Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f5cef45eff87e02…

MALICIOUS

PDF

87.1 KB Created: 2021-03-20 10:45:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 4a38a2c7be579c4cc319adc834f98ae9 SHA-1: 21ef91076241e74d50b56392695f332cebd7dc82 SHA-256: 0f5cef45eff87e022b9b8e4626db773648d0fb6dc08eb8c16045a3c437ec79b2
156 Risk Score

Malware Insights

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

This PDF document contains numerous external links, a common tactic for SEO spam and phishing. The primary URL, 'https://maypoin.ru/wix?keyword=which+directv+satellite+to+aim+for', suggests a lure to a malicious website disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=which+directv+satellite+to+aim+for PDF link annotation
    • https://cdn.sqhk.co/puburasar/oGgeamH/xupedupejabowowiju.pdfIn PDF document text
    • https://cdn.sqhk.co/famagafe/Tif7Xy3/jiverufovom.pdfIn PDF document text
    • https://cdn.sqhk.co/rowemarul/jsxCB0q/oscar_fish_tank_mates.pdfIn PDF document text
    • http://fotodosajube.22web.org/vaponixajugosujunogi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7abf9d2d-ec2f-4860-8b12-8c19c189575b/31267912916.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/biology_class_12.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/another_story_video_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/227411488.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e63a1aa-e570-4fce-8a7c-d71640fdc26f/deninamowixaximemoto.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/kumavudojuxalufivuvoxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/644dffda-da91-4bbc-bc08-dc47c82451ad/masuluxo.pdfIn PDF document text
    • http://xakireponamo.rf.gd/womojasunofidiwonopa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd4e85d1-86e0-46fb-a579-5f4dd123b703/motorola_ht750_car_charger.pdfIn PDF document text
    • https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_aa6900cd3b1f4db385510a6d5e7e3634.pdf?index=trueIn PDF document text
    • https://b46c4cda-4951-41c0-816f-bbf02eee4d9b.filesusr.com/ugd/4ff992_48b1a55070e140a382fcfe020ade5d2e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/baxunaf/asu_major_map_psychology.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/service_agreement_template_word_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee08527d-2efb-424e-aa50-da7862a7cfda/physiology_textbook_ak_jain.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/43647459403.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/74276253097.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10786 5016 bytes
SHA-256: 5ed03ee4f54090fa6adf38b6c30e4abc60dd65558fdebe4fc1f3c7b7a84d8188
font_01_sfnt_off000118a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118A2 11532 bytes
SHA-256: 2e42e0b7d95131298dc1563535f87714b558d2defd194e7512b5700667ab8fa8
font_02_sfnt_off00013f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F4E 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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