Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f564e7062fff02…

MALICIOUS

PDF

96.9 KB Created: 2021-06-26 15:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 3fcfb6d972ecb01bf2a7c1a3c3d8862a SHA-1: e56ffc6a3287e71e5c78a980a72e1bc992f01d58 SHA-256: 29f564e7062fff02a11830cddb006d809db774fc834f61fad31e21cfc5f8853a
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, directing users to multiple domains, many of which appear to be compromised WordPress sites. The embedded URLs suggest an attempt to lead users to phishing or malware download pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 6

  • 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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • 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 http://yournamebadges.com/withyourdog/cms_uploads/file/35973514410.pdf
    • https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/fb2ee46b219cc2f272a23e0a5a0350ea/53629766192.pdf
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac4ea28cfc---95433690573.pdf
    • http://fcv-bo.org/data/fcv-bo/userfiles/file/jazinubibeju.pdf
    • http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094d6e0baaba---kijokaravowexowaku.pdf
    • http://architettoseneca.com/userfiles/files/11277333999.pdf
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/3n31tjl4lemssvqrk97kohvv50/lubol.pdf
    • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/u9r92brkl6efsv91hpe5mi0ad8/83721707104.pdf
    • http://iccarrentals.com/files/file/59559366771.pdf
    • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16089da2816f32---suvilafurufoguneraxajidi.pdf
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/8777d27bdbbc0b35cfeb0be6c3564695/xufolikarujobepefisij.pdf
    • http://rogo-rotterdam.nl/files/42489721544.pdf
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/dc93f8f8d7e6abae95caaef695a7e1cf/rozud.pdf
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160811eb815036---77407527003.pdf
    • http://claphamtaxi.com/survey/userfiles/files/69097951827.pdf
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/9m8cpir2fhef8odume7pm6fj24/papisor.pdf
    • https://allmassage.net/upload/file/20210523175336.pdf
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/j56ohkmkhfnq39ojfrvvec5b9n/fupegetatozol.pdf
    • http://classicalgardenornaments.com/uplds/file/galaxomifugor.pdf
    • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac50b621dfc---dadutejuloselan.pdf
    • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/98ff08fa56f675f66d726a6180eefa1e/jofaviwuxowujefupeziran.pdf
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/058a91389e104e6b4bda27febc26f287/94836480382.pdf
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/igbvtu083va6r17h2rjss2fel2/94700198032.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=who+wants+to+live+a+million+years
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000116e4.bin
16f7095de03b62a00b82820ce02ef77ced8152b01aa98e7f4ea7d87fa690ba89
pdf-font-stream PDF embedded font (sfnt) at offset 0x116E4 10632 bytes
font_01_sfnt_off00012f12.bin
179cb7c36b8c3fe4895c31ff4d58980f134d6590633761c18cda526dbab8001e
pdf-font-stream PDF embedded font (sfnt) at offset 0x12F12 18104 bytes
font_02_sfnt_off00015e01.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x15E01 16792 bytes