Malicious PDF — malware analysis report

Static analysis result for SHA-256 9adb87540057f737…

MALICIOUS

PDF

74.3 KB Created: 2021-02-09 09:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2ee41ba9f77ab5d3a9d0b7c1eae002f9 SHA-1: 95fbc27fb409543f69652227c728e830496ce299 SHA-256: 9adb87540057f737d94724a51b218d754d651a0caadf925aaf6aa865cddf0df9
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to potentially malicious domains, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the structure and heuristics point towards a malicious PDF designed to redirect users to compromised or attacker-controlled sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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.
  • 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/123?utm_term=crashplan+linux+log+files PDF link annotation
    • https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/d05ad8b4.pdfIn PDF document text
    • https://bijesuvudapij.weebly.com/uploads/1/3/1/8/131860553/dajimaketezasewo.pdfIn PDF document text
    • https://zirodamabesad.weebly.com/uploads/1/3/0/7/130740068/6472253.pdfIn PDF document text
    • https://nedugapepo.weebly.com/uploads/1/3/4/2/134265444/faxebefud_pizamunowog.pdfIn PDF document text
    • https://rubuvewoxuvima.weebly.com/uploads/1/3/4/8/134873715/lasor.pdfIn PDF document text
    • https://fatatarulawug.weebly.com/uploads/1/3/4/4/134474158/sutojezuriwedoxazu.pdfIn PDF document text
    • https://leximefowa.weebly.com/uploads/1/3/2/6/132680903/xenuferasi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://madanekobovuge.epizy.com/patuxiziwivopotupelewiv.pdfIn PDF document text
    • http://nawokuzowurib.epizy.com/divorce_cases_kenya_law_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/article_a_an_the_questions_and_answers.pdfIn PDF document text
    • http://pijularof.epizy.com/approximately_synonym_formal.pdfIn PDF document text
    • http://xenemusexo.epizy.com/overwatch_doomfist_guide_deutsch.pdfIn PDF document text
    • http://jozixal.epizy.com/62232950596.pdfIn PDF document text
    • http://wajodojizofe.epizy.com/57258161727.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/mekugemobavun.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/58485429788.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/1819040803.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/movies_counter_punjabi.pdfIn PDF document text
    • http://bufarudewigufeb.rf.gd/chidinma_fallen_in_love_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/beach_buggy_mod_apk_rexdl.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/manualidades_faciles_de_vender.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/adaptive_radiation_in_reptiles.pdfIn PDF document text
    • http://rezazaje.epizy.com/chal_chaiya_chaiya_songs.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_off0000e561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE561 5136 bytes
SHA-256: cb1dcecb6d5ee3fd2e8210d7e78596211a93f3f3c935384d6eda5b2e416cecce
font_01_sfnt_off0000f6dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DC 10824 bytes
SHA-256: 911da043929393268fd7e8d9c236371500bfd9a9741fec7e2be9ce0addd0c226

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