Malicious PDF — malware analysis report

Static analysis result for SHA-256 651fa1a293fe0859…

MALICIOUS

PDF

66.1 KB Created: 2020-12-21 05:41:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: faa5aa57f649ff6a6a4197ece925978d SHA-1: 7d05e3842fea495b52dd60958ae7b470151148f7 SHA-256: 651fa1a293fe08597cf89db4c14b59c32e4cc6ef0a8283c4cbf711d80ec76753
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a malicious URL that, when visited, likely leads to a phishing or malware download page. The embedded URL and the ML classifier strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators.

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
  • 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://traffnew.ru/strik?utm_term=how+to+hack+among+us+bluestacks PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc117e49955c744b53cb0dd/t/5fc2de611972c46e3cfd3f92/1606606453703/2392920599.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24ae43dd-6db0-4240-a9c6-d4c5ebab63d6/zekinivalusexuzevuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/arch_enemy_anthems_of_rebellion_album.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/645bd75f-0797-4750-ac15-1f384de3ee81/63718999483.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/balu_mahi_full_movie_free_utorrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd5cb2d2-59c5-4e2b-8473-646b743472db/67999419509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9991ba58-990b-46ef-ad25-fa0c41466d50/the_primary_purpose_of_a_deed_is_to.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc540ba116eb00e3c6894fa/t/5fc6f97eefc65c5b7a36d9dd/1606875518376/fivudawusowowiwot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/526b8563-1b4c-47ff-baeb-ccd436a58a10/ejemplos_de_minuta_de_reunion.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/bamobemizumijarig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16ae4466-6cf9-4bb0-a770-6ccf82de6901/hd_movie_apk_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/affidavit_of_undertaking_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78cc125c-744c-4b87-ba6d-b2d33b16b9fc/61036757455.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_off0000c65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC65D 5376 bytes
SHA-256: 4721afb655f7d7684a136af18b2619f4c66ffa2eb6fa9008765c1fa2fcf8845c
font_01_sfnt_off0000d897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD897 10388 bytes
SHA-256: df12e8d33b67c84895c0e7bcd53faa5bfa3da886f205f3a84ed661f07be56a99

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