Malicious PDF — malware analysis report

Static analysis result for SHA-256 5af2ba77361a8b01…

MALICIOUS

PDF

82.7 KB Created: 2021-03-04 05:54:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 476a65333d33b02b2fb1ed0fe47d466a SHA-1: 9753dea987e2849dc1d1b6781d8fc3fdd3bb81e7 SHA-256: 5af2ba77361a8b011e056794c326c0d9a7171ce4365525a2cf11da4977e1c7e3
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://pelibifir.ru/123?utm_term=who+makes+ariens+mower+engines PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387218/normal_6003ff4e73bcd.pdfIn PDF document text
    • https://koruguliduni.weebly.com/uploads/1/3/4/8/134896859/razanasatuleb-ganit.pdfIn PDF document text
    • http://netewe9.xyz/219425038015ppmh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481406/normal_5fce9bf948e66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489033/normal_60073f642fad1.pdfIn PDF document text
    • https://fusufuxono.weebly.com/uploads/1/3/1/6/131606103/kugorupu.pdfIn PDF document text
    • https://bexusisase.weebly.com/uploads/1/3/4/5/134596812/kiwasikibura_tegogufupux_kowaxo.pdfIn PDF document text
    • https://zotekuruwufuk.weebly.com/uploads/1/3/4/1/134108654/49525a2c0886.pdfIn PDF document text
    • https://rafopovuweke.weebly.com/uploads/1/3/2/7/132740485/7548019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482218/normal_5feb4c07be1ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496389/normal_60135ccadceaa.pdfIn PDF document text
    • http://nout-sale.site/14228840299f7yf8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484610/normal_60027c2b27661.pdfIn PDF document text
    • http://medicalpracticementor.com/65353994317a6xb4.pdfIn PDF document text
    • http://jejepofat.22web.org/rorizawutofusanetiro.pdfIn PDF document text
    • https://gabukoxikala.weebly.com/uploads/1/3/3/9/133997771/6876e.pdfIn PDF document text
    • https://rigitugatelimo.weebly.com/uploads/1/3/4/1/134131632/6418586.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://rixasidaz.epizy.com/cahier_de_vacances_cp_ce1.pdfIn PDF document text
    • http://vogepaxita.rf.gd/how_much_does_a_nixon_watch_battery_cost.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C0 4944 bytes
SHA-256: d52c274dceb7621ea58fe8cb30b1af3b322d35080c153f6da93cbeac61b554bd
font_01_sfnt_off00010a6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A6F 10920 bytes
SHA-256: 1e55c18db1b5432967e38af4476c7037dbf919f988660ed7054ec1aada04c0df
font_02_sfnt_off00012f8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F8B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.