Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd8cc33c1271b350…

MALICIOUS

PDF

67.5 KB Created: 2021-03-06 08:00:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ddaaade0cd3993912bb9e4344f54511b SHA-1: 8a5a07608b6d16f41eebbd67efe9868a5a7816c5 SHA-256: dd8cc33c1271b350ed51d4f9e04d66267af2bd6473838c9ffd766442f1d852f8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains embedded URLs that redirect to suspicious domains, including one identified as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing. The document body, though heavily obfuscated, appears to be a lure related to celebrity information, aiming to drive users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/aws?utm_term=who+is+lady+antebellum+married+to PDF link annotation
    • http://xubajur.mygamesonline.org/lovula.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445871/normal_600731f416065.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486743/normal_6019d0acb0afa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454668/normal_5fd62f35a60bd.pdfIn PDF document text
    • https://cdn.sqhk.co/xiladuxe/gwhcicv/96318126486.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/RheOveH/19209610229.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369322/normal_5fe5a5df45cc7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388619/normal_5ff1fa969787b.pdfIn PDF document text
    • https://cdn.sqhk.co/jujejorule/Lieyojf/universal_onslaught_card_list_price.pdfIn PDF document text
    • http://xadexawufomovi.sportsontheweb.net/falefevamov.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/jahjc4v/crowd_control_score_meaning.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1ebfeea1-7d02-43b8-8f0a-002c87bc7f75.filesusr.com/ugd/50dcf6_0a7ba403b5f54ce0ab528446292b54f6.pdf?index=trueIn PDF document text
    • http://zisukuvi.atwebpages.com/2020_lexus_es_350_f_sport_lease_deals.pdfIn PDF document text
    • https://2a009ac4-5770-49f2-ae16-4ce107243443.filesusr.com/ugd/59deca_3b36304a07f647938c521273fbabc8ea.pdf?index=trueIn PDF document text
    • https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_ccc467c0b4464a3fb6b9a9065453d73c.pdf?index=trueIn PDF document text
    • https://50b44c92-959e-4a15-bf83-93d6b2b518d6.filesusr.com/ugd/3ed44c_b26eda259b9f433398b8cd9eed9e09d9.pdf?index=trueIn PDF document text
    • https://ad0d0dbb-669b-46a9-85df-79487014a0f3.filesusr.com/ugd/00d95d_2b549198fc9548aa9a4e2b7c0470cc31.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gopuze/xojosesividejafosixawi.pdfIn PDF document text
    • https://c09438b0-f1cf-4ade-afa2-d322e048c450.filesusr.com/ugd/313cc6_abb91060141b437f86d77e965ae84743.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/jolonubezupuvuku.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD1C 5320 bytes
SHA-256: d017e40036a4b77effde7636cd4789ab9131bc6ec7cd159447ddfa587e5e7c55
font_01_sfnt_off0000df10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF10 9896 bytes
SHA-256: 92db61581acc527f0ba62a18dc69b68713567b7a74e9b8789057936c73377c95

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