Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa94a5cd904722dc…

MALICIOUS

PDF

75.9 KB Created: 2021-03-11 14:46:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 009260c3b1b8bbbdf3bc92d263e28af5 SHA-1: 866d51603c252e6d7636f41111e809f4d4339ecb SHA-256: fa94a5cd904722dc4c4f357196641cdbcd007324119d83d0bc34c15c631a4189
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting services and appear to be part of a link farm. The primary malicious URL identified is 'https://soxebez.ru/wix?keyword=rules+of+survival+mod+apk+obb', which is likely intended to deliver a payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/wix?keyword=rules+of+survival+mod+apk+obb PDF link annotation
    • https://kapumalozaz.weebly.com/uploads/1/3/4/8/134892255/642bc2c53d.pdfIn PDF document text
    • https://jifonoru.weebly.com/uploads/1/3/5/3/135316211/lebevuwuzili_xezidawijeniten.pdfIn PDF document text
    • http://bigpleasure.ru/rofurozibamefelilc5ek.pdfIn PDF document text
    • https://lisufijefe.weebly.com/uploads/1/3/2/7/132740260/2a43af8af.pdfIn PDF document text
    • https://kekageguva.weebly.com/uploads/1/3/0/7/130776826/3443496.pdfIn PDF document text
    • https://cdn.sqhk.co/zolulesar/ijPkx0V/looperman_drill_samples.pdfIn PDF document text
    • https://cdn.sqhk.co/balemarize/bppjf71/movies_anywhere_apple_tv_4k.pdfIn PDF document text
    • https://xaburopufazig.weebly.com/uploads/1/3/6/0/136051881/c8b85be7035.pdfIn PDF document text
    • http://zomuregunaradu.iblogger.org/bathroom_accessories_data_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/wenegifuteg/idhh9on/17188819910.pdfIn PDF document text
    • http://pubguckazan.com/96621421496z0kif.pdfIn PDF document text
    • https://sarefipa.weebly.com/uploads/1/3/1/3/131398419/voforufit.pdfIn PDF document text
    • http://lowwsaw.xyz/which_penny_stock_is_good_to_buy_now_in_indiadgxpf.pdfIn PDF document text
    • http://xexugij.iblogger.org/calendario_2020_mexico_para_imprimir.pdfIn PDF document text
    • http://euroshopmn.space/sogajiruwezitud491nr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jeponowon/17192606548.pdfIn PDF document text
    • http://lakowederegono.epizy.com/56052146432.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/mobile_car_wash_business_plan_template.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_off0000dcd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD4 2952 bytes
SHA-256: cb9072f881c1fe0ad8900bbcc5a20a23fabb306412f64e001cac76c2a9509f2c
font_01_sfnt_off0000e763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE763 5456 bytes
SHA-256: 9df42ce8409c1166efa0ec78f26aae1979f4a518601ed795c4f0efe59ca45b2b
font_02_sfnt_off0000f9e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E3 14572 bytes
SHA-256: 0c67bd12934090efd69a15f65ce63d5fe1246f6192bcb159be9189662400e9ba

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