Malicious PDF — malware analysis report

Static analysis result for SHA-256 734019a2b90f9e99…

MALICIOUS

PDF

67.9 KB Created: 2020-12-17 00:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: b62d52e903da6502c8b7a6cd44f363d8 SHA-1: dd0bc043ba2d4c5b89f76b54dcbbecd50af76ff0 SHA-256: 734019a2b90f9e9968e14a43a078c81bf0a2562fa0623bcd4b68d552a2fc3cbd
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to 'traffset.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a 'virtual girlfriend app'. No scripts were extracted, but the presence of external URIs and the overall detection profile indicate a phishing attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=virtual+girlfriend+app+for+pc PDF link annotation
    • https://mitemulesebiped.weebly.com/uploads/1/3/4/4/134479511/darajeji.pdfIn PDF document text
    • https://donokodupotev.weebly.com/uploads/1/3/4/3/134317189/1de7d8493554f1.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/bekalan.pdfIn PDF document text
    • https://wixotavu.weebly.com/uploads/1/3/4/7/134764887/816197.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/dbcf46a2-e3d8-4606-92e7-b8c0bf35cbd1/xogolakaferemujiwabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb5d9683-e735-4c35-aa04-f608e114eb14/57777277769.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0df487848ba205d1865f3/t/5fc5e22a18e72e5fdba2f192/1606804010992/ge_dishwasher_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/35692555994.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc283fb2bbd74065810d034/t/5fc67ff64e98326c02f32fde/1606844406953/gibbets_bow_master_game_download.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/balu_video_songs_free_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a78366db-230b-4a93-90c1-d63c1a14dd5a/rwj_clark_class_schedule.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_off0000ce67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE67 5112 bytes
SHA-256: a33356d13e7f4d78dce13fea8d2380cdc7bc90f783dd9de56626ac34ef017793
font_01_sfnt_off0000dfe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE3 10272 bytes
SHA-256: 487e2c7f4901c226403f63f17316c95ea277665f8e17bff4d7f008b1425ba709