Malicious PDF — malware analysis report

Static analysis result for SHA-256 e205ae9c8f14324b…

MALICIOUS

PDF

72.3 KB Created: 2021-05-31 23:50:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26e43ce7c33963f3486845b74e3bcb48 SHA-1: 512cb4a5b0224b2fb5fdec16b51529d46709ec7e SHA-256: e205ae9c8f14324bca56b2ac7b940e7c6fb071ba64a41a91513fb556a59b01fe
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, contains text fragments related to finding lost iPhones, reinforcing the phishing lure.

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://synerhu.ru/pbw?utm_term=find+my+friends+lost+iphone+free
    • https://nefafege.weebly.com/uploads/1/3/4/6/134642137/e6d86332b8.pdf
    • https://sarodinejafa.weebly.com/uploads/1/3/4/7/134762654/kalade.pdf
    • https://static.s123-cdn-static.com/uploads/4427783/normal_60082e3cb0dd5.pdf
    • https://cdn-cms.f-static.net/uploads/4388038/normal_604ce49124660.pdf
    • https://cdn-cms.f-static.net/uploads/4456998/normal_6060a4d4a1499.pdf
    • https://milanabez.weebly.com/uploads/1/3/2/6/132695465/1352886.pdf
    • https://gedenotovet.weebly.com/uploads/1/3/1/3/131379555/sazuk.pdf
    • https://static.s123-cdn-static.com/uploads/4472484/normal_5fdf0ef688163.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zelovoguvunu.pbworks.com/w/file/fetch/144427086/conversione_file_in_word_online_gratis.pdf
    • http://fisukafetif.pbworks.com/w/file/fetch/144419037/raven_cruizer_ii_price.pdf
    • http://kokoxudalux.pbworks.com/f/muzuwofububi.pdf
    • http://wuxikadafi.pbworks.com/w/file/fetch/144420903/is_there_an_equalizer_for_spotify.pdf
    • http://mumasenekera.pbworks.com/w/file/fetch/144417189/63693963260.pdf
    • http://tukufidanega.pbworks.com/f/lanogubolosetugaditivor.pdf
    • http://jozeluwofe.pbworks.com/w/file/fetch/144425784/24140803086.pdf
    • http://siwuromo.pbworks.com/w/file/fetch/144425223/what_are_bipolar_junction_transistors.pdf
    • http://rugewenuzed.pbworks.com/w/file/fetch/144421794/51978280902.pdf
    • http://pitevaj.pbworks.com/f/92425569786.pdf
    • http://visetululiv.pbworks.com/f/27058109499.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de47.bin
fa7bf00858d65b650037e0918416284cc1c609e6f77335a02925122dec53e06a
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE47 5128 bytes
font_01_sfnt_off0000ef9b.bin
f2228a27a1e3a7cf29d357b308adb3db32b0445b75648c75fcad01e0e9ae42bc
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9B 10632 bytes