Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d9eebb0fe90d6b…

MALICIOUS

PDF

76.3 KB Created: 2021-02-25 23:59:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9c0716616db2e594c0ea50d16b9450ba SHA-1: 184b031b43921dfb8baca747aee70a32d2716423 SHA-256: 10d9eebb0fe90d6b0cbdbdee50ddcc3a23b1f4df424bc0e576d526b0e5185283
156 Risk Score

Malware Insights

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

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 0.9998

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 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://leonvi.ru/123?utm_term=simulacra+and+simulation+jean+baudrillard+amazon PDF link annotation
    • https://lekaretuzej.weebly.com/uploads/1/3/0/7/130738752/jelumusaje.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/56996848773.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/how_many_books_are_there_in_total_in_the_catholic_bible.pdfIn PDF document text
    • http://bebetadiruj.mywebcommunity.org/hp_officejet_4630_e-all-in-one_printer_ink.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/iiiggfN/cramped_spaces_love_it_or_list_it.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/8giOMgf/f1_mobile_racing_mod_apk_download_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/pefisemise/ihKCjcX/11301098727.pdfIn PDF document text
    • https://fokutape.weebly.com/uploads/1/3/2/8/132814024/4562239.pdfIn PDF document text
    • https://zaxixeresez.weebly.com/uploads/1/3/1/8/131871416/rafokogazosovadeg.pdfIn PDF document text
    • https://zudabipepapob.weebly.com/uploads/1/3/4/6/134672750/sumekaporasejo_kipose_depuvudovab.pdfIn PDF document text
    • http://gexopidikimo.mygamesonline.org/2002_lexus_es300_battery_change.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/gedesisumi/71351295820.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/classification_of_matter_practice_assessment_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/9431454759.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/nba_2018_games_free.pdfIn PDF document text
    • http://galiwasik.rf.gd/jegirubadoludipiwaf.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCF 5456 bytes
SHA-256: b9392832eda4f57662e4b8f3d6f26cc386da3223ba1a338e10566ad2041206e4
font_01_sfnt_off0000ff44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF44 10824 bytes
SHA-256: 37ac923e6e38785cc0b626c50b9eafb80c30a9a3bbc8eb6f544069a3fdec998c

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