Malicious PDF — malware analysis report

Static analysis result for SHA-256 9566bb623aa6a3e9…

MALICIOUS

PDF

221.4 KB Created: 2021-03-24 14:56:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ebbea4be1dac1ed8e63f6fde954cd66d SHA-1: 5384b5930399cfe6eb6a2f3411ea1eda2f0a256d SHA-256: 9566bb623aa6a3e90539fc2686dd67479a34a9aa37a39fb24216e359f405ee35
96 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 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 0.8432

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://soxebez.ru/wix?keyword=rimfire+headstamp+guide PDF link annotation
    • https://topigofifudonif.weebly.com/uploads/1/3/5/3/135304546/5037223.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368229/normal_60075930ee0ee.pdfIn PDF document text
    • https://muwemobivom.weebly.com/uploads/1/3/0/7/130776082/c35fe7732cf9dc.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/he9Uhfd/jizedukisigosavisi.pdfIn PDF document text
    • https://gumikixinugud.weebly.com/uploads/1/3/4/8/134864359/xorofolimos_mogugexopebume_fezezuduw_filudapofulip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414848/normal_6005e98bd818c.pdfIn PDF document text
    • https://nizerekudoni.weebly.com/uploads/1/3/5/3/135383630/8eef0c6d07.pdfIn PDF document text
    • https://bovakexigi.weebly.com/uploads/1/3/5/3/135314068/voropo-gudugejizazit-tafuwezufomewo.pdfIn PDF document text
    • http://rosativiwam.mypressonline.com/wewosabupugevalapilunisov.pdfIn PDF document text
    • https://cdn.sqhk.co/sewiboveso/lW4yNls/pudoderumoz.pdfIn PDF document text
    • https://cdn.sqhk.co/bimepefav/g2icFhf/download_soccer_hero_java_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489595/normal_5fe4114aa5f06.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454681/normal_5fdf9c2ea91eb.pdfIn PDF document text
    • https://xekesaxi.weebly.com/uploads/1/3/4/3/134317917/bumabotikagefevezoju.pdfIn PDF document text
    • https://cdn.sqhk.co/rifokinimito/5hgjfge/8011191257.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/eHjhjc6/nisukibam.pdfIn PDF document text
    • https://cdn.sqhk.co/waxobakal/NDnUjjf/58543289728.pdfIn PDF document text
    • https://cdn.sqhk.co/tawibonikigo/gcy6gg7/78779858552.pdfIn PDF document text
    • https://cdn.sqhk.co/xotakuzazuf/iaqU4gw/hill_climb_racing_off_road.pdfIn PDF document text
    • http://tepifugamokeg.medianewsonline.com/alinco_dj-500_programming.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rosevasejila.myartsonline.com/pitaso.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off000342d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x342D5 19748 bytes
SHA-256: 4362ef19e5c4614f946eb13723f45040f18a6b665c71a56064b33e69197742e0
font_00_sfnt_off0002d048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D048 8800 bytes
SHA-256: 741b5f23222f33b5201e1fd8169585db22485be6ff3ca40a2f81d12c79f47985
font_01_sfnt_off0002e739.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E739 3552 bytes
SHA-256: 6834756c170536a8c480636e36122612a7f92c94f6daf54d20814d8f782c1c80
font_02_sfnt_off0002f3f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3F9 5428 bytes
SHA-256: e869d7956fff425eeeb772e3e1a0f8671ccdaaf99e8325f45a2d853cc0a4f307
font_03_sfnt_off0003064c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3064C 22704 bytes
SHA-256: ec8c6c8e062940c24e21dff806c89d7c874aac3e5b5a8a5a060830312d7ea929

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