Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a61b1ace2b8213e…

MALICIOUS

PDF

75.2 KB Created: 2021-03-01 03:44:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: a35935c93017d78413bdf4dfdc123efb SHA-1: 5a3d41d1ad94dae65bf970f4000a3b9cee90d94c SHA-256: 8a61b1ace2b8213e4b725d5d5c0707a143c9a1ef6b6c7aa0fcdd144aff4f00e1
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or redirection mechanism for distributing malicious content. The document body, though heavily obfuscated, contains keywords related to "tarot rituals spells pdf" and application metadata, indicating a potential lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/wix?keyword=tarot+rituals+spells+pdf PDF link annotation
    • http://itawegan.space/spanish_present_tense_verb_conjugation_worksheetmfid7.pdfIn PDF document text
    • https://cdn.sqhk.co/ropobemuma/jbSexhc/knight_rider_2008_pilot.pdfIn PDF document text
    • https://meribukefola.weebly.com/uploads/1/3/4/3/134314312/dobuzexuwowat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409396/normal_60148c9026e32.pdfIn PDF document text
    • http://dajexori.mypressonline.com/all_my_sons_arthur_miller_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/sexipemajim/Kfyhjhh/beli_pulsa_transfer_telkomsel_murah.pdfIn PDF document text
    • https://cdn.sqhk.co/pumibavi/jfWhgot/official_beer_pong_rules_last_cup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368751/normal_5ff384f18eb7d.pdfIn PDF document text
    • http://jovefupe.mywebcommunity.org/guxagagikojimiwuk.pdfIn PDF document text
    • https://kesiwupi.weebly.com/uploads/1/3/1/4/131407351/masekudesufozim.pdfIn PDF document text
    • http://vojemodipu.sportsontheweb.net/nazigidufokazujipeferib.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/sony_a300_camera_user_manual.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/sinadi/80606231275.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_off0000eb08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB08 4984 bytes
SHA-256: 323c0f72baccfcb5d15d44f057813d075ee37ffe0d8578646bb7df188de41584
font_01_sfnt_off0000fc0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC0C 10448 bytes
SHA-256: 06c30556275e59635afc71f417225e0e6647df15b1f9ae8075947df84593d07d

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