Malicious PDF — malware analysis report

Static analysis result for SHA-256 41d6118a9b0c1e5f…

MALICIOUS

PDF

73.8 KB Created: 2021-06-10 15:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f24f7d40fe895f5b7d99d94c310a550f SHA-1: da931b8c054ffcf9597b4abe1078b2f4dc0fd9bf SHA-256: 41d6118a9b0c1e5f15eef218ab6823a26cd654536e41cd225121f86b7a692539
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'garglob.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Mcu movies correct order'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://garglob.ru/pbw?utm_term=mcu+movies+correct+order PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481985/normal_602dd37332b9c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480412/normal_5fdfff8432eb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389797/normal_5fd5f6efef09c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385613/normal_60540ca543ee0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423772/normal_6035a8139e5a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464068/normal_5fd324a5e3263.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469378/normal_603ff988f20bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377380/normal_604491c4b1367.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417652/normal_60b8ad038eb29.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366668/normal_5fde8b0e58c90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485451/normal_5fe901a3961fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415046/normal_601a872ca66c1.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/d77ab71b-c298-4443-87b2-cc6a57f7dce9/75036115724.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19d164cf-f781-4e5c-818b-afeed4cd4071/roku_streaming_stick_plus_black_friday_deals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94c84376-fded-4c9a-8de2-b25f98762948/devilbiss_2400_psi_pressure_washer_pump.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a0277f9-42de-4b66-b4fb-bd36a497794f/zoberupitijodogujoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/464406be-20db-4a31-a680-9043865e3b74/how_to_install_nba_2k20_in_android_phone.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e58c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58C 4908 bytes
SHA-256: 6209ba1fc7280fbe1a20b0eb64fa42f067e7c1b89fbd3c8e476ca92d4cf22979
font_01_sfnt_off0000f63b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF63B 10564 bytes
SHA-256: eefb1c631151e1715202acdc0976e7b14c0de30ac2e0aa33f73c0d2057a1bc12

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