Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce6700d04182b63…

MALICIOUS

PDF

76.2 KB Created: 2021-03-06 22:34:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: b4d8d917137fd5b66df476160a7f8cc8 SHA-1: f28d99098b08e28ead1db765eb71ad02f40490f1 SHA-256: bce6700d04182b6336e6ffde317f09cb2cc3fe1b9b761f4d9cfb56074d104004
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous external links, with one specifically pointing to a URL related to 'Walmart fedex tracking number not found', suggesting a phishing or scam lure. The heuristic 'SE_CALLBACK_LURE' further indicates a potential callback phishing or tech-support scam pattern. The ML classifier and ClamAV detection strongly suggest malicious intent, likely involving the exploitation of PDF vulnerabilities to execute code or redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://botokaw.ru/123?utm_term=walmart+fedex+tracking+number+not+found PDF link annotation
    • https://kenazago.weebly.com/uploads/1/3/1/0/131070597/42c4b82197b.pdfIn PDF document text
    • https://karaxofuko.weebly.com/uploads/1/3/5/3/135344752/787784.pdfIn PDF document text
    • https://cdn.sqhk.co/bumogebiz/hjHhjao/warlord_titan_datasheet.pdfIn PDF document text
    • https://cdn.sqhk.co/bomagomax/CR3hdhd/pixel_art_maker_unblocked.pdfIn PDF document text
    • https://gimezoribetigaw.weebly.com/uploads/1/3/4/6/134676461/1231018.pdfIn PDF document text
    • https://kimimidinom.weebly.com/uploads/1/3/1/4/131453749/7110302.pdfIn PDF document text
    • https://cdn.sqhk.co/xotakuzazuf/aJghwih/lenovo_chromebook_charger_100e.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/8VrNphi/nimozigujaxazutuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d68f1c8d-a7c8-441b-b9fa-c55a4039206d/delonghi_capsule_1500w_ceramic_space_heater.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/95816426228.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f666fac8-68e8-4d7f-aada-0664716d867f/howl_poem_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/tablet_android_11_pulgadas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab2fd01f-f548-4fd1-8129-da52ba4b3be1/nuvizuxogapowelefanusodox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf46a5d1-0136-48be-8822-16507e9c8ddb/bobeti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a499cdf6-1a3b-4b11-94dd-418623c37c5d/14153852856.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14ca3865-3154-422e-ac4a-a30f92d8c8b5/13202092972.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddcb72b2-bb88-4aa2-9498-19f9d5cfebea/logunepibawuxexawigul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72c82f37-4757-4771-9821-f41322a329e8/33417187450.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_off0000eb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB49 5448 bytes
SHA-256: eadd941fbaecdcd785771e85386b3ed31761f1e05e7b9c24651b4e643c412194
font_01_sfnt_off0000fdd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDD8 11076 bytes
SHA-256: cf90195cae4960d00d968ba4be5ff1415b10c4576d8121989a9f500f60e0876c

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