Malicious PDF — malware analysis report

Static analysis result for SHA-256 0faad00d282f195d…

MALICIOUS

PDF

80.2 KB Created: 2021-03-19 04:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9591b5d5347ce9ba3782bbccba1a86f0 SHA-1: 7cdf53b090284005d460235f82c39193f2857799 SHA-256: 0faad00d282f195d998050571643353a8e56f799059700b65b225b93233ed84e
176 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL suggesting a phishing or scam lure disguised as a baseball schedule. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=orem+youth+baseball+schedule
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://21d44941-995c-48b9-956b-8145330e20d5.filesusr.com/ugd/577b75_45215e3d3a8347bbac3bde64d9093fff.pdf?index=true
    • https://uploads.strikinglycdn.com/files/4cbeaf1a-f4d6-4f0d-a76d-35ba1fc2c608/62924965376.pdf
    • http://zafurug.epizy.com/mugagaje.pdf
    • https://s3.amazonaws.com/dutuzanob/bugetagoxurerutaxudej.pdf
    • https://uploads.strikinglycdn.com/files/5843564d-0dee-40b3-847a-8d634d23a6a8/widadezuporitoxadubifore.pdf
    • https://uploads.strikinglycdn.com/files/d583e0bc-fec6-46c0-b806-146c4c76bd5c/best_construction_project_management_books_uk.pdf
    • https://d5f1d3db-1598-48d0-a061-764c190a6564.filesusr.com/ugd/866690_2687dd1453894ce7a444ab85cadae8c2.pdf?index=true
    • https://s3.amazonaws.com/zukogi/bonisam.pdf
    • https://uploads.strikinglycdn.com/files/a24920c6-55a7-4af9-8e0f-b56b8b19a035/how_many_us_bases_are_there_in_germany.pdf
    • https://uploads.strikinglycdn.com/files/5022f72f-6475-4baa-b250-b58f875a3864/traxxas_summit_1_8_upgrades.pdf
    • https://uploads.strikinglycdn.com/files/3bcc4a8d-a994-4f83-8756-d8bc8ab2ca7b/dakes_annotated_reference_bible_app.pdf
    • https://1923692e-f727-4f58-80a8-3583160180e3.filesusr.com/ugd/c4ccc4_ca7060e01b4748f39ef85736ef3179fa.pdf?index=true
    • https://2863666b-9d79-467d-9aad-9eeb6dafbdf2.filesusr.com/ugd/6ee3eb_ca0eeb81da874cfb93efef300492b9fc.pdf?index=true
    • https://s3.amazonaws.com/sulasatevirexo/kawefujuririlux.pdf
    • https://27aa3d6a-fcc1-4574-a8e0-77dd5bf64dcc.filesusr.com/ugd/7683ec_aba03d5f0463438e8f9f186bb369a8d8.pdf?index=true
    • http://gagivipupine.epizy.com/rodofawuresufagad.pdf
    • https://45b0b119-5f8c-43e7-b437-4e12d17c1c81.filesusr.com/ugd/3826db_878fc542a89a4b9a862cdb0bd8d7c1af.pdf?index=true
    • https://uploads.strikinglycdn.com/files/1fe8a3c4-b245-418f-be33-af82ef2be3f8/how_many_calories_in_a_snack_size_kit_kat_bar.pdf
    • https://da18e6a8-d720-42de-a88c-3f13daad7efb.filesusr.com/ugd/08fe48_b477a897e9a04d7081a4eccc9b7ed430.pdf?index=true
    • https://s3.amazonaws.com/wifukedot/65250593971.pdf
    • https://uploads.strikinglycdn.com/files/ad48a31c-d0eb-412d-9874-9d38498ecbe2/resabegurelu.pdf
    • https://uploads.strikinglycdn.com/files/369648d9-98ea-4b96-bce2-f995ede1226d/vb.net_tutorial_free_download_in_hindi.pdf
    • https://e40da922-b0e4-44be-9878-2d4898ccab21.filesusr.com/ugd/3a38e0_1ad2312d0786498f85e042a52a7fa015.pdf?index=true
    • 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_off0000ed80.bin
56d2ad2fec6e2dacdab867e908b80fe761954574114029668fd9ee940e7a7a2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED80 5176 bytes
font_01_sfnt_off0000ff15.bin
89c1f8d6279c32cc6591ac4a49a58af3617ca9a7b1f6bc240f5b7289080b477d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF15 11252 bytes
font_02_sfnt_off00012554.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12554 4324 bytes

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