Malicious PDF — malware analysis report

Static analysis result for SHA-256 012b0aae8fa2d3bc…

MALICIOUS

PDF

66.1 KB Created: 2020-11-22 15:21:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 747153d7c2d6f6b4fdbd0f54ac9481d2 SHA-1: b11998f01360ca054751fb4ff99f42d75e85e8ff SHA-256: 012b0aae8fa2d3bc1a121c04a37a3e1c2409cf4669f97ba95e857179ddbbb85c
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying it as a redirector to known malicious infrastructure. The document body, though heavily obfuscated, contains text related to a movie title, suggesting a lure. The presence of numerous links, including a link farm, indicates an attempt to drive traffic to potentially malicious sites, likely for phishing or malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/123?utm_term=the+night+stalker+2016+full+movie In PDF document text
    • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/veveb-tifubitupokasos.pdfIn PDF document text
    • https://zekenegelu.weebly.com/uploads/1/3/4/3/134390475/5013a59d5ee1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491168/normal_5fb8006ee3e4f.pdfIn PDF document text
    • https://lugejalafomap.weebly.com/uploads/1/3/4/8/134884490/9066225.pdfIn PDF document text
    • https://vewewiganivobob.weebly.com/uploads/1/3/4/8/134852084/f5c13e5d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dobesogum/awas_plus_geotag_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/indian_army_shooting_games_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/kisozurafewim.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/fadudaromedumorujibidurir.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/amiga_date_cuenta_libro_capitulo_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45ecf399-6ec8-4f28-bf2c-bd39e59eec0d/jexako.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc268367-1d85-4f3e-856c-7bd74dbd5247/72513721907.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/tarelopefowa.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_off0000c24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24A 5736 bytes
SHA-256: e38c666b57310f88cdf33658ce9851f99046596648a146659bdcd6dd273b97dd
font_01_sfnt_off0000d5b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B9 11228 bytes
SHA-256: a1f1dd17c36e3008f7ea596ed4ff83b4488c4555ce80a41f0dd8beb2732eb49c

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