Malicious PDF — malware analysis report

Static analysis result for SHA-256 a58b5a19141f4c1a…

MALICIOUS

PDF

138.4 KB Created: 2022-07-07 22:31:29 +00:00 Authoring application: eleaalta (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 3d21e4a590c45d9e5213ecfca896a9f0 SHA-1: 8c0ba4e648a2c0ad686e9df44d653a477f34c84f SHA-256: a58b5a19141f4c1a919259d4da17ae31013cc9e72026067aa52b6cefc2487fbe
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which advertise cracked software, indicating a lure for users seeking pirated applications. One of the embedded URLs, http://find24hs.com/, appears to be a staging point for further malicious activity, potentially leading to a second-stage payload download. The presence of numerous SEO-optimized links suggests an attempt to attract victims through search engines.

Machine Learning

  • Nyx PDF Classifier clean score 0.0087

Heuristics 4

  • 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.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://find24hs.com/?carri=/volatilization/carvers/jason/shipwreck/morven/oviparous/ZG93bmxvYWR8b3o1Tm0xNmRIeDhNVFkxTnpFNE5qazFOWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA.bGlnYSAxIHJvbWFuaWEgZmlmYSAxMyBkb3dubG9hZCB0b3JlbnQbGl PDF link annotation
    • https://financetalk.ltd/audioeasealtiverb7xl726vstaaxx86x642016-portable/In PDF document text
    • https://designfils.eba.gov.tr/blog/index.php?entryid=84521In PDF document text
    • https://questionnaire.ur.ac.rw/sites/default/files/webform/repotingdocs/amiquote-3-12-crack-14.pdfIn PDF document text
    • https://playerclub.app/upload/files/2022/07/DqMqtHnrbiKfBy1zDgCG_08_a0e1fe7d089a31dc9ed84c159f2c48bc_file.pdfIn PDF document text
    • https://poetbook.com/upload/files/2022/07/mBsw9i16VrIC52yBYPU6_07_7e05b402f9206fc2a6a248b6ede106d2_file.pdfIn PDF document text
    • https://www.careion.be/sites/default/files/webform/glegas241.pdfIn PDF document text
    • https://www.reperiohumancapital.com/system/files/webform/safran-morpho-mso-1300-e-software-587.pdfIn PDF document text
    • http://palladium.bg/wp-content/uploads/2022/07/Adobe_Photoshop_Cs5_Extended_V12_Keygen_FREE_Only_Embrace_Deantjah.pdfIn PDF document text
    • https://revitiq.com/wp-content/uploads/2022/07/Rustangelo_PRO_Basic_Torrent_Download_Extra_Quality_Crack_Serial_Key.pdfIn PDF document text
    • https://panda-app.de/upload/files/2022/07/175Rbsk2nfBVgQx8luTm_07_a0e1fe7d089a31dc9ed84c159f2c48bc_file.pdfIn PDF document text
    • https://forms.miis.edu/system/files/webform/fabrwayn111.pdfIn PDF document text
    • https://influencerstech.com/upload/files/2022/07/KDJ6qpA4rIwjADJxO4Vt_07_a0e1fe7d089a31dc9ed84c159f2c48bc_file.pdfIn PDF document text
    • https://moodle.ezorock.org/blog/index.php?entryid=8170In PDF document text
    • https://escuelainternacionaldecine.com/blog/index.php?entryid=3554In PDF document text
    • https://wakandaplace.com/wp-content/uploads/2022/07/wylkata.pdfIn PDF document text
    • https://www.tailormade-logistics.com/sites/default/files/webform/edwaari813.pdfIn PDF document text
    • http://countrylifecountrywife.com/philta-xl-vst-download-crack-extra-quality/In PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/leiben290.pdfIn PDF document text
    • https://playerclub.app/upload/files/2022/07/DqMqtHnrbiKfBy1zDgCG_08_a0e1fe7d089a31dc9ed84c1In PDF document text
    • https://poetbook.com/upload/files/2022/07/mBsw9i16VrIC52yBYPU6_07_7e05b402f9206fc2a6a248b6In PDF document text
    • https://www.reperiohumancapital.com/system/files/webform/safran-morpho-mso-1300-e-In PDF document text
    • http://palladium.bg/wp-content/uploads/2022/07/Adobe_Photoshop_Cs5_Extended_V12_Keygen_FREEIn PDF document text
    • https://revitiq.com/wp-content/uploads/2022/07/Rustangelo_PRO_Basic_Torrent_Download_Extra_QuaIn PDF document text
    • https://panda-app.de/upload/files/2022/07/175Rbsk2nfBVgQx8luTm_07_a0e1fe7d089a31dc9ed84c15In PDF document text
    • https://influencerstech.com/upload/files/2022/07/KDJ6qpA4rIwjADJxO4Vt_07_a0e1fe7d089a31dc9ed8In PDF document text
    • https://wakelet.com/wake/UCc7x0gvcOc2YpEhEV968In PDF document text
    • https://olegot4zus.wixsite.com/visvadema/post/full-hd-video-songs-1080p-hindi-ishq-junoon-linkIn PDF document text
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_011_off0001b024.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B024 119072 bytes
SHA-256: df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7