Malicious PDF — malware analysis report

Static analysis result for SHA-256 390bcc3d5e862aad…

MALICIOUS

PDF

75.4 KB Created: 2021-03-25 13:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a39db77bbdce1bffc707fb1014a0a622 SHA-1: 707d01501396b926b43b31b7b5083347c3941bc2 SHA-256: 390bcc3d5e862aad8589a7f7359319ae7745387b40d205e83367d980663d001d
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to "The Pardoner's Tale" to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=the+pardoner%2527s+tale+question+answers
    • http://natorg.space/8926413907838eou.pdf
    • https://cdn.sqhk.co/bodujemep/bf8XKzp/futirini.pdf
    • https://cdn-cms.f-static.net/uploads/4448539/normal_6046697c0f07e.pdf
    • http://lollipopa.online/59241747266o9rkb.pdf
    • https://cdn.sqhk.co/wuvinudubuno/ncDOXhe/finolawaru.pdf
    • https://static.s123-cdn-static.com/uploads/4411701/normal_5fdff1e056e40.pdf
    • https://cdn.sqhk.co/vujenibolo/liehhnh/street_fighting_2_kung_fu_mod_apk_download.pdf
    • http://dixojele.22web.org/brooklyn_2015_full_movie.pdf
    • http://wspring.space/lovafan08wcf.pdf
    • https://static.s123-cdn-static.com/uploads/4403429/normal_5fec6760c2f4a.pdf
    • http://damvglaz2.xyz/xakosabadopiwabutoturoq3yq.pdf
    • https://cdn-cms.f-static.net/uploads/4486983/normal_60321d7e851fc.pdf
    • http://zokabuxekego.22web.org/39803169031.pdf
    • https://cdn-cms.f-static.net/uploads/4388619/normal_602f476df35f9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://duwamiwimi.rf.gd/michelin_star_guide_2020_uk.pdf
    • http://rigevigikeso.rf.gd/creo_parametric_tutorial.pdf
    • http://ruwiterisu.rf.gd/poxoraxebulanuluzirin.pdf
    • http://jikorali.rf.gd/18097661151.pdf
    • http://jilawovo.epizy.com/vumugituzuwodevetupus.pdf
    • http://vuzosaxa.epizy.com/dosev.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_off0000e8f7.bin
6222c289e7bbbb39d955bbacdf1796d8373723835c02c0dd0e85762038f6df9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F7 5248 bytes
font_01_sfnt_off0000fad8.bin
b5fa6e5d21432dbd32ced9847c8436479536769f49700959f8079a23dfa80eeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD8 11024 bytes

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