Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa96b37215f97d0…

MALICIOUS

PDF

75.3 KB Created: 2020-12-21 13:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 9ba6d9a589f354e7757fda0c33f985fd SHA-1: 6b945a20f452066b0fd1899381c52530e18b1752 SHA-256: 7fa96b37215f97d0f305ce864569a299dd0b0fec736f1b197abb2f4851f857a8
96 Risk Score

Malware Insights

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

The PDF file contains a malicious URL that is likely intended to lead the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Crashing hbo cast season 3'.

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://traffset.ru/strik?utm_term=crashing+hbo+cast+season+3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365539/normal_5f873d2c5e9bd.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/0f26fd32-56b1-4a76-8217-7b39c78e2ce2/97528863647.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a8e90b6b03258f40d573/t/5fc71a9b5fecd2174b57d34a/1606883996576/farm_world_kitsune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49ffb781-3102-4356-acfe-66240a5abf16/92430026513.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/samsung_internet_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93f17276-987a-4340-b151-3333693af5e8/64332876633.pdfIn PDF document text
    • https://s3.amazonaws.com/vezosoluvezoj/75781464483.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/game_billiard_8_ball_pool.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/bellevue_ear_nose_and_throat_issaquah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44fe0678-22b0-40ba-93e6-c950078f6ebe/gawes.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/gmat_official_guide_2020_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/add389f9-37a0-4348-8acf-35107d80dfdd/33951580107.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/bloons_td_5_windows_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/tifemuma/62130129950.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b77112facd59cecdffb0/t/5fc65d181972c46e3c77ed36/1606835481122/budadumidusokukowaxesuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e9c0e8a-c322-4e12-a06d-573d27d30979/titenaz.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_off0000db38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB38 5144 bytes
SHA-256: d4a27996b3849006f3f8e875c5bd4d91656b41f3b75e1720d86910f9fa48565c
font_01_sfnt_off0000eca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA8 10896 bytes
SHA-256: df8dd76ee783383770b9536e39ef1104dd323e1398c89110276fe4afe0428671
font_02_sfnt_off00011214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11214 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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