Malicious PDF — malware analysis report

Static analysis result for SHA-256 c68160ebe66ff037…

MALICIOUS

PDF

128.5 KB Created: 2022-06-08 04:04:57 +02:00 Authoring application: ukrcoo (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 3d5f0f21ec56e1c3b8108654238f38e0 SHA-1: 63ecd58c56f20fdf3a5f929e072112fd804dff4b SHA-256: c68160ebe66ff03711cac6aa555ac21db8f830e88b21511aeb31ebaf7b21a9d5
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of external links, many of which are categorized as a 'link farm' advertising cracked software. One of the embedded URLs, 'http://evacdir.com/phish/ZG93bmxvYWR8YXc0Tm5CbU5IeDhNVFkxTkRZME16TTFNSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/puttering.space.stefan.reimbursable.RWFzeSBTY3JlZW4gT0NSRWF?usacurling=improved', is flagged as a potential phishing URL. The presence of these links suggests the document's primary purpose is to redirect users to malicious or untrustworthy sites, likely for malware distribution or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0293

Heuristics 5

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://evacdir.com/phish/ZG93bmxvYWR8YXc0Tm5CbU5IeDhNVFkxTkRZME16TTFNSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/puttering.space.stefan.reimbursable.RWFzeSBTY3JlZW4gT0NSRWF?usacurling=improved PDF link annotation
    • https://www.pronitron.com/advert/record-anything-crack-with-registration-code/In PDF document text
    • https://fastlocalservices.com/locateip-crack/In PDF document text
    • https://portalnix.com/net-monitor-for-employees-pro-crack/In PDF document text
    • https://epkrd.com/mario-crack-free-win-mac/In PDF document text
    • https://tuinfonavit.xyz/?p=2249In PDF document text
    • http://cannabisrepository.com/wp-content/uploads/2022/06/BartVPN_Crack_With_Product_Key_Free_Download.pdfIn PDF document text
    • https://estalink.fun/upload/files/2022/06/ZTnTDS81eG4MYCjQUCwX_08_a2ac8d9ea733565395368634d7ea627d_file.pdfIn PDF document text
    • https://hafeztic.com/wp-content/uploads/2022/06/Friend_Bomber_formerly_Facebook_Devil__Crack__Free_X64_Updated.pdfIn PDF document text
    • https://zip-favor.ru/bez-rubriki/aya-audio-to-mp3-wma-aac-mp2-wav-ogg-m4a-amr-converter-crack-patch-with-serial-key-for-pc-updated-2022/In PDF document text
    • https://ibipti.com/wp-content/uploads/2022/06/TracerPlus_Connect.pdfIn PDF document text
    • https://one97.online/advert/celebrity-model-escort-in-ghaziabad/In PDF document text
    • http://bookmanufacturers.org/reghunter-crack-with-full-keygen-download-final-2022In PDF document text
    • https://boardingmed.com/2022/06/08/canyon-screensaver-crack-with-serial-key-april-2022/In PDF document text
    • http://www.rosesebastian.com/?p=3488In PDF document text
    • https://www.exploreveraguas.com/wp-content/uploads/2022/06/OpenWithView_Crack___Free_Download_April2022.pdfIn PDF document text
    • https://koalalauncher.com/wp-content/uploads/2022/06/margra.pdfIn PDF document text
    • http://shop.chatredanesh.ir/?p=18409In PDF document text
    • https://corvestcorp.com/wp-content/uploads/2022/06/egohedl.pdfIn PDF document text
    • https://northshorerealtysanpancho.com/advert/song-list-generator-129-549-crack-activation-code-download-mac-win/In PDF document text
    • https://monloff.com/isilo-6-3-2-crack-x64-2022-new/In PDF document text
    • https://www.pronitron.com/advert/record-aIn macro / runtime command snippet
    • 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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000230e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x230E 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4