Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe445233495f665f…

MALICIOUS

PDF

78.0 KB Created: 2021-03-31 00:51:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 89b543ffb901aa5855d9b0fe7cd16fda SHA-1: 1647b0e062ba5b4e8f849f25bd38c8e7df188988 SHA-256: fe445233495f665fe0004a9946ccf1aa832b641a551ca2a489674be19a40e972
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 0.9996

Heuristics 5

  • 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.
  • 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://lozipotod.ru/wix?keyword=cellular+respiration+an+overview+pogil+answers PDF link annotation
    • https://vimexizud.weebly.com/uploads/1/3/4/7/134755563/ac3dee.pdfIn PDF document text
    • https://wudowured.weebly.com/uploads/1/3/0/8/130873715/totipokadaj.pdfIn PDF document text
    • https://nagipunewemog.weebly.com/uploads/1/3/5/3/135315215/011d9d12779613b.pdfIn PDF document text
    • https://todatotosikuped.weebly.com/uploads/1/3/0/7/130740429/e3ee34d267b7c5.pdfIn PDF document text
    • https://botamelojobowi.weebly.com/uploads/1/3/5/3/135344227/4967216.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/994fddff-939d-47f2-8180-f1a6ba848cd3/is_cyberpower_a_good_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/turoxomopazonafikule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/708bbd9e-45e1-4a17-9350-351b4e028954/how_to_fill_rent_receipt_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/42241628009.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/rabebojo.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/74362092898.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/xilinx_fpga_programming_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c47552d9-a35e-4e99-8c66-8176b8611135/apprendre_le_grammaire_franais_gratuitement.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/ielts_speaking_test_practice.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/how_to_connect_turtle_beach_px4_to_ps4.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/87009367267.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/the_hunger_game_movie_download_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/julius_evola_ride_the_tiger_review.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/33471087042.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f317723-e574-4407-a3bf-a1b837f0898b/blank_fraction_strips_printable_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/xanibi.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/46343691325.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30F 5044 bytes
SHA-256: 472cf3e21a60719051d8b4e33cd3824f1f3b83ab5d65e24eec3668998500aa6b
font_01_sfnt_off0001045a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1045A 10760 bytes
SHA-256: 6b49fcaaeae0e604ff4035fcd055a2d9f60a5ad2c8f821a7f1613f5ea18bb47b

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