Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd86af345575bfb…

MALICIOUS

PDF

79.0 KB Created: 2021-03-08 22:25:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 87da0678f8d6df258136f49d53bca7fd SHA-1: cf6550c9d48f0a34e03805e9b1dc15f1aa6daf3a SHA-256: 0bd86af345575bfb4fa2ef217760ed1c80a8f357e18e8a538fd685490aac5e28
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL that leads to a domain associated with phishing, disguised as a business plan sample. No scripts were extracted, but the presence of the malicious URL and the phishing lure strongly suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/award?keyword=laundry+shop+business+plan+sample+pdf PDF link annotation
    • https://mulunumidivopiz.weebly.com/uploads/1/3/5/3/135393794/nikejujivone.pdfIn PDF document text
    • http://xebobimifu.22web.org/public_relations_examples_2019.pdfIn PDF document text
    • https://wufanamokedig.weebly.com/uploads/1/3/5/3/135326106/juropiwago.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/naxozelozude/calculus_ii_lecture_notes.pdfIn PDF document text
    • https://7f993087-45f6-41f4-96e5-9dcaca18fb91.filesusr.com/ugd/9a92dd_6a75e261d5f04c98a9837e05df2d799c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/11611372021.pdfIn PDF document text
    • http://pazatirademe.rf.gd/sukilo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ade940c5-dec3-4e08-ba64-6bb993fa4074/66189220045.pdfIn PDF document text
    • http://ninalosuza.rf.gd/geometric_sequence_and_series_worksheet_12-_2.pdfIn PDF document text
    • http://zavozolumox.rf.gd/california_common_core_standards_second_grade_social_studies.pdfIn PDF document text
    • http://tuvalej.epizy.com/chromagen_170l_heat_pump_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/driver_canoscan_lide_220_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53913cc8-aa06-4589-87f5-5ba5ccfb4d8e/72795394579.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f391c0e-5f3a-45c2-84a9-370061846237/sozagano.pdfIn PDF document text
    • https://c0cead0d-5248-483d-940e-95cc3acd9bde.filesusr.com/ugd/20d83a_bf3cc0804c774216bda487040e2c0017.pdf?index=trueIn PDF document text
    • http://pusafoxuwemeko.epizy.com/how_long_does_it_take_to_become_a_medical_coder_and_biller.pdfIn PDF document text
    • http://fikikozazilut.rf.gd/gulerutukoni.pdfIn PDF document text
    • https://5a1138df-423b-4a5d-a7c7-36223740754e.filesusr.com/ugd/a72fa8_409400aa0bc549faa5d43452808d9be8.pdf?index=trueIn PDF document text
    • https://8fc1c2d6-49ba-4d63-8b95-0327ef2b1627.filesusr.com/ugd/1849a1_f7b3e15e6665486fa4c873b5b3d9b182.pdf?index=trueIn PDF document text
    • http://zijipowatik.epizy.com/76746319095.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/kofowexasezax.pdfIn PDF document text
    • https://bf6af823-cb0d-4ee8-9d5b-4f0b1de5ed24.filesusr.com/ugd/9eb187_10cbb8a42f724fa796a2e2337939c240.pdf?index=trueIn PDF document text
    • http://jujonejetas.epizy.com/naa_autograph_movie_songs_com.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/rilagelasitavasujo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF892 5464 bytes
SHA-256: a7bde21deb5c5a34651992b65b58ae74ac69ae035122dfb1b63509908bbcda76
font_01_sfnt_off00010b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B06 10256 bytes
SHA-256: 271feaedc46096768f3601cce17b05d772351c3510eefa39721867d3b25ef718

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