Malicious PDF — malware analysis report

Static analysis result for SHA-256 b362b4d986e75b43…

MALICIOUS

PDF

29.9 KB Created: 2020-11-03 11:12:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 8aa3af1483264884b69de6d29b0214e7 SHA-1: 30ba706f74e861615de56731acbcf26da25193fd SHA-256: b362b4d986e75b434b846df8d41d26739bf057c42d7ca05aab4313c5e05d80c4
114 Risk Score

Malware Insights

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

This PDF document is designed as an image lure, presenting a screenshot to conceal a clickable link. The embedded URL, https://ggtraff.ru/123?keyword=arlo+pro+camera+manual, is identified as a malicious redirector, indicating the document's intent to lead the user to a harmful destination. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 29 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://ggtraff.ru/123?keyword=arlo+pro+camera+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5f8e8ab24c7b9.pdfIn PDF document text
    • https://zasiranel.weebly.com/uploads/1/3/4/5/134507270/3679070.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371523/normal_5f90a19b24145.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414495/normal_5f99e29c5e961.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/3a0a7d62-c390-4961-93c3-8b0a556be5d9/jerobarulejenikewu.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/vadumidumijixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cc1e7b5-fb21-49b0-b0cf-0d4e69e74c19/43571717674.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/zibikofimisukobojazukef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5600268a-8d6e-4df6-ac28-03501929587a/zefipupikipixinudagomu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28a08474-2c44-4aa1-b16b-62f799cdae65/tewekowitorutupovona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aab761a-ecb6-4d42-a575-998337db8103/69453571474.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc4241e1-6c7a-4eab-b2c4-fc06280335eb/bazaxuregixagutarol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fece531-3fef-4b6f-accc-c197ff95acee/fotigozenujawemowafaf.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_off00004072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4072 4892 bytes
SHA-256: 02c76259588dcdecd467b7532ad6e2da94729adeab80679c8859188d46a8a053
font_01_sfnt_off000050fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FE 7744 bytes
SHA-256: e98c3b6586936b657891ebb227847aff63e789e7fad4b7f0a6ada0060f58dd06

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