Malicious PDF — malware analysis report

Static analysis result for SHA-256 e476d264db8f911c…

MALICIOUS

PDF

80.3 KB Created: 2021-03-06 16:14:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dd8be55a0dbae86067cab3852bb10d7 SHA-1: b75a2414dba7922f01dc112f1459d3915a32727a SHA-256: e476d264db8f911c10325b0511a57082961abc1c7ad9ef8afffd3c1930b47c93
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though partially corrupted, suggests a lure related to 'narrative film form', which is likely a pretext to disguise the malicious URL.

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://soxebez.ru/123?utm_term=what+is+narrative+film+form
    • http://nikaold.site/410277549862bnww.pdf
    • http://perevod24-card2card.site/54009353613oscar.pdf
    • http://apsdd54gfv.xyz/frigidaire_stackable_washer_and_dryer6xke9.pdf
    • http://adv-workshop.site/29747043572w5dmx.pdf
    • http://tells.fun/80265244400zyyww.pdf
    • http://tehnopolis.org/zodajatuzazukapijha2o2.pdf
    • https://static.s123-cdn-static.com/uploads/4482405/normal_600745462c213.pdf
    • https://static.s123-cdn-static.com/uploads/4462976/normal_5fce8899ea08f.pdf
    • http://aromaita.space/what_does_a_crp_blood_test_look_for5p9x4.pdf
    • http://hhizmet.com/bekaradabadadolvuh38.pdf
    • http://poverkavoda.website/598053823655xcsn.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/fd6f19c3-2ad8-4312-a1b6-cc68b6f92537/diono_radian_3rxt_convertible_car_seat_canada.pdf
    • https://uploads.strikinglycdn.com/files/c62d579d-6e40-4878-bba5-af021b0b5ba1/53094053313.pdf
    • http://rizinidotedo.rf.gd/cisco_wrt54g2_v1_specs.pdf
    • https://86f5e18a-8766-4ae7-b9bf-31430b627380.filesusr.com/ugd/911c12_d3b3e320cf0d47b689b99fb39fa5250e.pdf?index=true
    • http://towupew.epizy.com/android_target_api_level_26.pdf
    • http://fotopokidag.epizy.com/83343135461.pdf
    • https://76bf09fe-c378-4d6f-baa9-beaf48595a8b.filesusr.com/ugd/61567a_2e6daa15508c4df8bde8504d34033124.pdf?index=true
    • https://44407f20-7244-4107-9544-84d8151b6f9a.filesusr.com/ugd/8508de_3eb4fa78305646ebbdbc24ec1080adb8.pdf?index=true
    • https://d23eb412-52e1-45ef-a32a-0c032022daee.filesusr.com/ugd/03485a_03422dd4356a4ab4bd218c08787678ca.pdf?index=true
    • https://b64dd490-e5b9-492f-89ff-e398ecee904c.filesusr.com/ugd/5926b4_d531507e05b044cc90ba2b6016fc57fa.pdf?index=true
    • http://fivulesesixiji.epizy.com/41614757321.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_off0000f100.bin
dc4fc232538a445c2db52a63780473bab9fe5be32933b7e121d4f0cd7e8a1b05		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF100 4868 bytes
font_01_sfnt_off00010160.bin
dd81247b42d2cbd8663cb9eca7cb6014e3c6d41d809e8010f6c9c61aee66af03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10160 10760 bytes
font_02_sfnt_off000125be.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x125BE 4324 bytes

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