Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02c3c0a9e22892e…

MALICIOUS

PDF

80.1 KB Created: 2021-03-27 18:41:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 81852b8f28a55f901081333613315112 SHA-1: c577601d8bc337011bb1faadb646ee2901b65249 SHA-256: c02c3c0a9e22892e828ebc44379fe143438a72310e76c3c83ea648c59ddba562
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, suggesting a link farm or phishing operation. The ClamAV detection and ML classifier also indicate malicious intent. While no scripts were explicitly extracted, the presence of numerous external URLs points towards a malicious document designed to redirect users, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=soccer+goalie+gloves+game PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4455403/normal_5fdebdd6bd0db.pdfIn PDF document text
    • https://malugeko.weebly.com/uploads/1/3/1/6/131636988/zatopulabuletu-risadope-luveb-lobetoxuwej.pdfIn PDF document text
    • https://vibajadulefunuk.weebly.com/uploads/1/3/0/8/130874079/gupimemopixupat.pdfIn PDF document text
    • https://zexuboru.weebly.com/uploads/1/3/2/6/132683252/bonebifufes-bagirewir.pdfIn PDF document text
    • https://cdn.sqhk.co/ragebobeb/dNTDhhh/easy_flight_flight_simulator_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388420/normal_602acd0400013.pdfIn PDF document text
    • https://piwaxiru.weebly.com/uploads/1/3/4/8/134882920/tumodegox-mobosi-logoduxogo.pdfIn PDF document text
    • https://dotimozenut.weebly.com/uploads/1/3/5/4/135400211/lajatadigexumo_lesepudobepe_nuwoju_lusamev.pdfIn PDF document text
    • https://migobagola.weebly.com/uploads/1/3/4/8/134874333/dawesizepunojum.pdfIn PDF document text
    • https://xisulufi.weebly.com/uploads/1/3/4/8/134870666/niwamejuga.pdfIn PDF document text
    • https://vufosaxirit.weebly.com/uploads/1/3/4/0/134018891/bovomole_noposevinodap_lisudoji.pdfIn PDF document text
    • http://wordsidepost.top/8411952693094a1z.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/njhhdac/14307240371.pdfIn PDF document text
    • https://cdn.sqhk.co/rutunidosaw/6qJViiP/monkey_go_happy_ninja_hunt_unblocked.pdfIn PDF document text
    • http://losqutoq.online/zirafevuwotawpqhrg.pdfIn PDF document text
    • https://cdn.sqhk.co/xafeperale/ijojgif/1409147941.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f730d15c-1921-46d2-b6d4-288333e40990.filesusr.com/ugd/e2c223_78f75999e9514062b58419b74001fe38.pdf?index=trueIn PDF document text
    • https://6363ce23-9394-4102-a476-7be320345719.filesusr.com/ugd/7c41c1_49b52c764f88414bb012dec7beaac948.pdf?index=trueIn PDF document text
    • https://24218389-b518-4ca3-8548-65eaf758daa4.filesusr.com/ugd/c836c3_1a8fa64cfab04b138f3b687bad48c653.pdf?index=trueIn 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_off0000fcef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCEF 5284 bytes
SHA-256: 7eb2e8215494fb4f8b4e7a89aa78b4e3898b418345f90b6276b5f6c98ce91364
font_01_sfnt_off00010eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDA 10656 bytes
SHA-256: 03c857bcdbd6b39f5e1e979db9d4fe343eb7c2d917a929cd92a487b468e0f732

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