Malicious PDF — malware analysis report

Static analysis result for SHA-256 9695715690321fd3…

MALICIOUS

PDF

72.1 KB Created: 2020-12-19 01:36:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c53a1abb0848ed7564fb9869c031b408 SHA-1: ed23a8cfb878075a75b5d0ce10ce96905b4ace53 SHA-256: 9695715690321fd391e855b261b2b5bf1bc091e09be627f1478c8d3bbff860f6
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with at least one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to drive traffic to various sites. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or malware distribution vector.

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://traffine.ru/123?utm_term=chanterelle+mushrooms+price In PDF document text
    • https://maguduvogusimog.weebly.com/uploads/1/3/4/5/134583052/2346e6d0ba8fb93.pdfIn PDF document text
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/fibifajaxa.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://uploads.strikinglycdn.com/files/182d75ed-765c-4d5c-b4e8-08ab6c3623d6/radomafabugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7def4e6-d86d-4b2d-a843-4b47955d0bf5/organic_chemistry_wade_8th_edition_e.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0786155-124e-4526-bf56-60725e57c176/sagovituv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d8deadd-2102-4519-a3a7-21e84d79d45f/50296260628.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9c885ea-1071-48d6-bee7-43f7897fee27/55524899529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eff7eebd-d258-43e1-8318-dd7405d13c1f/roll_of_thunder_hear_my_cry_summary_chapter_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cd3b909-2455-47a8-9b45-1b8301ce1f14/49295536627.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73d5d21b-d03e-47a7-8e78-635e244670ea/80314137596.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37e1af9866f3fd2e48b56/t/5fcaef06b6b7366152ef02fc/1607134983196/fitom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c40a74f-9064-4df7-98e9-44c66efea49a/6603649146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d4de4e6-1582-42f7-ba76-ee5a017d59b0/osprey_call_flying.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76cb6e9c-344d-4af1-9b5b-0b4222b891d1/jotulaxige.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22A 5076 bytes
SHA-256: af97318292b6d6d163e1ce96b6666b0526964cf94532378f06d6d703d214cfcc
font_01_sfnt_off0000e336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE336 10080 bytes
SHA-256: 80e7514dc3e18de80c29f5fb68be9a02748e4bd2a8045b3f1bcb4020a1eb6dd3
font_02_sfnt_off000105c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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