Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebfaf1412f7704f0…

MALICIOUS

PDF

66.3 KB Created: 2020-12-21 13:28:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: bbbeecd5005a73d10055d35f3526b159 SHA-1: 75c8a43f4110732bd18d4dc269af7054c790d35b SHA-256: ebfaf1412f7704f0959168f7b2af9d5ca558939a44eb8289119fe957195e579f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URL pointing to 'traffnew.ru' suggests a phishing or scam attempt, likely designed to trick the user into visiting a malicious site. The document body, though heavily obfuscated, contains text fragments that may relate to the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/123?utm_term=9%252F25+as+a+fraction PDF link annotation
    • https://votetofovuwov.weebly.com/uploads/1/3/4/9/134901863/896d181f582cb.pdfIn PDF document text
    • https://foseporeduxu.weebly.com/uploads/1/3/4/7/134765976/9243062.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379045/normal_5fdc6737959ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420430/normal_5fc091c38e461.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/d3b27ec0-5752-4fc6-8ecb-74c42853b7fc/tuvirigamef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/388c5ccf-11eb-4869-9115-d741ae9e396b/gta_namaste_america.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e81c764-5ec3-493a-93e5-2b1e989e96b7/tivivowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83343611-4472-46b2-bda4-4df11264ce2a/pejavufevov.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/8830004209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62b4f180-45e0-444e-9e14-b9eb08748cd3/cannibal_holocaust_parents_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba75cd69-c449-4252-bc60-1ddeac20c093/salute_report_ppt.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_off0000c612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC612 5196 bytes
SHA-256: 67c70bd932fb8e4a986db489001ea13c13e5b0f38e215c9339784669206c1fa3
font_01_sfnt_off0000d7dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DD 10892 bytes
SHA-256: a299e29e3c9dd60c26d8fdf4093fab4e510c628d5cd1306367a2a5b061575df0