Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2abdfb98633f34f…

MALICIOUS

PDF

151.0 KB Created: 2021-03-21 21:41:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e7d9d68d445fcb85003f0af6926a146b SHA-1: 5a28b4bc18d9308ab2b83d5007ba25c620be34b2 SHA-256: d2abdfb98633f34fb8a27727b99c85482d9cb61f7d9e7de7e6c782b4e6a77bba
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/wix?keyword=frat+letter+crossword+heaven PDF link annotation
    • https://xabejelowubi.weebly.com/uploads/1/3/2/6/132695530/xojirilezebar_fepibenoruxaj.pdfIn PDF document text
    • http://onatural.space/13120557816cpygx.pdfIn PDF document text
    • https://birobidusizal.weebly.com/uploads/1/3/4/6/134638138/8457a7a8ad8f.pdfIn PDF document text
    • http://betmoy57.com/think_rock_kevin_dettmar34asz.pdfIn PDF document text
    • https://zeleloda.weebly.com/uploads/1/3/0/7/130776222/refanopapole-sotezipokif.pdfIn PDF document text
    • http://presalon.xyz/jofugul9nzmw.pdfIn PDF document text
    • https://repitosa.weebly.com/uploads/1/3/2/6/132681506/e62d7d7e.pdfIn PDF document text
    • https://pojikajuruwasi.weebly.com/uploads/1/3/2/6/132695468/kavopatenalunoveli.pdfIn PDF document text
    • http://trafikcezaodebayisi.com/how_to_setup_playstation_3_remote_controlflcok.pdfIn PDF document text
    • https://tifixexeruwa.weebly.com/uploads/1/3/2/6/132682204/nasojoduzug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bb4e1df-0295-47e2-9c53-3f13d5e99246/71004562774.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43d5323a-48dc-4bf1-96b0-cf2155a43913/what_is_nj_927_form.pdfIn PDF document text
    • https://8650d040-a33d-467d-a608-6706f181f11b.filesusr.com/ugd/61b8bf_6d3d4b5ebb1a4a43b7f79d36ef903d52.pdf?index=trueIn PDF document text
    • https://a44a9d9e-3ce9-422e-9b5d-83ef2d4925cb.filesusr.com/ugd/3234e9_7a02dd6b8a1441ada4cd78072c741c44.pdf?index=trueIn PDF document text
    • https://f7b0ef4b-317e-4f07-901b-4de91a029b50.filesusr.com/ugd/50f142_a8dffd9823dd4f5ba698d941e47c5fc9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/using_geogebra_spreadsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0795fa71-2024-4cdc-b14c-d9307fa6a164/53895987163.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f44baf0-8285-4660-b7c6-120900a5917d/agile_software_development_programming_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8fdba01-f54c-41c2-82f3-6ee125119e60/scag_tiger_cat_mower_belt_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/php_mysql__javascript_all-in-one_for_dummies.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_off0002139e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2139E 5132 bytes
SHA-256: d46e92014ed226f23ce477cd24ea5d5ad7c4a3b47ff9e80436730acabce47226
font_01_sfnt_off0002251e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2251E 12544 bytes
SHA-256: 1a03f01be461aa6a577f05b07dbb19c36492d8331eeb0f7ae331d46b53dec5ff

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