Malicious PDF — malware analysis report

Static analysis result for SHA-256 977d9e571ef2f137…

MALICIOUS

PDF

68.8 KB Created: 2021-02-25 19:48:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: e672c8bc23a38908e5d5d31de81996ee SHA-1: 1ee6f4cce62e83afd3ff156e1e5cadfc2ee3f4a8 SHA-256: 977d9e571ef2f137051affe1f0f3c043bba9982accf996299469fa5fbe83dc36
126 Risk Score

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://jottigo.ru/award?keyword=what+to+do+with+fido+plot+diagram+answers PDF link annotation
    • https://dudumudisedaj.weebly.com/uploads/1/3/4/5/134591614/nilinunimumipotapu.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluxoni/hFihEhg/84462882336.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/jejirapavedaseno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447641/normal_5fe04cc82c86b.pdfIn PDF document text
    • https://cdn.sqhk.co/ramazunor/diibqY4/dupobasazogibiwug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403274/normal_5fe25296c87d7.pdfIn PDF document text
    • https://cdn.sqhk.co/podoxato/ohfcghY/23683964160.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489595/normal_5ff41afa4cf94.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/xo0Pib8/man_down_shia_labeouf_trailer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423136/normal_5fe021ab8bc45.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/paxivogedewilu/jesus_loves_me_sheet_music.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/costco_laptop_dell_precision_m6800_drivers.pdfIn PDF document text
    • http://kepofif.onlinewebshop.net/plc_programming_training.pdfIn PDF document text
    • http://gixosuwali.rf.gd/mikavusugufazinaxogakuvez.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/bokuwusomutu.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/87097877514.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_off0000cfa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA0 5560 bytes
SHA-256: a7673e9871e43c34ae787bc49968656319e49d06382d6ab75ac75885a59896f0
font_01_sfnt_off0000e27e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27E 10476 bytes
SHA-256: 73c9dcae1e0f64cee043bea6a63ba19ef79b8673788928cd6b5e010755d4f50d