Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8490221ef66020b…

MALICIOUS

PDF

69.7 KB Created: 2020-12-14 15:29:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: d0f40b567123d48283129f3b6f3a60ab SHA-1: 55cd36f73c25b0ffdf1a63f843f7ab2fd2744c27 SHA-256: d8490221ef66020bf918509cf1f571dc1f4e3bb50448db021de27d07c35e0f0c
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffking.ru'. ML classification and ClamAV also strongly indicate maliciousness. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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://traffking.ru/strik?utm_term=the+siege+of+macindaw+pdf In PDF document text
    • https://rimenedefogifu.weebly.com/uploads/1/3/4/4/134466040/vogog.pdfIn PDF document text
    • https://gejomomik.weebly.com/uploads/1/3/4/7/134719116/4863477.pdfIn PDF document text
    • https://jujodupif.weebly.com/uploads/1/3/2/3/132303189/5822144.pdfIn PDF document text
    • https://sigodujirole.weebly.com/uploads/1/3/4/3/134319969/47d76a8d.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://s3.amazonaws.com/voxazedisula/kigitu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be825385-134b-42aa-94aa-6605dd692261/78078408902.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b24e2536-5d74-42fb-91c3-6144ae621aca/nufofolulimoguvak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfda7011-f42d-44c2-8905-a724b1c8be4b/figokimurowajukesepageni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87786b5a-798d-43a3-9dee-4e35d83e7d44/20063487006.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30e84daf-93e2-4119-b38e-70d73a2a3198/29982926116.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e8305687f52b6b812c21/t/5fc3ef354f98375720592b79/1606676278788/visys_rca_phone_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/920eb3eb-5b7c-4dcb-84e9-96c3a62e1906/piwivawelovexipizozejeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47be1a6f-d163-4556-a620-18db75d7415e/family_guy_quest_for_stuff_hack.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_off0000c754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC754 5188 bytes
SHA-256: 67f530576e943d16e0f1c44da1afcfd195e1fc44977de1cce303f7c6168e4744
font_01_sfnt_off0000d8ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8EF 10216 bytes
SHA-256: 48a6da5edcff098abdeb1d3adba750d774fb8df0e60cd876acf57c3f5806c7d8
font_02_sfnt_off0000fbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF2 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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