Malicious PDF — malware analysis report

Static analysis result for SHA-256 57696be640a8ed70…

MALICIOUS

PDF

74.8 KB Created: 2021-04-02 20:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 69728012ec193f166e90f4ca1f904ee6 SHA-1: dd78cb99b9fa99a08cc54d82ddd9823b7c0438a9 SHA-256: 57696be640a8ed70e535b66992a75ad3ed47b3120cab9552ac9bd48a546d29f3
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. It contains numerous embedded URLs, many of which point to disposable domains or link farms, suggesting an attempt to obscure the true destination or distribute various lures. The document body, though heavily obfuscated, contains keywords related to warrants, indicating a potential lure for users seeking legal information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=desoto+county+florida+warrants PDF link annotation
    • https://cdn.sqhk.co/fofodafexadu/gjiizdb/flags_around_the_world_with_names.pdfIn PDF document text
    • http://lexanizisujufum.66ghz.com/android_10_alacak_telefonlar_epey.pdfIn PDF document text
    • http://xepelewatelaziv.getenjoyment.net/loxogugeparuvoguki.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/h3hahaT/scary_sounds_dogs_hate.pdfIn PDF document text
    • http://nizewapujapoj.22web.org/nelutabez.pdfIn PDF document text
    • http://jigitozunawada.66ghz.com/tilray_earnings_report.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/gc3igjf/preschool_business_plan_template.pdfIn PDF document text
    • http://sanamikegimelab.22web.org/adobe_reader.pdfIn PDF document text
    • http://jezugelevafebir.22web.org/ielts_certificate_sample.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vogizopenukese.epizy.com/sickle_cell_disease_complications.pdfIn PDF document text
    • http://xojesenokok.epizy.com/multiplayer_android_games_with_friends.pdfIn PDF document text
    • http://suvowafavij.epizy.com/20180935757.pdfIn PDF document text
    • http://fojoxolizono.rf.gd/retuxegikugo.pdfIn PDF document text
    • https://d78d2789-9aef-4bfd-88be-9093bec910ef.filesusr.com/ugd/87a178_2190d425014a45ccbfcf06f595785b3e.pdf?index=trueIn PDF document text
    • https://28546a20-d0cc-4b82-bb4f-6711990cd5a3.filesusr.com/ugd/0bcf16_645bf3bb77ed447ab3a8f0ecc9380732.pdf?index=trueIn PDF document text
    • https://438e95ed-c264-4db5-88d3-1a9ca8b91b86.filesusr.com/ugd/733c1f_063adee45e45476e97f696e0a997c4fa.pdf?index=trueIn PDF document text
    • http://panexorumilogim.myartsonline.com/20078517555.pdfIn PDF document text
    • http://vomogowejupilu.rf.gd/gijonemimipipabipus.pdfIn PDF document text
    • http://bilewotefizu.rf.gd/remim.pdfIn PDF document text
    • http://rukukuwozar.epizy.com/risk_of_rain_2_save.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D9 5208 bytes
SHA-256: cb883bbbeecd7251211b3702aab110dc055678be154dee01fcfee2d527482cc6
font_01_sfnt_off0000fac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC0 10424 bytes
SHA-256: 6d439c5b92f71f9810e9e72b530119d80bbebd828f747909d6f3ff7411da5b58

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