Malicious PDF — malware analysis report

Static analysis result for SHA-256 0249bb936d7a15e5…

MALICIOUS

PDF

131.8 KB Created: 2021-03-16 05:26:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c08643e98f7b8b13a2011c0b1341e02c SHA-1: 71e4f556d9f8713468dc8af8c77c89670170df42 SHA-256: 0249bb936d7a15e5d946b4563e1477d9fa67b509692989e5d5713441074b0956
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external links, characteristic of a link farm designed to improve SEO for scam-related content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates the document's purpose is to trick users into believing they will receive a prize or benefit, which is a common tactic in advance-fee fraud. The presence of multiple suspicious URLs, including one pointing to 'bologen.ru', further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/wix?keyword=chapter+2+test+the+court+system+answers
    • https://rozolabo.weebly.com/uploads/1/3/0/8/130814594/ruxosol.pdf
    • https://sedezexe.weebly.com/uploads/1/3/4/3/134342112/titasujile-soxebi-xigopafemu.pdf
    • https://xadaxegaku.weebly.com/uploads/1/3/4/4/134444747/tidowetunoxoxakazufe.pdf
    • http://terem.space/how_to_sync_my_skullcandy_earbudsqjyw6.pdf
    • https://muwegejise.weebly.com/uploads/1/3/4/2/134265646/xiwuta_wabonu_gopelitime_jivozema.pdf
    • https://viwalamul.weebly.com/uploads/1/3/3/9/133997630/665ab.pdf
    • https://bisuxijux.weebly.com/uploads/1/3/5/3/135323954/2522420.pdf
    • https://tulofezufiruz.weebly.com/uploads/1/3/1/4/131409090/zopunulibi-dexejumixavifav-lerunojepujaze.pdf
    • https://bunikesetula.weebly.com/uploads/1/3/0/7/130739723/rogifeju.pdf
    • https://saxunada.weebly.com/uploads/1/3/4/8/134865385/pizemisexuxurikil.pdf
    • https://zogomidovuga.weebly.com/uploads/1/3/1/6/131636914/tudavi.pdf
    • http://options.expert/what_does_battery_discharge_warning_mean_hyundai_sonataz1igs.pdf
    • https://nozitobolilijaz.weebly.com/uploads/1/3/4/4/134473425/5581456.pdf
    • http://bcpzonasegur4viabcp.com/idle_heroes_tier_list_2020ccvlh.pdf
    • https://xavexipaw.weebly.com/uploads/1/3/1/6/131636683/1086384.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/fa1446fe-9122-45f0-8e11-1f476043f95f/molevesanojugoguwuv.pdf
    • https://uploads.strikinglycdn.com/files/665d4fe6-4037-437f-a394-fe6e31846024/74618214040.pdf
    • https://uploads.strikinglycdn.com/files/732abeb7-9121-4f08-a443-e7f49c07f6a3/24905670647.pdf
    • https://ad843f61-c544-48d7-8cfb-3c048b9edb46.filesusr.com/ugd/0dd9ed_7e5cf92cd3234f1cbbd17cafd3586e6f.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e0942c7b-1e0a-45e2-83fb-c7c2e08aca2a/2018_toyota_camry_xle_v6_for_sale_near_me.pdf
    • https://53ee2ee6-42da-4c96-954f-60f726bc8d53.filesusr.com/ugd/de2744_6326a38555af4228b9a3121b7f7a455a.pdf?index=true
    • https://0296ecfc-28ae-4fa5-925c-67a25994cace.filesusr.com/ugd/c88839_9b278bd55b5a40b9b02d64e8f8b966f1.pdf?index=true
    • https://7ffe38df-ef78-47a1-8632-a9c579db478a.filesusr.com/ugd/8ff694_ae376b52134040088700d82cd1df932e.pdf?index=true
    • https://47c0d0ed-94e3-447f-940a-e265262d053f.filesusr.com/ugd/a43ec6_c28b015e428a407e81b71e6a881a5884.pdf?index=true
    • https://uploads.strikinglycdn.com/files/c12c0307-47a4-439b-a856-d3115d386b99/xapilorevivisumumikiwi.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_off0001c9ba.bin
a12444e60bb8395b863c1d9a43aa7163afc455d765a6c71a3f4140abc62ff564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C9BA 5372 bytes
font_01_sfnt_off0001dbe7.bin
53072dee2190a3ef9866783602b0184acd9ad56bc96b4a662ebd8845502039c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DBE7 10844 bytes

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