Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50a83851c99e736…

MALICIOUS

PDF

71.5 KB Created: 2021-02-26 08:00:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4d53ddfe9c05d279d4f021fc857f1eb3 SHA-1: 948309707efcbdd399d7b96fbdddd3d6d6d75856 SHA-256: e50a83851c99e73677b72cfaa7d0ac3304b1f847f1f7cc73ab981aa3a4087bfc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://baarspo.ru/wix?keyword=roblox+fe+admin+gui PDF link annotation
    • http://fasekafalig.scienceontheweb.net/jesus_and_the_disinherited_sparknotes_chapter_3.pdfIn PDF document text
    • http://beramomu.22web.org/27177454546.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446034/normal_5ffe292360e62.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/what_to_expect_after_6_months_of_dating.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495039/normal_5ff75d0b2ae34.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/loverubazugilozuda.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/59121255274.pdfIn PDF document text
    • http://punavuvipufov.sportsontheweb.net/ketixuwamelokiwupotuvurow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421042/normal_5fdd5c6d398dd.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/nafuzililowarawakagike.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/jinotugiwomo/cannon_safes_customer_support.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/saxovogalivat.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/abcd_telugu_movie_songs_free_320kbps.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/36901747557.pdfIn PDF document text
    • http://vibejasejejake.epizy.com/vuvepopaneli.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/42894847159.pdfIn PDF document text
    • http://gugamofizuxeg.epizy.com/rujitegupolekotarefapid.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/xavosozijukumupuboteviv.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/adjectives_before_nouns_worksheets.pdfIn PDF document text
    • http://ziwejozaz.epizy.com/annual_leave_form_word.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_off0000dcb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB0 5168 bytes
SHA-256: 69058838292cc977c096e94841cf016935eba36359d339c38f4e99088e8d4d90
font_01_sfnt_off0000ee47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE47 10240 bytes
SHA-256: 457c4c95303d9b7e654cffa9cf76a764626f56a8f3c29ffee768f4f0e2b102b9

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