Malicious PDF — malware analysis report

Static analysis result for SHA-256 ada38814749f0a17…

MALICIOUS

PDF

78.1 KB Created: 2021-06-15 17:17:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 03ca1039286b6712b1936acac72c8add SHA-1: 7a77d828f82567400672701c55c0f0e1f5982649 SHA-256: ada38814749f0a1752899600a079e47853c40d054460b4ecade43cdf055bcf69
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8981

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://philabc.ru/uplcv?utm_term=download+wild+rift+apk+obb PDF link annotation
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/63bcb675ed47d509b9e9995d9a0cfa1a/xekuve.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f212d0e7ff---gowuwodikaxe.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/xobajavaperomedomuwam.pdfIn PDF document text
    • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/8f4840b6ac0283be65eb7a4460debaca/14742249258.pdfIn PDF document text
    • http://sakem.org/userfiles/files/28573721332.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/ce908b70dc5c79773a42a650dddd44e3/14131988944.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/10482024170.pdfIn PDF document text
    • https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a51c8a364c0---pifoxagerik.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/2m11u758o10dhgn1jjjcu320ks/fenuluserabij.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dfc0871d1dadc7637221164f510b58ff/bajemaxofuxu.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/spnr1c2n4u26gc9lm97n5u8ck6/1773167635.pdfIn PDF document text
    • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/4k7oeqh90fr1sq93jv8eigf2rp/fumexakifinuvutaxiboz.pdfIn PDF document text
    • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b285db1a6---tafalaxanasewu.pdfIn PDF document text
    • https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/9126crdp7etc0pgid6pej0l862/54187944620.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE376 4824 bytes
SHA-256: 6ea609934c09c6c6d62855530fc02c5bc6b186b1842759f1b31a74c5a2e77af8
font_01_sfnt_off0000f3f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F1 10792 bytes
SHA-256: 6de9ab5c92aa27d235f2832bb9a8d9584936734fbfc798196fb4a400e23ee6b3
font_02_sfnt_off000118ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118EF 16100 bytes
SHA-256: 541354b79b1ff48dfb4b3d6c13c5dda0e41883a4e113502b2b90eeb89a3bb967
font_03_sfnt_off00012dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DAE 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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