PDF static analysis report

Static analysis result for SHA-256 19565598157e2cc8…

SUSPICIOUS

PDF

40.7 KB Created: 2020-11-07 03:48:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6f604fcc243a844d80d3e38cb5a6514b SHA-1: 23fc47e8c4698f499b38451f95c141c38ed62153 SHA-256: 19565598157e2cc897232aa7719e8834175d18a83be9595fe7092d1a00c5965b
56 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as suspicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/123?keyword=aces+limited+brands+associate+access PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366647/normal_5f87aad35e038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381541/normal_5fa5e9f6d7872.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420915/normal_5f9b9fe667670.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379971/normal_5fa074864de2b.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/8056159.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386074/normal_5f9269b552038.pdfIn PDF document text
    • https://nugaridepi.weebly.com/uploads/1/3/4/4/134474671/8930919.pdfIn PDF document text
    • https://aces.limitedbrands.com/UserMgt/LoginUser?cmd=loginIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/green_revolution_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/wixuku.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/molarity_worksheets_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/waterfall_vs_agile.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/tasubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c427d5a-27fd-4f0a-aeb4-fc19d32308a4/throne_of_eldrain_price_guide.pdfIn PDF document text
    • https://niwaruxev.files.wordpress.com/2020/11/piliguxuruge.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/bullying_speech.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_off00005fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBA 5216 bytes
SHA-256: ac70645a413e6c01b14b009a941e51852c8aa40ef5232c11047f887bc41b1015
font_01_sfnt_off00007158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7158 10868 bytes
SHA-256: a52e5c03f87850a53a2898bbc4cc53cc9b2a4bf028d1b36d56a4c9ba28200766