Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fe53964f2f561e8…

MALICIOUS

PDF

77.9 KB Created: 2020-12-19 20:18:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1c6fffccd25122d1c309ef1076d0825 SHA-1: 7b9e0032fa9620302f9a4c6f61eeb780ac91cfef SHA-256: 5fe53964f2f561e8fd3e351f2c348c209c1fc5fff53de3cc0c894baf37969967
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, appears to contain text related to movie downloads, reinforcing the phishing lure.

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://traffine.ru/aws?utm_term=filmywap+2018+south+movies++hd
    • https://cdn-cms.f-static.net/uploads/4485568/normal_5fdc6bc9904fb.pdf
    • https://static.s123-cdn-static.com/uploads/4417997/normal_5fc5b6fdea5bf.pdf
    • https://cdn-cms.f-static.net/uploads/4449779/normal_5fa6487b32f43.pdf
    • https://cdn-cms.f-static.net/uploads/4417205/normal_5faea444db04f.pdf
    • https://cdn-cms.f-static.net/uploads/4413231/normal_5fda4ff78ee59.pdf
    • https://cdn-cms.f-static.net/uploads/4449996/normal_5fd2978b8e90d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/9f85f82a-5655-48b6-9622-cb548df37ac9/todapumegunuxa.pdf
    • https://uploads.strikinglycdn.com/files/dfb3a843-dc81-46fa-a69c-b72a0f550af1/welibibasofefejelar.pdf
    • https://s3.amazonaws.com/fenatagazise/pdf_to_black_and_white_converter_online.pdf
    • https://uploads.strikinglycdn.com/files/83fad068-fe7d-4979-b7be-1eaa4baffb57/fuvalomewexugebogemuxa.pdf
    • https://s3.amazonaws.com/jipowumat/chemistry_data_sheet_wjec.pdf
    • https://s3.amazonaws.com/limepusotanal/19738990093.pdf
    • https://static1.squarespace.com/static/5fc362cf5687f52b6b9115bf/t/5fcf6c73cd9a2056ff76a3de/1607429236194/disney_princess_adventure_game.pdf
    • https://s3.amazonaws.com/zufaxepixiguxax/economics_basic_concepts_for_upsc.pdf
    • https://s3.amazonaws.com/pokixovuxik/85539314396.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6d9.bin
faf2b10bbceaeb05335f97caf662c89503131fb66cb78626d1299ca0385c3ec0
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D9 5832 bytes
font_01_sfnt_off0000eab0.bin
6b00eb023f929ad2f5f46a2e1b4b4f56af544f32e76fb67f8dd74244f2dfea68
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB0 12844 bytes
font_02_sfnt_off0001142c.bin
df8916dc0488248139c8b7f8575cdad52201066875df9eb3f38f8be7ce625b0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1142C 16076 bytes