Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f0dff6b0afded14…

MALICIOUS

PDF

82.6 KB Created: 2020-12-01 02:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 5020ab049d745884e10b93afe0a67ff6 SHA-1: 3b699cd7ce7e53f33d79e7ce48b3e0d819d5c003 SHA-256: 6f0dff6b0afded145c6adc8ded3c60156018938124c51bf7356fa1bd2bb2a96c
96 Risk Score

Malware Insights

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

The file is a PDF with a high ML classifier score and ClamAV detection indicating maliciousness. It contains an embedded URI pointing to 'traffine.ru', which is flagged as suspicious. While no scripts were extracted, the PDF structure and embedded URI suggest a phishing or malware delivery 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://traffine.ru/aws?utm_term=astronaut+ice+cream+anyone+reading+passage+answer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495526/normal_5fb98d4ceded1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380392/normal_5f94c989eeade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385216/normal_5fb033481fb9f.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/c4294bd4-4749-4189-82bb-ca1c0e5ccd23/89856647119.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/early_bronco_horn_wiring_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/maharshi_audio_songs_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3074326-cf03-452d-bb62-19c718b46014/84598796437.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/suzufisufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af948f4b-c2df-4b27-afef-bce6ae525ee8/16735048118.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8623a348-bcde-42a5-b201-839c8f7b3718/95826796374.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/chevrolet_captiva_2009_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2fb8d0c-a067-4ac2-8a47-86fbf13074af/special_interrogatories_california_sample.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d9d28787e879896bb85a/t/5fc10698fa04221c7143fcaf/1606485657696/kedavijajuxawoxopem.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_off0001054e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1054E 5544 bytes
SHA-256: 7c0fda37a6ec09510414c0387ea56dae57f67aee30794e655a66c8c0f0aa1ca7
font_01_sfnt_off00011829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11829 10824 bytes
SHA-256: 162de0fecebaa8e6956abe0e715ba98bf9afa0c58fd281e8dc354fa00224a6d9