Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aa2280f54c25079…

MALICIOUS

PDF

86.7 KB Created: 2021-05-07 03:41:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8cdb491274cfafb70117411c6a662f0 SHA-1: b8d36cd5e5397d9cbc5a704120dcce785aaa168d SHA-256: 5aa2280f54c25079492e543c8371989db2efc3afa43e8205f9e8dcd3ceaaa6d0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious domain, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://dugedepap.ru/strik?utm_term=jeep+body+repair+shop+near+me
    • http://atelier-spb.com/33139968479loo6r.pdf
    • https://tuxuboninivufos.weebly.com/uploads/1/3/4/4/134478209/58bad2723b.pdf
    • https://cdn-cms.f-static.net/uploads/4487632/normal_600bc4d36acc6.pdf
    • https://cdn.sqhk.co/nikitabejup/gjaZWjh/notosenofixizonu.pdf
    • http://dorightpress.com/gefozidikudow2zoto.pdf
    • https://cdn.sqhk.co/dafisuwikib/ljjNhdB/msn_online_games_text_twist_2.pdf
    • https://cdn.sqhk.co/mipemoku/hgihfhg/33364540140.pdf
    • http://lnstagram-helping.live/duginobotorituj0d2dg.pdf
    • http://premial.su/business_environment_analysisr2wdp.pdf
    • https://dawemewi.weebly.com/uploads/1/3/4/7/134747996/9965597.pdf
    • https://cdn-cms.f-static.net/uploads/4421639/normal_601404db8cb99.pdf
    • http://raifaisentapp.online/zutodexizemiraxuwuzehynkt.pdf
    • https://cdn.sqhk.co/nixivezez/geqefje/1_1_4_trailer_hitch_ball_mount_walmart.pdf
    • http://muldwych.com/inborn_errors_of_protein_metabolismoul3e.pdf
    • https://cdn.sqhk.co/veludewozen/aDwWRge/45930978673.pdf
    • http://francobusiness.com/xepikurizafuho9mr.pdf
    • http://clientesdkb.com/329570619788m4rq.pdf
    • https://static.s123-cdn-static.com/uploads/4426822/normal_5fef645536fd0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zunewidimem/chittaranjan_locomotive_works_annual_report.pdf
    • https://s3.amazonaws.com/xukonakefules/xevod.pdf
    • https://s3.amazonaws.com/lekizopiloref/totavuzataxakotawa.pdf
    • https://s3.amazonaws.com/xepululejiwof/kenmore_quiet_guard_2_dishwasher_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010904.bin
bc4c3f8aa43b3fa81568124cfead330c41e9e886ef7db82072bfaa63b4acaada
pdf-font-stream PDF embedded font (sfnt) at offset 0x10904 5108 bytes
font_01_sfnt_off00011a16.bin
22dd535a5c361b705e73d76014473ad80852a6941e419a320a99977cb1e85658
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A16 10892 bytes
font_02_sfnt_off00013f36.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x13F36 4324 bytes