Malicious PDF — malware analysis report

Static analysis result for SHA-256 95dd7922ab770ade…

MALICIOUS

PDF

73.4 KB Created: 2021-03-01 04:20:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: b34e7bee9186795bf96f6011ac67c1d9 SHA-1: afad3ec9428a0edcf902bcc465b34d5a9091bbf8 SHA-256: 95dd7922ab770ade879ca0c921e6990fc74997ed8aaecfabb838200edf8cd45c
126 Risk Score

Malware Insights

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

The PDF file contains multiple external URIs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to a search query, directing users to potentially malicious domains. The presence of numerous links to disposable hosting and link farms further supports a phishing or malicious redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://seumenha.ru/strik?utm_term=what+brand+of+pressure+cooker+is+best PDF link annotation
    • http://kajejib.medianewsonline.com/36869547713.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/QFWE6jf/85586015832.pdfIn PDF document text
    • http://mebesovinu.22web.org/newagumoroxubibur.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/hjhgggf/vikinemiwixekodorerujo.pdfIn PDF document text
    • http://damodudajipofem.22web.org/61543799824.pdfIn PDF document text
    • https://talunijepi.weebly.com/uploads/1/3/4/5/134599753/zekurunolobi-lutexi-pazumerope.pdfIn PDF document text
    • https://cdn.sqhk.co/xivomojuf/nLBKmij/interstellar_black_hole_live_wallpaper.pdfIn PDF document text
    • https://mapavafamaluri.weebly.com/uploads/1/3/5/9/135999294/ludenubuketo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xobibaga.myartsonline.com/zibatobepifuninajovotagis.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/pathfinder_npc_codex_trove.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/dancing_line_sheet_music_the_desert.pdfIn PDF document text
    • http://suvalomimo.atwebpages.com/xixosawubi.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/does_porque_mean_why.pdfIn PDF document text
    • http://zaxawewobarus.epizy.com/fadofewawugituwurofolid.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_off0000e147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE147 5428 bytes
SHA-256: fbe7e710519a3d294c0cb2c820ac39784cae337a68bf82da9a56c7dbd424a514
font_01_sfnt_off0000f3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C3 10932 bytes
SHA-256: 9328d3e57be8a33d9defbd01ea98f07c4f690a5276e03cb905b193c8d29d0766

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