Malicious PDF — malware analysis report

Static analysis result for SHA-256 af8afa5d15875f42…

MALICIOUS

PDF

69.3 KB Created: 2021-01-08 17:50:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 453179da8e8f03625b7cad416c0f0944 SHA-1: e0407fe748a9385407dc096965f12f6093529638 SHA-256: af8afa5d15875f421ef12d924aa3588677c6ededaaaa7d8e3d6a9dd44e4d68c2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for further exploitation. No scripts were extracted, but the overall structure and embedded URI suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://trafftec.ru/aws?utm_term=oas+cahps+guidelines PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369626/normal_5ff51f0e9ee12.pdfIn PDF document text
    • https://cdn.sqhk.co/nafolekuge/hbiiFji/56182473062.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/dhj2WSU/83113881589.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/80764cda-67c3-43f5-8216-9f55f8ac663d/32488179213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94263643-9f63-435e-9d8c-8d1decc3b56b/78379765689.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5d7d0c3-cd2d-40bd-bf62-2a42d9283e08/naboranadelelibamepowobas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a083c5e-e619-4ed1-8fc9-9709da373941/sirodamurakubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10398c0a-0812-443b-9336-69747188f1f2/pevunofuwemidevubumuvak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d402f369-33ba-4c8f-99e2-e390ead8f4b8/70736166432.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/684dd204-c2c5-48bc-b669-bf1f4401a3da/sobeberanal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18e4db1d-fbbc-456a-b0db-a088868b1693/finding_nemo_sea_turtle_coloring_page.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5761d4d-ff37-4683-bd1b-e1084d60937e/nevanakemebasuzibudig.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_off0000c5b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5B8 4956 bytes
SHA-256: 9c297cd69d779a026ca484931f6a60121fbefc5e0d0a5738e0e8b9439ad2c7dc
font_01_sfnt_off0000d685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD685 10680 bytes
SHA-256: 919210e5ddfa158500045aa6d8ec3ce20c82cff012e834e3218ca06c3777d80f
font_02_sfnt_off0000fae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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