Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f162217cd77a263…

MALICIOUS

PDF

69.9 KB Created: 2021-02-19 13:26:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: c148086a18d75cc77ee8e3f65880a3b8 SHA-1: 660d654c5eeb666ae7d81acacda12948dddce8ec SHA-256: 2f162217cd77a2638a47e2eef9ee37c18a95ab5235bb8beb71f2c99da8de55d5
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, suggests a lure related to a 'BMW lease agreement'.

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://leonvi.ru/wix?keyword=bmw+lease+agreement+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420235/normal_5fed57ec11ec7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389365/normal_60293aaaaa150.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381318/normal_5fcfb7e6553b1.pdfIn PDF document text
    • http://216tilford.com/582339746531740e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448991/normal_5fca9ec4a1a62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418574/normal_601de532c3d88.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445534/normal_5fcc2d4e6a985.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378170/normal_5fd26eb5cd14b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vanatul/letter_of_intent_for_employment_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/lejolafadidewanap.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/hair_brushes_photoshop_cs6.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/annotate_ipad_apple_pencil.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/infographics_template_blank.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/because_of_winn_dixie_online.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/dipurapozopevuf.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/que_es_un_aspersor_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/vaaste_flute_instrumental_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/vusifonabubewekinadag.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DE 5504 bytes
SHA-256: c5758e8dd1b9ed86f12ffca847c9c5dd90810fdc199bee6a8ac81c4c5895549b
font_01_sfnt_off0000e791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE791 10228 bytes
SHA-256: 67d2db02777635e277e647d7a260cf31846b07c6c9fade9de0e6e47dd9dd58d6

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