Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ca6649f92628fb…

MALICIOUS

PDF

88.0 KB Created: 2021-03-06 19:43:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 831a07ed4734463088754bc764a6c570 SHA-1: 1137361dae5b9fb054d70993e5b8e89fa6d4d00b SHA-256: 60ca6649f92628fbc544761b323a4df8d8c911a187661589f3e39270336ef54c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://leonvi.ru/award?keyword=how+to+get+hawaii+state+id+maui PDF link annotation
    • https://cdn.sqhk.co/zupodejadofe/ihhiPm6/oscar_health_plan_of_california_address.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/hfrhcU3/88256152824.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/7Wxiejb/mosepuparitugopa.pdfIn PDF document text
    • https://cdn.sqhk.co/zixemoliz/uG4Iggo/12_hour_mountain_bike_race_arizona.pdfIn PDF document text
    • http://kosolibanun.iblogger.org/wotizepafuladiwewonigi.pdfIn PDF document text
    • http://rujakagixawimir.22web.org/87219457408.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/lasko_high_velocity_blower_fan_cleaning.pdfIn PDF document text
    • https://cdn.sqhk.co/giwitosak/IMxgdJp/clone_tool_photo_app_android.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
    • https://uploads.strikinglycdn.com/files/5e435df2-250d-4c0f-942c-f29394cee672/2150437024.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/638e545d-ff97-408a-9333-de9ee6af3a2a/febuxuseve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92a023ee-74e3-474f-8abe-156e31eb7dcf/22137549625.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/wallpaper_samsung_galaxy_s10.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/52152318626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49b44e4d-e45c-4cc6-b39c-fca54b4eb2da/dipijokuteri.pdfIn PDF document text
    • http://zozezad.epizy.com/1964927303.pdfIn PDF document text
    • http://totenudiwuwodu.epizy.com/satuzokokegonidus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c81c164-a61f-460b-a603-403512305fc1/new_craftsman_tools_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9f4ce03-7dc5-4cc2-9642-c8bd2eb09ddc/words_to_describe_a_forest_ks1.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/genki_textbook_2_answers.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/pazapivuzi.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F5F 4940 bytes
SHA-256: c83cc3419b68e072e2017b8b480f100e152a0d1468cc9fe509934a4261732855
font_01_sfnt_off00012047.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12047 10744 bytes
SHA-256: 150bd695f0c9519eaa9ad5f80a9b29bbdefbd07f8b69ddc9d4f3a012c79d89de
font_02_sfnt_off000144d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144D8 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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