pdfIn PDF document text
    • http://kudezuzizozefu.iblogger.org/zasitug.pdfIn PDF document text
    • http://bodyita.space/gidatuvabivitusinr9vd.pdfIn PDF document text
    • http://guzanarogenuje.iblogger.org/sketchup_pro_2019_free_license.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/panalipolifod/3231562298.pdfIn PDF document text
    • https://f6180879-d31b-499c-8e42-fead7842c491.filesusr.com/ugd/007227_1af76aaf70294eea89453f5df4812303.pdf?index=trueIn PDF document text
    • http://vukekabexipog.rf.gd/8074354.pdfIn PDF document text
    • https://8eb0ff2f-1b5f-41fb-a82b-bf279dc7f43e.filesusr.com/ugd/868f76_b49f7c10cbbe4187a398ddc47032ec65.pdf?index=trueIn PDF document text
    • https://4dcfe184-cd6c-48f8-9f23-5461c743a1d4.filesusr.com/ugd/cc8533_978b6c05fcfc430ca964e9262570e68d.pdf?index=trueIn PDF document text
    • http://wiwifiladovov.epizy.com/78054268853.pdfIn PDF document text
    • http://bodazovire.epizy.com/bk_shivani_videos_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/25519846904.pdfIn PDF document text
    • https://fb9345b8-40be-4608-a8ff-9c5427dba92f.filesusr.com/ugd/98d639_fc1ec26be87d431c895a6383c1742eb0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/aradana_tv_app_free.pdfIn PDF document text
    • http://pejonoma.epizy.com/hoover_windtunnel_2_belt_change.pdfIn PDF document text
    • http://zufarelizija.epizy.com/56270675399.pdfIn PDF document text
    • http://forapijedowuvo.rf.gd/download_eraser.pdfIn PDF document text
    • http://museduzapotu.epizy.com/89616436870.pdfIn PDF document text
    • https://123949be-7110-4ba3-a240-a7df06fb38ce.filesusr.com/ugd/80fd5d_3818da8d76f349168502d80fc097136a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/2663333192.pdfIn PDF document text
    • http://riboparewi.rf.gd/how_often_should_a_man_lift_weights.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_off00011b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B14 5180 bytes
SHA-256: 679ac937c3823a3b6f1ff5f0cd282062c735c5e3f006736dcfb11f49b040e1ed
font_01_sfnt_off00012cba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CBA 11948 bytes
SHA-256: c2331150a0d548b1da22ba17e0b1c30c577209204cf9322afaa60cdc8083a3cc
font_02_sfnt_off0001542c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1542C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e