Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e56fabd50a9154a…

MALICIOUS

PDF

80.1 KB Created: 2021-05-29 21:14:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 695322b7e5c212f01f82c59364138631 SHA-1: 7c40a8a4042a01ba210d17971d5e9d4f50fb7672 SHA-256: 5e56fabd50a9154ab82384f779e67145e6642db91dc0bf0804dc57ab69106f27
156 Risk Score

Malware Insights

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

The PDF document contains a lure related to obtaining infinite money in GTA V, directing users to a suspicious URL. The presence of a large number of external PDF links and a critical ClamAV detection strongly indicates malicious intent, likely phishing or malware distribution. No scripts were extracted, but the PDF structure and external links suggest an attempt to redirect the user to a malicious site.

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://xajibur.ru/strik?utm_term=how+to+get+infinite+money+in+gta+5+online+ps4 PDF link annotation
    • https://ruwiderok.weebly.com/uploads/1/3/4/8/134891429/3994479.pdfIn PDF document text
    • https://xinufagepowe.weebly.com/uploads/1/3/4/4/134437511/zagixomulilune.pdfIn PDF document text
    • https://juwarojolajekol.weebly.com/uploads/1/3/4/1/134108785/6452215.pdfIn PDF document text
    • https://tofariviviri.weebly.com/uploads/1/3/4/1/134109347/dagofebalojegofelu.pdfIn PDF document text
    • https://bajaxatezufenop.weebly.com/uploads/1/3/7/5/137514332/9735681.pdfIn PDF document text
    • https://jeduwisuduxib.weebly.com/uploads/1/3/1/4/131483356/5940182.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/e4f0806f-ccd6-411c-a908-7ecf1dc49613/konexe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8542509-4c32-4c37-abc5-bd62549eae66/47531049941.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7666b0c-2b0d-4b3c-94eb-48e76687377c/lofok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8a48223-b884-48dc-a953-aaea0c10eb08/kupuvudesevotijeruxibogi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0c9474d-5da7-454a-b97c-a0c7d5339179/46167634626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12484d2b-3ba0-4806-9c9b-30c575534e36/78881306992.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb9ac763-eed8-426a-abfe-bd3a75b5dcb3/6587154356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/933f119c-1c9c-4588-9f2f-374db73144d5/kowixezuvos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88fc64c7-9095-4031-94d5-e556e3bac479/jidubuwuvomikikodogipezat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbb79918-6a61-4c8e-9cfc-423820f1ca1e/what_color_is_red_and_yellow_mixed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7988a8d-545b-4065-afdf-47db359df699/chicago_manual_of_style_citation_format_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8547c74c-2504-4c3d-b050-f2b4f0248cfb/ejen_ali_emergency_mod_apk_1.5.0.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_off0000f914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF914 5492 bytes
SHA-256: 0f46e2200b142530c48f4d19181cf8cbe8a41e8f6908013c234ef9caa0a32822
font_01_sfnt_off00010be8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BE8 10880 bytes
SHA-256: d06b513fbc0d4d1000df0458664b9fc0ff6f2b2e646ea94483efb5449d7cba70

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