Malicious PDF — malware analysis report

Static analysis result for SHA-256 f00ae6990c21314e…

MALICIOUS

PDF

90.4 KB Created: 2021-04-11 18:14:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: deddd10a810c68f90c78bf8cb353bd18 SHA-1: 71365b72b437cf39b28c769d18bf33a7f0fc971f SHA-256: f00ae6990c21314ef8f2bd317c170b72d991331fa5f67b4ca1156cc43405b2f7
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that masquerades as a search result for a specific query, aiming to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of external URIs suggests the document's primary purpose is to redirect the user to a potentially harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/strik?utm_term=best+stealth+camera+app+for+android
    • https://vizifeji.weebly.com/uploads/1/3/0/7/130775372/7e43739876.pdf
    • https://jukosixosibi.weebly.com/uploads/1/3/1/8/131871462/jugekepuruwasizekid.pdf
    • http://tuwimig.scienceontheweb.net/79631986455.pdf
    • https://nefabilaj.weebly.com/uploads/1/3/1/4/131438225/vekeje-pagejuvagiv-degufifikomo-xiwoj.pdf
    • https://static.s123-cdn-static.com/uploads/4473023/normal_5fe166c0a669c.pdf
    • http://lunatan.medianewsonline.com/9008332634.pdf
    • http://luziniwanemek.sportsontheweb.net/90462777772.pdf
    • https://cdn-cms.f-static.net/uploads/4495055/normal_601ef1454df2c.pdf
    • https://fewebiporunivag.weebly.com/uploads/1/3/0/7/130775920/fakames.pdf
    • https://nelizozab.weebly.com/uploads/1/3/0/8/130874358/8252687.pdf
    • https://cdn-cms.f-static.net/uploads/4494893/normal_606cc7147c8ae.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bosovegiged.rf.gd/91365142787.pdf
    • http://polopurug.rf.gd/weed_eater_walk_behind_mower_parts.pdf
    • http://balunepikejevo.rf.gd/canoscan_lide_200_manual.pdf
    • https://s3.amazonaws.com/fedufiporara/rincon_del_vago_lazarillo_de_tormes_resumen_por_capitulos.pdf
    • https://s3.amazonaws.com/gezetega/baruzejumanijopokipikun.pdf
    • https://uploads.strikinglycdn.com/files/e60ce0dc-b518-4bab-b60c-2d19e7d95b49/dawaligekulekigijevobex.pdf
    • https://uploads.strikinglycdn.com/files/58a4ce32-e3a2-4fd9-af24-2f4e4aa92735/when_does_a_unilateral_mistake_make_a_contract_voidable.pdf
    • http://venakato.epizy.com/julofojafusofeneviji.pdf
    • https://s3.amazonaws.com/zamemigojat/forma_de_comunicacin_escrita.pdf
    • https://s3.amazonaws.com/desekusoxi/kokeratadububaw.pdf
    • http://refokosawo.epizy.com/alta_via_dolomiti_3.pdf
    • https://s3.amazonaws.com/tosego/13172587998.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010eb5.bin
ac2c40e5dcb2652824fdb51cb7c8813dc8a44a80a5f5a594040b001cac2b0749		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EB5 5444 bytes
font_01_sfnt_off0001210d.bin
057887d00c4cbbf91c5b580bfea8be0fd414b8ba939c484cea04d6f2dd173fa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1210D 11036 bytes
font_02_sfnt_off000146db.bin
f12bcc42cb143e9cc41a08ef9f9c81c8a36c017982c073a20263204097028d61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x146DB 16100 bytes

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