Malicious PDF — malware analysis report

Static analysis result for SHA-256 9922330bc2083a09…

MALICIOUS

PDF

74.2 KB Created: 2020-12-26 09:19:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2d0e172b4baf166d51df32463040fc6b SHA-1: 7ac866236776fd72124c508e8847d62e0d1f5d80 SHA-256: 9922330bc2083a09ff77a7d8f6dfa15d9ea777568f3748f651e98f807827a451
244 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, masquerading as a game download, which is a common lure for phishing or malware delivery. The presence of a malicious redirector link and a link farm on disposable hosting strongly indicates malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffmen.ru/strik?utm_term=dark+internet+juego+de+terror+y+supervivencia+apk In PDF document text
    • https://kikuvabafot.weebly.com/uploads/1/3/4/3/134332304/majaxoguwivilesu.pdfIn PDF document text
    • https://cdn.sqhk.co/lisesemafo/wgjDjf4/renelavovagagute.pdfIn PDF document text
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/rudupodaga.pdfIn PDF document text
    • https://cdn.sqhk.co/gurukemopuge/gehfjiy/power_rangers_all_stars_mod.pdfIn PDF document text
    • https://digokevun.weebly.com/uploads/1/3/4/7/134747151/xaxonexit_pilinuweratap.pdfIn PDF document text
    • https://foruvojupizife.weebly.com/uploads/1/3/4/3/134352799/3145195.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/2jfnhbc/how_to_draw_tie_fighter.pdfIn PDF document text
    • https://xomevore.weebly.com/uploads/1/3/4/3/134346529/6683225.pdfIn PDF document text
    • https://giridoxaxe.weebly.com/uploads/1/3/4/7/134703098/05bb86750e.pdfIn PDF document text
    • https://nulivoji.weebly.com/uploads/1/3/4/3/134343303/717c10482.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/Zge8F6J/hashtags_for_instagram_fashion.pdfIn PDF document text
    • https://muwewixobajigu.weebly.com/uploads/1/3/4/3/134312624/1bcc07db6edc.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/0c98d2a3-c911-4235-a832-015e2e75a1f2/wuvupi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF4 5508 bytes
SHA-256: c9c92de08a9d3479acf82f9b31493af26b5f7b9edb16dd10c2672554ff01f825
font_01_sfnt_off0000dfe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE2 10676 bytes
SHA-256: 771a0124cb49cffad34f168534e9ae9623325d6a6f672c74f7dfc871ffa3c721
font_02_sfnt_off0001048b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1048B 16092 bytes
SHA-256: 2c5f1a2e3d9f683f6a217a47aeaaae813f7d4ef732a5ff54a929695507d09140

Open this report in the interactive analyzer, or submit your own file for analysis.