Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0be8782f6845f29…

MALICIOUS

PDF

109.0 KB Created: 2021-03-30 08:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e09f2f1579f37319912846219d28254d SHA-1: 2d9a421774d0aae224d452f5839751cdb1d6d5d0 SHA-256: a0be8782f6845f2926e929acfba06b60df0a27aafb882993098f8efbedc3e9d5
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of an external URI and the overall classification suggest an attempt to redirect the user to a malicious site, fitting the pattern of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=gundam+g+self+wiki
    • https://static.s123-cdn-static.com/uploads/4492593/normal_5fc9b9ddefab6.pdf
    • http://imkl-checker.com/how_to_assemble_lifetime_basketball_goaly3ycf.pdf
    • http://dkblogin-de.best/what_do_hearing_aid_domes_do0khy8.pdf
    • http://naturebiolog.fun/super_bomberman_2_romkxet0.pdf
    • http://vinnipoh.space/53294730626uvctn.pdf
    • http://tehnotop.store/tenvis_camera_setup_passwordp3iff.pdf
    • http://farvestnn.ru/fuxazugebueb6.pdf
    • https://static.s123-cdn-static.com/uploads/4490370/normal_5fe19dd180b15.pdf
    • https://cdn-cms.f-static.net/uploads/4468540/normal_602dcf4533b5b.pdf
    • http://raisinsapp.pro/kenaj2qsna.pdf
    • https://cdn-cms.f-static.net/uploads/4474220/normal_603324b9b68a8.pdf
    • https://static.s123-cdn-static.com/uploads/4465565/normal_60084aec6f566.pdf
    • https://static.s123-cdn-static.com/uploads/4473954/normal_5fe1ac5d27a14.pdf
    • https://cdn-cms.f-static.net/uploads/4375080/normal_605a42bc5b0d6.pdf
    • http://naturebiolog.space/veg_recipes_for_dinner_in_hindim864e.pdf
    • http://instapriz24.site/xizelelotavegepefshsxt.pdf
    • http://baugroup.info/dotonupub2y2n0.pdf
    • https://static.s123-cdn-static.com/uploads/4447258/normal_5fcd0fdaa3d91.pdf
    • http://item-mask.top/is_the_lost_husband_on_uk_netflixeheoj.pdf
    • https://cdn-cms.f-static.net/uploads/4462037/normal_5fdc7d79edc0b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://af431a04-9ebc-4ea4-a98d-45e4ffbfad14.filesusr.com/ugd/485053_b28ea21455134bc889de25f4e656a736.pdf?index=true
    • https://d6504552-49b0-4b7d-b1ff-94f9e1082b83.filesusr.com/ugd/1f0558_6f4b7d2ac785435a98c77d8dcc914ffc.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c5b.bin
56b30d83920ff1cf81deafb4a3c1659eb05aec1e329c35c8e81ff1dbf3e45dd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C5B 26448 bytes
font_01_sfnt_off00016c00.bin
87d96165f347678d595cad705adbb938b2a1596906d769204f217b00bbaf1407		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16C00 5316 bytes
font_02_sfnt_off00017e20.bin
f2802a501aad3d3218b1d2e14a1ee12a376da4631c4ba9ecb1a49b70863049f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17E20 11760 bytes

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