Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6860095d672500…

MALICIOUS

PDF

298.2 KB Created: 2021-05-31 12:24:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: fa7ccbf4c9e99d8659c679cf357c1847 SHA-1: 587a79cf5ec6d32f0f21bc3e6328cacde95dd0aa SHA-256: 8f6860095d672500f67645692aa8a411fdd494987830b8bc4f14a37e442cbd9d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9890

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://xezojetit.ru/123?utm_term=soil+horizons+worksheet+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448558/normal_5fd64e9f8ab3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467278/normal_605c50b5f2a1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451023/normal_60161e18ab8eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381543/normal_602b7ca316be5.pdfIn PDF document text
    • https://levoveto.weebly.com/uploads/1/3/4/8/134897684/saxuzelezesazotolut.pdfIn PDF document text
    • https://begiruxuvasepi.weebly.com/uploads/1/3/5/3/135351124/d0f59ccbfd99e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384304/normal_604d6d6d474bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369141/normal_5fdb230ab0d3c.pdfIn PDF document text
    • https://pozefixinez.weebly.com/uploads/1/3/1/4/131454190/1316783.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453732/normal_5fea3aee827d3.pdfIn PDF document text
    • https://dutaveporope.weebly.com/uploads/1/3/4/6/134600224/3710981.pdfIn PDF document text
    • https://zapunetiregete.weebly.com/uploads/1/3/5/9/135956705/973150.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387925/normal_601fabc1bedfe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388183/normal_5ff6856b1742f.pdfIn PDF document text
    • https://vofitikasu.weebly.com/uploads/1/3/1/8/131871658/nenazigejaxunetuvu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480735/normal_6044965822fc4.pdfIn PDF document text
    • https://kobijetiva.weebly.com/uploads/1/3/4/3/134322382/favagepo.pdfIn PDF document text
    • https://mudatikijamowa.weebly.com/uploads/1/3/1/4/131408537/simegoxepuw.pdfIn PDF document text
    • https://koxewezadopu.weebly.com/uploads/1/3/4/0/134017906/3064833.pdfIn PDF document text
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/bekuziwix_relugikipe_pokifo.pdfIn PDF document text
    • https://kinijanara.weebly.com/uploads/1/3/4/5/134585029/wejukokirosok.pdfIn PDF document text
    • https://jizufuvarax.weebly.com/uploads/1/3/1/1/131164460/8770773.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/e03f356f-2c69-4f84-a1cb-4b4fa100772e/90208730652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be649486-91e0-446b-8eea-8de1ba87de05/98527517869.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f2e976f-0f57-4362-9051-6c352325fe35/canzoniere_scout_con_accordi_per_chitarra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fc19f75-7509-41b9-a916-10a5faadfb8c/specific_heat_lab_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00c41aff-26d2-4d7a-bb3a-0a4ac1761a9f/richland_township_allen_county_ohio_zoning_map.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_off00045e80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E80 5184 bytes
SHA-256: 62694ddef99e7670476c9b3bcbedfd9be555f8b1dca9b0667f5e6414b498e5a6
font_01_sfnt_off00047036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47036 11980 bytes
SHA-256: 8419d3e41baefbfbbf728a049c505bd01dab8bbec69fcc1ecf9142065b2d2cad

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