Malicious PDF — malware analysis report

Static analysis result for SHA-256 14f8a05cf5ab7d0d…

MALICIOUS

PDF

65.6 KB Created: 2021-03-11 06:46:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50eded6d3f4e568d873d811e8410a43e SHA-1: 9b31b50e2cf705fd857a0f680acb737c212e6595 SHA-256: 14f8a05cf5ab7d0df7fe38484162a70fd5ac6b1feb5bfe367a03ce6adf0b19cf
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains an embedded URI pointing to a suspicious URL, which is likely intended to trick the user into clicking it. The presence of this URL suggests a phishing attempt to redirect the user to a malicious site.

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://druttle.ru/wix?keyword=molasky+middle+school+teacher+killed
    • https://cdn.sqhk.co/womawuxinuge/jdggj5X/team_rocket_leader_lineups.pdf
    • https://nesiritu.weebly.com/uploads/1/3/4/6/134612540/3f92f30f03.pdf
    • https://cdn.sqhk.co/jerivudofin/ifGhcQA/best_pickaxe_enchantments_skyblock.pdf
    • https://vaputonusodi.weebly.com/uploads/1/3/4/4/134493057/wutapapazabanaje.pdf
    • http://tafugegajotu.mygamesonline.org/origami_software_free_download.pdf
    • http://xivitej.66ghz.com/vpn_express_for_pc_free.pdf
    • http://lusoxokurutugap.22web.org/good_morning_photos_hd_gif.pdf
    • http://zizodoroluxonaf.sportsontheweb.net/vobotexunovivipobagege.pdf
    • https://vizokajobekaxa.weebly.com/uploads/1/3/0/9/130969885/dd3bf.pdf
    • https://cdn.sqhk.co/linidivez/fhbjehg/palitilutogifiniwusifadib.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/3035d661-e780-4f06-a781-36b6221a6cce/mrs_piggle_wiggle_audiobook_youtube.pdf
    • https://uploads.strikinglycdn.com/files/3877d995-a569-411a-97f4-41771167086c/dagilovojoxakuziretogog.pdf
    • https://uploads.strikinglycdn.com/files/d671301b-7908-4a96-b006-8d2b7c5e25b2/64227480869.pdf
    • http://wipadafefuxasi.onlinewebshop.net/alcalinidad_alimentos.pdf
    • http://jemukiguwuw.myartsonline.com/troy_bilt_storm_2410_oil_change.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_off0000c566.bin
08e47a017e823b6257b255acbf4ed2ff188359ecf0f61336970ae6dfd654cbfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC566 5352 bytes
font_01_sfnt_off0000d77d.bin
3e68915f92a261b271547c498a4c0c78fb5d8869da5f4af2b1c3dc2201a21286		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD77D 10028 bytes

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