Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac3a35466eaec03…

MALICIOUS

PDF

83.0 KB Created: 2021-01-12 12:54:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 126ec00ed5345ac4fef2060f28135bc0 SHA-1: d0f21e7ce04f4df575b5eb88d0c7e7da03c80e02 SHA-256: 0ac3a35466eaec03631231194c61129b4db71667981f931d709b72047b40b4ed
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/aws?utm_term=lissandra+guide+op+gg PDF link annotation
    • https://cdn.sqhk.co/suwapipejob/ihfReLq/takikizutuxisiwafuwotesub.pdfIn PDF document text
    • https://site-1171851.mozfiles.com/files/1171851/black_friday_2020_laptop_deals_dell.pdfIn PDF document text
    • https://cdn.sqhk.co/kujusiru/zggLahh/52425730904.pdfIn PDF document text
    • https://site-1178332.mozfiles.com/files/1178332/86726325011.pdfIn PDF document text
    • https://cdn.sqhk.co/jasowipe/xgqiKii/30980815175.pdfIn PDF document text
    • https://site-1178097.mozfiles.com/files/1178097/2016_super_duty_towing_guide.pdfIn PDF document text
    • https://site-1177329.mozfiles.com/files/1177329/jekugiwifomulatenaberum.pdfIn PDF document text
    • https://site-1168031.mozfiles.com/files/1168031/dollar_deals_party_store.pdfIn PDF document text
    • https://site-1175000.mozfiles.com/files/1175000/classifying_numbers_chart.pdfIn PDF document text
    • https://site-1174886.mozfiles.com/files/1174886/broken_screen_live_wallpaper_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rizakumer/gfOdBge/58521898547.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/woxewiwupir/fha_hud_guidelines_4000._1.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/99439314578.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/diguvaxipibakubuwob.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/taller_equidad_de_genero.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/64338976329.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE63F 5036 bytes
SHA-256: b7ee2192af1a5d13ac5c32f26473cd2e7620907a3a0fb4ada0df66159d4577f3
font_01_sfnt_off0000f76a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF76A 2484 bytes
SHA-256: 9aaeb50130454c84fee42e1494a89d34af8b8ca8804036b276d3a1ed62df86e1
font_02_sfnt_off00010220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10220 11428 bytes
SHA-256: 42b9f05e87e74b941fc00f86bb309ec050295d806bc6cec047fe7a0d073e8871
font_03_sfnt_off0001294a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1294A 16140 bytes
SHA-256: ede53267573aabccc0642993b974bf4349571be6160c45b14e4805a016484c0b

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