Malicious PDF — malware analysis report

Static analysis result for SHA-256 daef6a5921d046da…

MALICIOUS

PDF

64.0 KB Created: 2021-02-25 16:40:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d0653962f0b15fae82b10ac55d7c6511 SHA-1: 967f9b0761059e5ba68bc6e4e86b97e3ae2936af SHA-256: daef6a5921d046dae9f8e424506055cf1d14640fbb4cc495d87020e1a1cf7a03
124 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics and a machine learning classifier. It contains numerous external links, many pointing to disposable hosting, and one specific URL, 'https://bologen.ru/strik?utm_term=how+to+check+power+supply+status+in+hp-ux', which is likely part of a phishing or malware distribution campaign. The document body text is heavily obfuscated and appears to be a lure for technical information, further supporting a phishing or malware delivery intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8429

Heuristics 4

  • 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
  • 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/strik?utm_term=how+to+check+power+supply+status+in+hp-ux PDF link annotation
    • https://kominalekawer.weebly.com/uploads/1/3/1/6/131636772/e9e7e893b.pdfIn PDF document text
    • http://lakujalinifibo.mypressonline.com/french_story_books_for_beginners.pdfIn PDF document text
    • https://pazisurezufil.weebly.com/uploads/1/3/4/5/134594691/2505469.pdfIn PDF document text
    • http://tehnotop.space/bovukefagekazemukewirqr559.pdfIn PDF document text
    • https://denogowozule.weebly.com/uploads/1/3/5/3/135326247/5658369.pdfIn PDF document text
    • https://cdn.sqhk.co/gimatuvuwiw/hajbjLp/refadagegejeful.pdfIn PDF document text
    • http://easterthjg.com/16092478102zmwf0.pdfIn PDF document text
    • http://mobeditobaxul.scienceontheweb.net/2020_starcraft_mossy_oak_ultra_lite_311bh.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/gotuderawase.pdfIn PDF document text
    • http://matroskin.space/fiwojukanamunipedu45dw.pdfIn PDF document text
    • https://kaxobemux.weebly.com/uploads/1/3/4/6/134676595/8363915.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/47739818707.pdfIn PDF document text
    • https://cdn.sqhk.co/ranotigu/j8hZifb/sandwich_sudoku_app.pdfIn PDF document text
    • https://jonimewogil.weebly.com/uploads/1/3/1/8/131860125/5619041.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fapaga/togunixuzo.pdfIn PDF document text
    • http://wobanunep.myartsonline.com/10717319707.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/gabriel_faure_romance_sans_paroles_op.17_no.3.pdfIn PDF document text
    • https://s3.amazonaws.com/jupoti/72397262714.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/weather_report_bihar.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/english_pronunciation_guide_for_spanish_speakers.pdfIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BC 5340 bytes
SHA-256: 61ff4a7906f0784f901d06d43ef2775d517cb6ab2b517f0577d89c84563446a0

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