Malicious PDF — malware analysis report

Static analysis result for SHA-256 60aed049f4b89449…

MALICIOUS

PDF

86.0 KB Created: 2020-12-25 09:22:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3287989eb4875be73b76dc4c63b2653f SHA-1: 14c25bfcb913446a2c70fcdd5729517b0a4140c7 SHA-256: 60aed049f4b8944960a1ab430c49e5054570fdd661fe7941a945b0c061565f8b
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://trafffe.ru/strik?utm_term=3+point+shots+basketball PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418188/normal_5fccffd43a935.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459921/normal_5fad86895fadb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369501/normal_5f8bf1a6539ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423471/normal_5f9ddc67624c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390680/normal_5fad5b97d5409.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409616/normal_5f943828ac2e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414866/normal_5fb532df9311e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485173/normal_5fcaf8f4cd1f7.pdfIn PDF document text
    • https://lasemekesote.weebly.com/uploads/1/3/4/3/134314396/vebowomober-tuwosuniraf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485693/normal_5fbea204acdc5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/033537f6-dc0d-4dc4-b0df-d3708c0ca8d7/conan_exiles_crocodile_pet_location.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f34190c5-d7e5-4ece-9898-c3a0e8020932/kovoketasedafirexexirari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/832a512e-9bb8-4dce-9021-ea6a029f04f2/porras_militares_yo_soy_como_el_payaso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81064ef7-99c9-472e-b5e0-eb6bb757ff2d/wadakugagexufuzalejevipi.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/zaweterafi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86d7f555-de59-4e70-bc5d-084292efd6bb/91099904026.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/40728723483.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
    • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000103b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B9 5084 bytes
SHA-256: d82c284e03059d1af3205085a2469ca302a687ca3c3f2cbea23cc43726204421
font_01_sfnt_off000114fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114FA 11416 bytes
SHA-256: 2217703d093c7b3656f5c0d17cec0a4d36a3ebd627de3985dd64fbc5817e017d
font_02_sfnt_off00013bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BF0 6084 bytes
SHA-256: 0c3766dce408445f50e904d652c9326647873efe4fb22fffa238fb744f3c79a9

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