Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0ab713a160fd8b8…

MALICIOUS

PDF

68.4 KB Created: 2021-03-18 06:58:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0e409d6ac79bf43a8b654913c1268370 SHA-1: e60cabea325be70f6ff7839cb6d44117955db003 SHA-256: f0ab713a160fd8b8a0e2b7a75878c6ea5d4428e36da338e4399d3d10e74314a1
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://botokaw.ru/wix?keyword=clear+vision+5+unblocked PDF link annotation
    • http://rarojuso.22web.org/75692095699.pdfIn PDF document text
    • http://just-gopro.com/why_is_my_new_epson_printer_not_printing_when_the_ink_is_fulldpsys.pdfIn PDF document text
    • http://grusha.space/gatowanovenuvomabonoww50o.pdfIn PDF document text
    • http://kolagozisil.mywebcommunity.org/weights_exercises.pdfIn PDF document text
    • http://rirarojafetojep.iblogger.org/13338801906.pdfIn PDF document text
    • http://wusozupu.mypressonline.com/metetominemupekimedinebit.pdfIn PDF document text
    • http://premial.su/porcupine_tree_blackest_eyes_drum_shpqvr1.pdfIn PDF document text
    • http://tezibif.mygamesonline.org/voves.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/40120022697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5a6bc72-3423-4d42-b6db-433db2c882e2/midani.pdfIn PDF document text
    • http://dokudaruriwiv.atwebpages.com/sudetunev.pdfIn PDF document text
    • http://fixiwajavonuti.atwebpages.com/bewemazirami.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1fdfa20-28c0-48db-8aaf-a1da790b1137/why_is_audience_important_in_technical_writing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8029a3ea-bf4d-49ed-a739-00cc1c676883/what_are_icd_diagnosis_codes.pdfIn PDF document text
    • http://muzulozak.atwebpages.com/57028736802.pdfIn PDF document text
    • http://rerupini.epizy.com/31494496220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cc90344-59d3-4921-a197-44596b866176/best_robot_vacuum_review_2020.pdfIn PDF document text
    • http://fefezaw.rf.gd/radio_shack_getting_started_in_electronics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c681f432-8038-4ba9-80f1-6709e08b1534/girazifoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1539b68b-5da3-4462-9755-90f9e9e41cdd/lonely_planet_mexico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/596a261a-dd5f-4b86-a4d9-7feb17a7d671/sex_and_the_city_2008_charlotte.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA5 5224 bytes
SHA-256: 1c22ec8393ff3d81070148178491940b298e7bbeffecd642e4997008d0db35c6
font_01_sfnt_off0000e07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07F 10508 bytes
SHA-256: b637486c7a1e9e86863a1cb3596686e216303b16342dd26c312b71b9ad2f3a42

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