Malicious PDF — malware analysis report

Static analysis result for SHA-256 02eaf4bcc12f1bc0…

MALICIOUS

PDF

86.6 KB Created: 2021-03-19 03:32:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 0c037f5829dc1613e47db393c4446b35 SHA-1: e2116c48b155df6097a23f791be126b502f198e0 SHA-256: 02eaf4bcc12f1bc05635bd8306b587c5eb10b020d9383697bd92c0d993465e90
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure indicate an attempt to deliver a payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/strik?utm_term=dewalt+chop+saw+parts+dw718 PDF link annotation
    • http://copyrights-notices-helps.com/worelegidafexaganujajezq65mq.pdfIn PDF document text
    • http://wirobigi.medianewsonline.com/normalidad_anormalidad_y_crisis.pdfIn PDF document text
    • http://meetplafond.xyz/gitajuzubebixusefgo6yx.pdfIn PDF document text
    • http://vittorguxx.site/how_to_fix_ac_unit_not_blowing_cold_airuku2q.pdfIn PDF document text
    • http://wamipivifubape.sportsontheweb.net/60493981849.pdfIn PDF document text
    • https://wemawamirake.weebly.com/uploads/1/3/5/9/135959397/2f957529598a.pdfIn PDF document text
    • http://zixaxagewan.mypressonline.com/girekejusujodopijopegog.pdfIn PDF document text
    • http://power-guard.shop/fallout_shelter_weapons_listdgsnr.pdfIn PDF document text
    • https://lidawutoroliv.weebly.com/uploads/1/3/1/8/131872032/ab92fb4b.pdfIn PDF document text
    • https://mosuvixixe.weebly.com/uploads/1/3/0/9/130969854/5bdc27e4d19e96.pdfIn PDF document text
    • https://sapobukemofox.weebly.com/uploads/1/3/5/9/135974899/302dc21.pdfIn PDF document text
    • http://tublitalia.space/36209839783z34op.pdfIn PDF document text
    • http://jushq.club/puloguxekogegjieoo.pdfIn PDF document text
    • http://blockhcain.host/fomobujuwidawoleruirj2h.pdfIn PDF document text
    • http://fetesitomer.mygamesonline.org/army_pt_formation_reddit.pdfIn PDF document text
    • http://vedice.ru/how_to_trade_stocks_for_beginners_australiatu11l.pdfIn PDF document text
    • http://pagebake.com/alesis_v49_manual_espaolp9vu3.pdfIn PDF document text
    • http://italiahot.fun/cido_lauricodohv6.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
    • http://firiwigisu.atwebpages.com/brother_dcp-j572dw_ink_levels.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65708f26-e4ee-4513-b3ca-e18b9320da7b/why_do_rappers_have_weird_real_names.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/321792aa-a904-4d30-9704-ef9fe3334198/tobojuvadaze.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_off0001098b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098B 5212 bytes
SHA-256: 4ec0536d7de996656dd0dcc35263322209f6f5851c6234adf246e6710e1d1713
font_01_sfnt_off00011b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B77 10016 bytes
SHA-256: 54f3105a024fd8f9ea295dea6646d19dd590e4ff7eed2cc8694da9219ea84db8
font_02_sfnt_off00013dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DCF 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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