Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d93fd84f80eab1…

MALICIOUS

PDF

69.6 KB Created: 2021-01-03 13:12:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6b1c8bdf886835d699c88f06a1d2715e SHA-1: 274adaab964ac031bcf80fce528a8d402a3b565b SHA-256: 68d93fd84f80eab13b401bbc96c6e7ecf94a8386d1e995015117d518ce3a8e6d
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. This, combined with a high ML score and ClamAV detection, strongly indicates malicious intent. The embedded URL is likely used to lure victims into a phishing scheme or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/aws?utm_term=federal+fuel+consumption+guide In PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/xobafipat-lesajodelabi-ginizolimitosuj-petatokuti.pdfIn PDF document text
    • https://fofifakexetag.weebly.com/uploads/1/3/4/3/134345684/46eabeab3f8e.pdfIn PDF document text
    • https://cdn.sqhk.co/mebereserab/iYsjeja/episode_choose_your_story_game_download_for_pc.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/4056517.pdfIn PDF document text
    • https://golisarupu.weebly.com/uploads/1/3/5/3/135317681/xixodi.pdfIn PDF document text
    • https://gonubogebedop.weebly.com/uploads/1/3/4/8/134886664/fofaroworaroru-sojusige-tides-dibeta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/54277051087.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/91406072161.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/12620560699.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/50814102031.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/bojepu.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_off0000d325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD325 5432 bytes
SHA-256: 3f09774b5627862d36d1b00ed39baf6e486347bbaae9a7737d64b7687b5556ba
font_01_sfnt_off0000e58d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58D 10760 bytes
SHA-256: 9174e78f9a2557561b498d103593f708abfeb8106c206a6bd6c425cf9f8e9273