Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab47aafd67e5f7f…

MALICIOUS

PDF

50.6 KB Created: 2021-03-20 21:23:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e0f0a83730641c7bcfcfa27e82cce126 SHA-1: 4f40f6ecb300db2304ed2260e4de20433508f598 SHA-256: fab47aafd67e5f7f04e827a86b7e0c599769ad5b2df656705a962d2173773678
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, many of which are hosted on disposable domains or use UTM parameters, indicating a link farm designed to direct users to potentially malicious content. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and numerous external links suggest an attempt to redirect users to phishing sites or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7317

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 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
  • 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/aws?utm_term=parallel+processing+books+pdf PDF link annotation
    • https://luragelekow.weebly.com/uploads/1/3/4/3/134377287/dojif-balofume.pdfIn PDF document text
    • https://menudobuwowewil.weebly.com/uploads/1/3/4/7/134765252/ebf44.pdfIn PDF document text
    • http://komunomaled.iblogger.org/are_there_any_book_series_as_good_as_harry_potter.pdfIn PDF document text
    • http://fadomofikupiviv.iblogger.org/sojavarojogizeduvike.pdfIn PDF document text
    • https://kuginipa.weebly.com/uploads/1/3/4/8/134853520/lufevujimedumab.pdfIn PDF document text
    • https://nibiromevisike.weebly.com/uploads/1/3/5/2/135299411/jiwiveramowiwuxapeza.pdfIn PDF document text
    • https://juwujumatel.weebly.com/uploads/1/3/4/0/134042908/8626824.pdfIn PDF document text
    • https://linepofikoleku.weebly.com/uploads/1/3/4/4/134492010/fojowot.pdfIn PDF document text
    • http://jijimaxugixu.22web.org/answer_2019_gear.pdfIn PDF document text
    • http://vejofewi.iblogger.org/ginesapadewubatibuz.pdfIn PDF document text
    • https://rixafivi.weebly.com/uploads/1/3/1/3/131380000/5524b.pdfIn PDF document text
    • https://gakutuzopekok.weebly.com/uploads/1/3/4/6/134605442/65d1fccac.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/metadata_schema_template.pdfIn PDF document text
    • http://mukokulag.epizy.com/pevoxiram.pdfIn PDF document text
    • http://momugegunimex.rf.gd/marvel_comics_avengers_characters_list.pdfIn PDF document text
    • http://pamanivu.epizy.com/pediatric_appendicitis_score.pdfIn PDF document text
    • http://jufosuliz.epizy.com/alcoholism_treatment_guidelines.pdfIn PDF document text
    • http://sizixezaratog.rf.gd/32706100462.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/risofo.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/albertine_kayp_in_english.pdfIn PDF document text
    • http://nawupewiviziwik.rf.gd/9995137878.pdfIn PDF document text
    • http://luxoxuwaf.epizy.com/dd_3.5_artificer_handbook.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/can_a_treadmill_work_without_a_safety_key.pdfIn PDF document text
    • http://pisasegobure.epizy.com/how_to_get_alexa_to_make_a_fart_noise.pdfIn PDF document text