PDF static analysis report

Static analysis result for SHA-256 f20046720bde5385…

SUSPICIOUS

PDF

43.9 KB Created: 2020-11-09 16:08:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 99695d200468e73f14f0c82924cf34cd SHA-1: 969178c9450c84600a526b0f81e24d386e958b02 SHA-256: f20046720bde538581a374f85c7522937c43832333047cc08ccaa0ba922a9932
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://trafftec.ru/wb?keyword=big%20lots%20schedule%20online PDF link annotation
    • https://vezexozozufizus.weebly.com/uploads/1/3/4/3/134372857/3952085.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/vibisixogevopisi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384463/normal_5fa2e1f974ce3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377095/normal_5f8b10af66b10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_5f900cc992f16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368991/normal_5f8822799a06b.pdfIn PDF document text
    • https://xarisoxetawekox.weebly.com/uploads/1/3/4/3/134399368/munigek_kudubu_gomazi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443819/normal_5fa1a1c4a55ba.pdfIn PDF document text
    • https://repafajekojila.weebly.com/uploads/1/3/4/3/134305679/8986259.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413455/normal_5f9c4387993f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369643/normal_5f91fd9527f85.pdfIn PDF document text
    • https://xoniwolujejusun.weebly.com/uploads/1/3/4/4/134456196/4966411.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mipeboro/roman_centurions_31_bc-_ad_500.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_off000070c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C3 4944 bytes
SHA-256: 0a0bc48ee78760f9b050a8b6c35a72716b4e60f6de6f05960b1f70247e0f1642
font_01_sfnt_off0000819b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819B 9924 bytes
SHA-256: b0d93799926830f0e8ee4fde110f047e64bf3b21bae9f1b4db7ebf8efbdaa8af