Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f308b63dc110b3d…

MALICIOUS

PDF

74.7 KB Created: 2021-03-04 07:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 2171743ca2ceb88794b48377a8124178 SHA-1: 89b370e53e4162c6f3f7a344c72c5c582e660aa3 SHA-256: 6f308b63dc110b3dfa03a0f5aa0bf7c83fc6600cf8f3e4ffeebf0739415f2234
126 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with at least one pointing to a suspicious domain known for hosting malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/strik?utm_term=club+car+xrt+1550+parts+manual PDF link annotation
    • http://xofebuledat.scienceontheweb.net/what_was_the_impact_of_the_enron_scandal_to_corporate_governance.pdfIn PDF document text
    • https://cdn.sqhk.co/jigugabopu/YjefFhi/80757050668.pdfIn PDF document text
    • http://gejudoxe.mypressonline.com/dokoxupomogele.pdfIn PDF document text
    • https://cdn.sqhk.co/kutajanode/VhbwtcC/fowejiroguja.pdfIn PDF document text
    • http://1s.london/safari_animal_sounds_and_list_in_afrikaansic62d.pdfIn PDF document text
    • http://frankiearvelo.com/giduwalakabomar93c8q.pdfIn PDF document text
    • http://dawajilimomod.iblogger.org/fifogukozovu.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/kenmore_mini_fridge_settings_1-7.pdfIn PDF document text
    • https://cdn.sqhk.co/losokifape/hc4didq/giant_ride_control_app_update.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://lelisavebak.rf.gd/datasheet_i2c_lcd_16x2.pdfIn PDF document text
    • http://lewumexotenotun.epizy.com/zagega.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/97942868087.pdfIn PDF document text
    • http://widopux.epizy.com/the_creme_shop_eye_sheet_mask.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/zafapivenoxog.pdfIn PDF document text
    • https://s3.amazonaws.com/sejakopa/sijirosot.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD83C 5236 bytes
SHA-256: 1504c74836ff4c27902cd96bbdcfd2836377595ffb18a279f9d8876aa11b7c09
font_01_sfnt_off0000e9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F6 11584 bytes
SHA-256: 4e7c03988fd2624dcb3f3eeb21a1dce8f45660b01f9e601ca9b37fbab793f382
font_02_sfnt_off00010fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FCF 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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