Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f17a0bcd9badd62…

MALICIOUS

PDF

126.5 KB Created: 2022-06-09 01:33:28 +02:00 Authoring application: shardem (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 96e799791f120e07e134835afa3375b0 SHA-1: b1ffce9ad5f9499f5970881b928e7084cd471148 SHA-256: 0f17a0bcd9badd624798f4b2b0f27a0c5c49e6fc68e36bee4e6ce0e5563cece7
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which advertise cracked software, indicating a lure to potentially malicious websites. One of the embedded URIs, http://evacdir.com/, is directly associated with this link farm. The presence of numerous external links suggests an attempt to drive traffic to potentially compromised or malicious sites for further payload delivery or phishing.

Machine Learning

  • Nyx PDF Classifier clean score 0.0296

Heuristics 4

  • 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.
  • 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/?RmlmYSAxNSBUdXJrY2UgWWFtYSBWNCBJbmRpcgRml=curtin&lashes=measures&enhanced=ZG93bmxvYWR8NUVoWVhCOGZERTJOVFEzTXpBNE9EWjhmREkxTnpSOGZDaE5LU0J5WldGa0xXSnNiMmNnVzBaaGMzUWdSMFZPWFE&
    • https://lms.kincatonly.com/blog/index.php?entryid=8875
    • https://midwestherbaria.org/portal/checklists/checklist.php?clid=75957
    • https://www.palpodia.com/upload/files/2022/06/wg8Dqw9VaYxi4KRYzNOc_08_c08ae4b160f201fae435ad92d3abf2bd_file.pdf
    • https://sheltered-citadel-14980.herokuapp.com/kellaur.pdf
    • https://www.riseupstar.com/upload/files/2022/06/kxhNghIPPNWBvW24QO8f_08_308c3448ce95cb8e3a2e6cf7f600bd78_file.pdf
    • https://midatlanticherbaria.org/portal/checklists/checklist.php?clid=75958
    • https://globaldefence.team/wp-content/uploads/2022/06/Shubh_Mangal_Saavdhan_The_Movie_English_Sub_1080p_Torrent_TOP-1.pdf
    • https://nisharma.com/wp-content/uploads/2022/06/CRACK_Hallmark_Card_Studio_2018_Deluxe_19011_Content__CrackzSoft_2021.pdf
    • https://willysjeepklubb.se/advert/dead-space-3-eboot-fix-3-55-12/
    • https://educa.neurolabbo.com/blog/index.php?entryid=760
    • https://pteridoportal.org/portal/checklists/checklist.php?clid=10731
    • http://co-creacion.mx/comparte/blog/index.php?entryid=20
    • https://classifiedonline.us/advert/pes-5-vs-pes-6-crack/
    • https://setevende.com/wp-content/uploads/2022/06/freedownloadfullmoviedhoom3mp4movies.pdf
    • https://cotram.org/checklists/checklist.php?clid=23934
    • https://mommark-landsby.dk/wp-content/uploads/hallenri.pdf
    • https://lichenportal.org/cnalh/checklists/checklist.php?clid=17701
    • https://vape87.ru/advert/pharaoh-cleopatra-crack-code-activation/
    • https://www.nansh.org/portal/checklists/checklist.php?clid=75959
    • https://www.palpodia.com/upload/files/2022/06/wg8Dqw9VaYxi4KRYzNOc_08_c08ae4b160f201fae435ad92d3abf2bd_file.p
    • https://www.riseupstar.com/upload/files/2022/06/kxhNghIPPNWBvW24QO8f_08_308c3448ce95cb8e3a2e6cf7f600bd78_file
    • https://globaldefence.team/wp-
    • https://nisharma.com/wp-
    • https://platform.blocks.ase.ro/blog/index.php?entryid=2373
    • http://www.tcpdf.org
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00001255.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1255 120140 bytes

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