Malicious PDF — malware analysis report

Static analysis result for SHA-256 2deb2caed47d573f…

MALICIOUS

PDF

41.8 KB Created: 2020-10-08 21:16:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 79fd4a780b591ec2a7d3518b382cabfb SHA-1: dffb60529a4bd1b7bc3353f8e378063fc539b8db SHA-256: 2deb2caed47d573fb1fc34ae1ef2f5fdcf5401376dbcae4da7c2d6db82e4809c
94 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a link to a known malicious redirector infrastructure. The embedded URL `https://gettraff.ru/strik?keyword=isometric+paper+template+a4` is the primary indicator of malicious intent, likely leading to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious redirector strongly suggests a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://gettraff.ru/strik?keyword=isometric+paper+template+a4 In PDF document text
    • http://files.emilywood.info/uploads/1/3/0/9/130969489/wofuxe.pdfIn PDF document text
    • http://tugol.humanitiesamped.com/uploads/1/3/1/4/131453870/vofofilof.pdfIn PDF document text
    • http://nerax.multinationalmemphis.org/uploads/1/3/0/7/130776659/ded35bed.pdfIn PDF document text
    • http://files.highlandcreekranch.com/uploads/1/3/1/4/131407635/9246725.pdfIn PDF document text
    • http://files.five4him.com/uploads/1/3/1/4/131406606/653a4.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/c5f408bf-c8c7-4392-a8a6-93af2f07e180/73105090637.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9af903c-0eb3-45f7-b129-52caca4befab/detipaziwipetibubiguzepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd4674a1-41f3-47e2-b539-436132153239/53178937633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3655/7736/files/pathfinder_vest_of_stable_mutagen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0061/7381/files/58925980091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1627/6133/files/vibafusoroforagipapiso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7d687b4-0883-4ee5-b7c8-2d0707e1737b/kolepivubi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/021371d6-b914-48fc-8817-9e5e5ba9ab26/wasewisesuzewak.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_off00005a0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0F 4784 bytes
SHA-256: 9911739d2b60db08824a9b9231d3ba85f3df639b0c98ce178bf601ce040a4e2f
font_01_sfnt_off00006a4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4E 10008 bytes
SHA-256: 3bcf741cbb5aad0d545842919eb378cf9a48263008e685180042cbdead1b5759
font_02_sfnt_off00008c77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C77 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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