Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef5356682f6302f…

MALICIOUS

PDF

76.3 KB Created: 2021-03-21 00:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00a8ffd3f784c1d7aeffab2b2be5d734 SHA-1: 108f7f5e92662b37fcea800065d8798331546ea5 SHA-256: 0ef5356682f6302f3b917ac1033e90d756f67e17d612b3b93e3def8404a06671
136 Risk Score

Malware Insights

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

The file is a PDF document that exhibits characteristics of an advance-fee scam, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://seumenha.ru/strik?utm_term=what+does+an+associate+director+client+services+do
    • https://cdn.sqhk.co/fodexuxefeba/c4Vx1Eo/bloodsport_dc_comics_character.pdf
    • https://karaxofuko.weebly.com/uploads/1/3/5/3/135344752/8b114.pdf
    • https://cdn-cms.f-static.net/uploads/4385647/normal_604c9e7aae0da.pdf
    • https://cdn.sqhk.co/mogizufofuj/njbIge1/elimination_of_recorder_s_office_lake_county.pdf
    • https://jijajaxasivezix.weebly.com/uploads/1/3/4/5/134588510/ziwefijosawalikimif.pdf
    • https://static.s123-cdn-static.com/uploads/4380403/normal_60018ad8e115d.pdf
    • https://kibixaxetoro.weebly.com/uploads/1/3/4/8/134861284/5193087.pdf
    • https://cdn-cms.f-static.net/uploads/4377408/normal_603a5d9b124c1.pdf
    • https://lubebubekawi.weebly.com/uploads/1/3/4/7/134714091/foxasejuz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jixeremipet/kakimuguborox.pdf
    • https://uploads.strikinglycdn.com/files/d6bd455c-c88f-44cb-9960-6ff4ab5e404b/divukanasejuzogubavuzat.pdf
    • https://s3.amazonaws.com/levumoduf/84728815404.pdf
    • http://galojuxutiwas.epizy.com/kenmore_elite_stove_top_instructions.pdf
    • http://bozumux.epizy.com/academic_english_speaking.pdf
    • https://uploads.strikinglycdn.com/files/7a92b180-77b3-4fee-b95f-e004f72b3c79/169589227.pdf
    • https://uploads.strikinglycdn.com/files/52620089-cf03-45b5-be1d-3f99c9cbd80c/51029095815.pdf
    • http://pasabepudibupe.epizy.com/hr_round_interview_questions_and_answers_for_experienced.pdf
    • https://s3.amazonaws.com/fisulefajow/xadadurazaketo.pdf
    • https://uploads.strikinglycdn.com/files/84b269e5-6f69-4957-bbb1-7f7a5892c99e/kitchenaid_mixer_replacement_grease.pdf
    • http://kuxejerudaxis.rf.gd/fofobidofamumotumamuma.pdf
    • https://uploads.strikinglycdn.com/files/1dc7a20e-7b17-4519-8322-3809ca24940e/61084221270.pdf
    • http://wixezujixib.epizy.com/ginosavukobojudonovagif.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_off0000eae3.bin
809f69a528481b7e835e5b50eb37444435c3c6abf1e44fec2224801e60e2ffe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE3 5100 bytes
font_01_sfnt_off0000fc48.bin
c59797e1dcd0af5856af0879fe578670a91433212aaef5917344f1ca0186aeef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC48 10888 bytes

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