Malicious PDF — malware analysis report

Static analysis result for SHA-256 e899c14e13d2f1cd…

MALICIOUS

PDF

77.3 KB Created: 2021-03-01 14:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aacfd5be3d85ec51226514b8518a45ab SHA-1: 5148b6b80a8441f75299888488d2171926d7ef7c SHA-256: e899c14e13d2f1cde13bb3febc137017dfd854f67a5139440309cdcde51cbab9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file functions as a link farm, containing numerous external URLs pointing to various domains, suggesting it's used to distribute phishing content or malware. The presence of multiple disposable hosting domains and link farm heuristics further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://golowaki.ru/wix?keyword=modern+carpentry+willis+h+wagner+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379612/normal_5fe29fcb1c967.pdfIn PDF document text
    • https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/godirugope.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/gcgfigJ/download_vitalsource_bookshelf_to.pdfIn PDF document text
    • https://cdn.sqhk.co/zurajekiviw/qvgglha/bizajifetijetaj.pdfIn PDF document text
    • https://suvewuvasalu.weebly.com/uploads/1/3/4/7/134762181/9742e3a74c9e78.pdfIn PDF document text
    • https://cdn.sqhk.co/faruretekiv/SlAUja4/piano_tile_the_music_anime_mod_apk.pdfIn PDF document text
    • https://nizifaweneli.weebly.com/uploads/1/3/4/5/134589853/nudezukudawepo.pdfIn PDF document text
    • https://wubedalenab.weebly.com/uploads/1/3/1/3/131383767/mibojibi.pdfIn PDF document text
    • https://cdn.sqhk.co/boxewemutox/jageij0/fopomode.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492593/normal_601a2e585f46a.pdfIn PDF document text
    • https://cdn.sqhk.co/fabupiguboxa/fgiihgi/mediaf_re_download_games.pdfIn PDF document text
    • https://lomameleni.weebly.com/uploads/1/3/4/5/134597964/miwaxet-fafovowoba.pdfIn PDF document text
    • https://webutukokixomuw.weebly.com/uploads/1/3/5/3/135317122/revubazirinatasanes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443342/normal_600dbfc3a8e95.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/g6haggk/launch_monitor_for_golf_simulator.pdfIn PDF document text
    • https://wojizenufojanog.weebly.com/uploads/1/3/4/7/134724603/3873318.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366666/normal_60246896ca214.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418170/normal_6000c1b27a769.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/ghiaYxk/berogepuvolu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496577/normal_5fe1d079b66c6.pdfIn PDF document text
    • https://cdn.sqhk.co/terexugureto/33hc8gc/gangs_of_london_review.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAC 5616 bytes
SHA-256: 42ea1416ae3117b7c14d0a2870f655b49fe2f91cc2602f43fb21a66c23d12c95
font_01_sfnt_off0000eee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE8 10512 bytes
SHA-256: b748c470cea8dfd6550ea5619e6e614ff5fb7c0329f1f930039a90ff05589e5d
font_02_sfnt_off00011313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11313 16064 bytes
SHA-256: 0b6d67ed6f7b9ca340f69bc1efbee2cf1faeb02ae856abbfc241c325d1d7b232