Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb13a63cac9412a…

MALICIOUS

PDF

64.2 KB Created: 2020-12-04 07:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: aa21977d59b5bcf6cea5f763e9f53c6b SHA-1: d9776494cb070400389f0ff5c530a232adb21ccd SHA-256: eeb13a63cac9412a6c5ac3602bb2a78a374805ad027410d7c982e711398498c5
186 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 6

  • 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.
  • 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://traffine.ru/aws?utm_term=110+fwy+traffic+report PDF link annotation
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/ladewigawujelexupub.pdfIn PDF document text
    • https://tejifogigevavep.weebly.com/uploads/1/3/4/6/134675995/4608874978b9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483336/normal_5fb37cc3381ae.pdfIn PDF document text
    • https://gokipeko.weebly.com/uploads/1/3/4/3/134351508/jisikatafefubisedese.pdfIn PDF document text
    • https://tivaxuxilo.weebly.com/uploads/1/3/4/1/134131375/7461102.pdfIn PDF document text
    • https://balabirow.weebly.com/uploads/1/3/4/6/134690292/jinavemeta_pezomomewomapa_nebizov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452157/normal_5fc443020d5a1.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
    • https://static1.squarespace.com/static/5fc0e552ec917750a3d7e003/t/5fc375c3f81c9a2a0c0e5085/1606645187515/a_star_is_born_online_stream_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3afd6971-092e-452b-ae6f-39b146a2620a/jifujawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab516fac-31da-4bbe-b75d-bc0c5b0aab16/wowewekakanivobowafigale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2e61626-ea88-4913-bba5-33ed8f2d4b05/99141526866.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a394239b0722913c6c92/t/5fc5ea629d7936484059b4bf/1606806114934/brown_food_coloring_recipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56433eb5-5282-4fed-9531-aba7d36d269b/kofusixolo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc174bfa5bc066edfa992ec/t/5fc40a864f983757205dbb1a/1606683271338/plus_size_pirate_costume_mens.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_off0000b2fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2FC 4772 bytes
SHA-256: fb3f1c1ac8f6ecb727a96c4558f06b8b0d2bee5b734005f5eec3910a54105082
font_01_sfnt_off0000c355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC355 10100 bytes
SHA-256: bd0b9415b7891bf5c4576384b056ae5565b12ebfd9e5cda0eefb0aa5e517b388
font_02_sfnt_off0000e5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F6 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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