Malicious PDF — malware analysis report

Static analysis result for SHA-256 44732967d77e6059…

MALICIOUS

PDF

76.6 KB Created: 2021-02-26 05:09:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 991f3ca7093c47b0a441d8da4741a882 SHA-1: 274a5f70ab4066fdb3801430e84ccb21b1649989 SHA-256: 44732967d77e6059adf80c966de0399150f2bc64911c0ea19ddc678312782446
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple links to external websites, with at least one identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to an ebook, likely intended to trick users into clicking the malicious links. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/strik?utm_term=your+health+today+6th+edition+ebook In PDF document text
    • http://xiwakaravivomik.scienceontheweb.net/57524433390.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/los_censores_luisa_valenzuela.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/how_to_integrate_sin2xdx.pdfIn PDF document text
    • https://zutiwijutorezaz.weebly.com/uploads/1/3/4/3/134354078/9561947.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/5517861460.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/fomolo.pdfIn PDF document text
    • http://nigavereke.mygamesonline.org/pumped_up_kicks_piano_sheet_music.pdfIn PDF document text
    • https://zunenevalomedo.weebly.com/uploads/1/3/4/8/134855990/8315350.pdfIn PDF document text
    • https://fapojenulexo.weebly.com/uploads/1/3/1/3/131383319/jukizes.pdfIn PDF document text
    • http://didazema.mypressonline.com/51340426815.pdfIn PDF document text
    • http://goligofalu.medianewsonline.com/wusanelejidozetujapepufo.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/xaxuminakeduwofu.pdfIn PDF document text
    • https://cdn.sqhk.co/xomakonezema/ijQUujI/galusubawolafotawikelakep.pdfIn PDF document text
    • https://cdn.sqhk.co/fifapupifig/ifjc5ge/warrior_cats_online_game_free_download.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/petisaziwewajisegudigi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://japinoxizidunub.myartsonline.com/sandisk_clip_sport_firmware_download.pdfIn PDF document text
    • http://nosigegu.onlinewebshop.net/what_is_art_of_communication.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0000d924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD924 5156 bytes
SHA-256: 000061e3e9709b199ca178ad8fdbbbb22be676b38ca3563c656cbb59b0169a91
font_01_sfnt_off0000eaaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAA 10860 bytes
SHA-256: b9d36fc3d02528660664d4570695a23d234387f2873312e438c7c329fe21e28b
font_02_sfnt_off00010fff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FFF 16084 bytes
SHA-256: 29b8095464fa9501f2379a4c43ca3ba1b1df604f87f2abcbe11fa9bdafb8ec10

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