Malicious PDF — malware analysis report

Static analysis result for SHA-256 875b48aff653a8a9…

MALICIOUS

PDF

130.4 KB Created: 2022-07-05 08:20:09 +00:00 Authoring application: elebev (via PDF Master 1.0.1) First seen: 2026-05-04
MD5: a939c84d279dc58ed3daeda614b4756e SHA-1: 954fe31ef7850b5063a61d3f07c33eb2db2bc1e8 SHA-256: 875b48aff653a8a993a8b2ece1cb01228c71650510df47b8534dfcd1899dc043
234 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 7

  • 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.
  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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://seachtop.com/sherin/flogged/follicle.UGhvdG9zaG9wIDIwMjEgKFZlcnNpb24gMjIuMS4xKQUGh?hooted=ZG93bmxvYWR8R2Q2T1hGbmFueDhNVFkxTmprNE1UVXdOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA PDF link annotation
    • http://xn----8sbdbpdl8bjbfy0n.xn--p1ai/wp-content/uploads/2022/07/Adobe_Photoshop_CS6.pdfIn PDF document text
    • https://xcconcepts.com/wp-content/uploads/2022/07/Photoshop_CC_2014.pdfIn PDF document text
    • https://thirdperspectivecapital.com/wp-content/uploads/2022/07/Adobe_Photoshop_EXpress_Incl_Product_Key_Free_Download_March2022.pdfIn PDF document text
    • https://boiling-peak-99188.herokuapp.com/Adobe_Photoshop_2021_Version_2251.pdfIn PDF document text
    • https://factorybraga.com/wp-content/uploads/2022/07/Photoshop_CC_2014-1.pdfIn PDF document text
    • https://immense-dusk-10695.herokuapp.com/Photoshop_2022_version_23.pdfIn PDF document text
    • http://estatesdevelopers.com/wp-content/uploads/2022/07/onilnikl.pdfIn PDF document text
    • https://alquilerdedepartamentoslima.com/wp-content/uploads/2022/07/Photoshop_2021_Version_222_keygen_only___Free_WinMac_Latest_2022.pdfIn PDF document text
    • https://thecryptowars.com/wp-content/uploads/2022/07/birign.pdfIn PDF document text
    • https://www.raven-guard.info/wp-content/uploads/2022/07/Adobe_Photoshop_CS5-1.pdfIn PDF document text
    • https://laissezfairevid.com/wp-content/uploads/2022/07/Adobe_Photoshop_2022_Version_2302_Registration_Code_Download_March2022.pdfIn PDF document text
    • http://clubonlineusacasino.com/wp-content/uploads/2022/07/Adobe_Photoshop_2021_Version_2242_Product_Key_And_Xforce_Keygen___Full_Version_MacWin.pdfIn PDF document text
    • https://searchlocal.ie/wp-content/uploads/2022/07/elegio.pdfIn PDF document text
    • https://www.smallblackowned.com/wp-content/uploads/2022/07/Photoshop_2022_Serial_Number__Activator.pdfIn PDF document text
    • https://shrouded-taiga-95335.herokuapp.com/Photoshop_2022.pdfIn PDF document text
    • https://kampungkbpucangsawit.com/wp-content/uploads/2022/07/lelneil.pdfIn PDF document text
    • https://aarbee.se/wp-content/uploads/2022/07/Photoshop_2021_Version_2243_Crack__Serial_Number___Download_PCWindows.pdfIn PDF document text
    • https://fajas.club/wp-content/uploads/2022/07/Photoshop_CS3_Crack_Patch__With_Full_Keygen_For_PC_Latest.pdfIn PDF document text
    • https://thirdperspectivecapital.com/wp-content/uploads/2022/07/Adobe_Photoshop_EXpress_Incl_ProIn PDF document text
    • https://alquilerdedepartamentoslima.com/wp-content/uploads/2022/07/Photoshop_2021_Version_222In PDF document text
    • https://laissezfairevid.com/wp-content/uploads/2022/07/Adobe_Photoshop_2022_Version_2302_RegisIn PDF document text
    • http://clubonlineusacasino.com/wp-content/uploads/2022/07/Adobe_Photoshop_2021_Version_2242_In PDF document text
    • https://www.smallblackowned.com/wp-In PDF document text
    • https://aarbee.se/wp-content/uploads/2022/07/Photoshop_2021_Version_2243_Crack__Serial_NumberIn PDF document text
    • https://fajas.club/wp-In PDF document text
    • http://seachtop.com/sherin/flogged/follicle.ughvdg9zag9widiwmjegkfzlcnnpb24gmjiums4xkqugh?hooted=zg93bmxvywr8r2q2t1hgbmfuedhnvfkxtmprne1uvxdoshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbdaIn PDF document text
    • http://clubonlineusacasino.com/wp-content/uploads/2022/07/adobe_photoshop_2021_version_2242_product_key_and_xforce_keygen___full_version_macwin.pdfIn PDF document text
    • https://casuppdxinunfalte.wixsite.com/tailuvara/post/photoshop-2022-product-key-patch-with-serial-key-freeIn PDF document text
    • http://kithuntu.yolasite.com/resources/Adobe-Photoshop-CC-2015-Version-16-Mem-Patch--Latest-2022.pdfIn PDF document text
    • https://wakelet.com/wake/ewXos9rkNOc0T6rZvWypnIn PDF document text
    • https://tusiparcoobikox.wixsite.com/minseonatab/post/adobe-photoshop-2021-version-22-with-license-key-april-2022In PDF document text
    • http://topacen.yolasite.com/resources/Photoshop-2022-Version-2341-Key-Generator--Free-Registration-Code-For-PC.pdfIn PDF document text
    • https://trello.com/c/kNnT407m/89-photoshop-2021-version-2251-crack-mega-freeIn PDF document text
    • https://trello.com/c/eN2s3jwl/55-adobe-photoshop-2022-version-2302-keygen-activation-code-win-mac-2022In PDF document text
    • https://nimbusrehak349571.wixsite.com/pensmyquabal/post/photoshop-2021-version-22-4-3-serial-key-torrent-latest-2022In PDF document text
    • https://wakelet.com/wake/oGaFxkqHp2-I5WCDlt7o0In PDF document text
    • https://trello.com/c/t6NUE8Jb/142-photoshop-2021-version-2200-serial-key-win-mac-april-2022In PDF document text
    • https://wakelet.com/wake/M95nTJJ8BDtzGF4blXi4oIn PDF document text
    • https://wakelet.com/wake/e3QYomfCmIFHW_fgwkCowIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://casuppdxinunfalte.wixsite.com/tailuvara/post/photoshop-2022-product-key-patch-with-serial-In PDF document text
    • http://kithuntu.yolasite.com/resources/Adobe-Photoshop-CC-2015-Version-16-Mem-In PDF document text
    • https://tusiparcoobikox.wixsite.com/minseonatab/post/adobe-photoshop-2021-version-22-with-In PDF document text
    • http://topacen.yolasite.com/resources/Photoshop-2022-Version-2341-Key-Generator--Free-In PDF document text
    • https://trello.com/c/eN2s3jwl/55-adobe-photoshop-2022-version-2302-keygen-activation-code-win-In PDF document text
    • https://nimbusrehak349571.wixsite.com/pensmyquabal/post/photoshop-2021-version-22-4-3-serial-In 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
    +6 more URL(s)
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DAE 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000c59a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC59A 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261