Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f3ad038a6a5bd9…

MALICIOUS

PDF

72.2 KB Created: 2021-03-06 02:25:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1e51433ab2e397366703d5e929b2ae65 SHA-1: 4e45006f04408b025ee0a7d23f74b8bd0aee0adc SHA-256: 55f3ad038a6a5bd944c1ae07ab69ab3770cedd4d640e3ad1bdf0acbbce87d336
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=j%25C3%25B8tul+f+602+cb PDF link annotation
    • https://cdn.sqhk.co/lepemafe/Dhhjchd/obdclick_free_auto_diagnostic_obd_elm327.pdfIn PDF document text
    • https://cdn.sqhk.co/kagelemovo/W9nIeeN/carrom_3d_game_download.pdfIn PDF document text
    • http://english-10.site/hp_officejet_8600_printer_price2ljpg.pdfIn PDF document text
    • http://rutenowataba.iblogger.org/15932875564.pdfIn PDF document text
    • http://ig-soft-team.com/16627264233leuzq.pdfIn PDF document text
    • https://gokepitamewema.weebly.com/uploads/1/3/5/3/135325242/lufim.pdfIn PDF document text
    • http://inostrana.com/dumemevopojotuswx592.pdfIn PDF document text
    • https://valijobeguxufa.weebly.com/uploads/1/3/4/1/134108929/6834a9a5a.pdfIn PDF document text
    • http://creditreportfast.info/nevupobazaroplf5aj.pdfIn PDF document text
    • http://afracheat2.xyz/zisexapisorelijapuvokatfsi82.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rebogarupoza.epizy.com/olympus_om_10_lens_mount.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76e1fa53-ad7c-4708-b4a7-47dda18c8877/20375548502.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/806e5c2b-1683-40e8-b1c4-3fdd34dde156/irobot_roomba_i4_4150_vs_i3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fa633eb-e901-46c3-8cf4-76d36ccd0b3e/cross_linking_polymers_definition.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_off0000d470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD470 5088 bytes
SHA-256: c69cc61e6a9a62cdf36ecd9c51645e52d61cf8cd991c04fab4bc37bcf48c4273
font_01_sfnt_off0000e5df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5DF 14204 bytes
SHA-256: ba0de6a88f29cc488c1c3a48fa7cb5f38a5ee81b231894029c63de0431f5026f