Malicious PDF — malware analysis report

Static analysis result for SHA-256 047ed3e098b8e905…

MALICIOUS

PDF

84.2 KB Created: 2020-12-21 16:40:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a1f7fa88d80096ab4341d41a3068aa59 SHA-1: ba85c67177ac0dc72e654b47dd33eca783aa9087 SHA-256: 047ed3e098b8e905f98abef68b80bef75fca19249f64fa69a43d180d6ce9c198
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to a suspicious domain, traffset.ru, which is likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Gta 4 girlfriends abilities'.

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/123?utm_term=gta+4+girlfriends+abilities PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/function_notation_word_problems_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7532f0a8-0538-469b-a4ce-47e2a9fa38a1/konigamixo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e6028fb-7a93-44f7-9b6a-e1fd8b6ea3a4/appeal_letter_template_for_parking_ticket.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00952968-0138-4d6f-a849-bb735166beb8/turtle_shell_rot_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/black_amoled_screen_off_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ca81647-2e36-4161-bd60-553d17aa26c4/62879456739.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b00403-efbc-425a-8a07-6ee7e7b5ef98/jetugatifodaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a74a89fd-4aac-4db6-b821-d9a6009418ca/tifisiresolixatumirabiv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdfdaa4c2d4633280f892cd/t/5fdffe52f5f64226566e8023/1608515155370/functionalist_theory_of_society.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/gasket_material_sheet_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/535989da-ba9e-4993-a753-e4135310464a/10868180529.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/windows_10_hardening_guide_dod.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_off00010ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC3 5332 bytes
SHA-256: 583985d99fe44779614f45ccc5416f25c6ab036b0d82a92a34ec861a17a09944
font_01_sfnt_off00011cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CFD 11580 bytes
SHA-256: 32beb2b5f7e8d1a27d2c4075859863c81c19def793e7a77cc660eacd232b9ab3