Malicious PDF — malware analysis report

Static analysis result for SHA-256 2012aafd78e56ff2…

MALICIOUS

PDF

75.4 KB Created: 2021-05-17 00:42:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9fb7fdbc7090e7e708db582f42543126 SHA-1: 71c654475afa05d1a439472fd316a4cb80c30f25 SHA-256: 2012aafd78e56ff20e2ec64a389a2d6e5068d0e78ffeeeab84bcce87d7804292
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9991

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 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://dugedepap.ru/strik?utm_term=asus+rampage+v+extreme+price PDF link annotation
    • http://bexowobiminefi.mywebcommunity.org/lutuzowevesawopizozeji.pdfIn PDF document text
    • https://cdn.sqhk.co/xebosulog/zUghgZb/learn_to_draw_cartoon_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/mimotulifoti/Bxgfuec/goalrilla_basketball_goal_pad.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/nfl_2015_schedule_excel_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/nonuripot/ggDic6C/science_board_games_project.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/woxorojero/49698126404.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/xiaomi_mi_a2_lite_android_one_32gb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42dafc46-e441-4dff-9d65-6a45707e4a41/how_to_use_google_classroom_video.pdfIn PDF document text
    • https://f270a619-8d23-4dc9-95fa-a4320df4b75e.filesusr.com/ugd/7bd364_d6ee561434da46bfa3b5b3be0ef447ff.pdf?index=trueIn PDF document text
    • http://powagamojij.onlinewebshop.net/active_learning_and_passive_learning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93d3ebe9-626e-4a75-819c-d1b2f07cc2dc/betizuwurex.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/bitdefender_cracked_apk.pdfIn PDF document text
    • http://zakefuki.myartsonline.com/28512208992.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/honda_fg110k1at_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/graphing_rational_functions_worksheet_2_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a977e1d-83d2-439a-ac3f-d98f6ba9aa59/what_words_begin_with_ox.pdfIn PDF document text
    • https://979cd01f-16ea-4d2c-b189-234964c95597.filesusr.com/ugd/d4c4cf_41a76930a1cf4590b074e14622e2cde4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/748d76f3-2e1b-49ce-8371-bd660b5c5e8a/the_kid_who_ran_for_president_activities.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7623da5f-4efd-4c9b-98a1-682a3be727b3/rock_band_4_drums_ps4_walmart.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/nnmc_wramc_wound_dressing_selection_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/petatalerifawexozib.pdfIn PDF document text
    • https://s3.amazonaws.com/padanivozeb/ma_challan_form_punjab_university.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/fl_studio_para_macbook_air.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/31525354606.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_off0000e820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE820 5336 bytes
SHA-256: 883e51b7185aacdc03200064d18b7cc0bd9c7dc7caebe7c732440bbff8440441
font_01_sfnt_off0000fa3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3F 11072 bytes
SHA-256: 3ad1099a5c4f5e85de4f031eafac5f4552632c99fbe3678de726e21e56270db7

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