Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabfe5efdccc4cdf…

MALICIOUS

PDF

86.6 KB Created: 2021-03-11 21:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7e3aaefa1649ec3f67d4fb9e08d0e78c SHA-1: 2697d3858ed2ba85aa6a99b74c94b1acc50e54c5 SHA-256: eabfe5efdccc4cdfb98c56a035e9d818c5a6f0c4db0511c7f76a96257a312635
154 Risk Score

Malware Insights

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

This PDF was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing lure. It contains numerous external links, many hosted on disposable domains, suggesting an attempt to direct users to malicious content. The document body, though heavily obfuscated, contains keywords related to bills and downloads, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gimoguvi.ru/award?keyword=bescom+bill+download+pdf PDF link annotation
    • http://riwotivadejud.sportsontheweb.net/96622478681.pdfIn PDF document text
    • https://ranalugepileli.weebly.com/uploads/1/3/4/7/134735155/25d4ec7b482ab2.pdfIn PDF document text
    • http://konalofasu.mywebcommunity.org/what_is_meant_by_lockout_services.pdfIn PDF document text
    • http://libralab.digital/65948946823b4w5p.pdfIn PDF document text
    • https://modulofironufi.weebly.com/uploads/1/3/4/4/134402713/rasaf-mubar-zabofo.pdfIn PDF document text
    • http://topukovatawosu.sportsontheweb.net/roteiro_de_leitura_mensagem_de_fernando_pessoa.pdfIn PDF document text
    • https://watogovujun.weebly.com/uploads/1/3/4/6/134626060/vobikan.pdfIn PDF document text
    • http://kimokabif.medianewsonline.com/61340595148.pdfIn PDF document text
    • http://pro-konditer.com/vuvozoririruruxelun4q3s.pdfIn PDF document text
    • http://diluzadumavotux.getenjoyment.net/is_optavia_safe_for_diabetics.pdfIn PDF document text
    • http://dasiwujupuna.sportsontheweb.net/chronicles_of_narnia_characters_meaning.pdfIn PDF document text
    • http://gemofesane.medianewsonline.com/42645035982.pdfIn PDF document text
    • http://luziniwanemek.sportsontheweb.net/28277518868.pdfIn PDF document text
    • http://itanah.space/pexedunizuwusubw4dnb.pdfIn PDF document text
    • http://lnstagramverifiedbadge-form.com/wojodinosebuxoxelugivet8zzk.pdfIn PDF document text
    • https://durirumis.weebly.com/uploads/1/3/3/9/133999752/24935e1f72ec4.pdfIn PDF document text
    • https://gixinizolovuz.weebly.com/uploads/1/3/5/3/135348456/givafu.pdfIn PDF document text
    • http://libralab.digital/dazujuvijasatiboruzogikob0cei.pdfIn PDF document text
    • https://zufodivovogopot.weebly.com/uploads/1/3/1/3/131383523/b0cddb.pdfIn PDF document text
    • https://tipureroxagojox.weebly.com/uploads/1/3/6/0/136096040/7fec6c524a7cc.pdfIn PDF document text
    • http://jigapenufi.medianewsonline.com/gmc_miter_saw_blade_replacement.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zevusup.atwebpages.com/how_hard_is_gre_quantitative_questions.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/23814233332.pdfIn PDF document text
    • http://zepizevut.atwebpages.com/jalolojov.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10159 5488 bytes
SHA-256: 7a23ce68468e5b6454ff9f664f2aa61e78986d2d92e2e9987282cbcb0e64eacf
font_01_sfnt_off00011403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11403 10392 bytes
SHA-256: c6939571d6cf6d384cacc4a1ab4c50244a415c41575887c65636918d511aacf3
font_02_sfnt_off000137c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137C7 16164 bytes
SHA-256: 6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3