Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe07b15a6579c70e…

MALICIOUS

PDF

75.5 KB Created: 2021-02-15 08:40:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a8e8e071eb981d35931a5b77d56a4b35 SHA-1: eb18173d57b7f5fbfd70053a81bc065d2a402201 SHA-256: fe07b15a6579c70e91cc1f63bf40579d0dd99cfa564fa89fa21ef013089a3da8
164 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 a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/aws?utm_term=grammarly+app++iphone PDF link annotation
    • https://lirukasuk.weebly.com/uploads/1/3/0/7/130739032/4506349.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/Fgd0Uls/sikusugejaluzez.pdfIn PDF document text
    • https://cdn.sqhk.co/pugudanirav/bgdhahe/boomerang_app_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/Q0Wghp8/neon_snake_print_mesh_top.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzufoxo/ee36TQD/trackitt_485_receipt.pdfIn PDF document text
    • https://cdn.sqhk.co/wabajevebe/egcBRN9/mekorama_level_30.pdfIn PDF document text
    • https://cdn.sqhk.co/dusimefosix/P1vhdie/rerududujiralok.pdfIn PDF document text
    • https://cdn.sqhk.co/wejideduv/aIPbTmT/english_to_spanish_offline_dictionary_free_download.pdfIn PDF document text
    • https://pixerogamaba.weebly.com/uploads/1/3/1/8/131871590/8017982.pdfIn PDF document text
    • http://ital-tess.space/airborne_death_from_above_t_shirts6fl1w.pdfIn PDF document text
    • https://cdn.sqhk.co/fubafonu/BjgIHjj/pafasewakuvetaxe.pdfIn PDF document text
    • https://cdn.sqhk.co/gotoruzud/OjaZjji/stick_fight_2_infinity_mod.pdfIn PDF document text
    • https://lemusudavigi.weebly.com/uploads/1/3/5/3/135395292/witinuti-jibisasini-neribunaxi-fuwaged.pdfIn PDF document text
    • https://luwagibefex.weebly.com/uploads/1/3/5/9/135966535/8219449.pdfIn PDF document text
    • https://cdn.sqhk.co/jawutuwek/hey47jg/figede.pdfIn PDF document text
    • https://cdn.sqhk.co/sawibevas/Lie7jfO/febexojigazepifomi.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/1hbicH8/bubble_sourdough_starter.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutesilo/Thaidic/babylist_welcome_box_review.pdfIn PDF document text
    • https://cdn.sqhk.co/dusaradezat/DQcjchb/54116924077.pdfIn PDF document text
    • https://cdn.sqhk.co/nisosawero/jdA15jc/download_samurai_vs_zombies_defense_2_for_pc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ec14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC14 5012 bytes
SHA-256: 87dae0c2c7a3261568bef3bc65226c2e98d39caf83304b69272b3307a0310fb7
font_01_sfnt_off0000fcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFC 10600 bytes
SHA-256: 630c0998f8266c9c097636de7676ea177ba84fbdfb4b990b8f939df27ef893ad

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