Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69137dc6c6200c2…

MALICIOUS

PDF

84.8 KB Created: 2021-07-16 09:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: e4819d982bb678ad8e45d0f1e64bb645 SHA-1: e9ae92f2c08401f1cfa3e3dd3da7f05c6904d4ef SHA-256: c69137dc6c6200c216de43a02b56483e8417f661579821074023babb8dec57a8
196 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristic 'SE_PAYMENT_REDIRECT_LURE' strongly suggests a business-email-compromise pattern, where the document aims to trick the user into believing there are new payment instructions. Numerous embedded URLs point to various domains, many of which appear to be compromised or disposable hosting, further supporting a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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 https://smidgel.ru/uplcv?utm_term=movie+lottery+ticket+cast PDF link annotation
    • https://chiuman-hk.com/images/file/7587992120.pdfIn PDF document text
    • http://bekkercoon.ru/ckfinder/userfiles/files/21746642778.pdfIn PDF document text
    • https://davaocarrental.com/images/file/tixefixanodelunufi.pdfIn PDF document text
    • https://autoandtruckrepair.net/nbloom/fckuploads/file/12445136732.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/6cip4apur222jg8tr1qdsv84ds/29010647723.pdfIn PDF document text
    • http://zwickerfoto.hu/_user/file/mevivoladikekapuzokakaz.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/b410bca78ce18e449daee264e265d297/jibewenadutavozoroma.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac892e1f26c---89217934500.pdfIn PDF document text
    • https://eghamatkade.com/basefile/eghamatkadecom/files/wufovikexalurujulajakokig.pdfIn PDF document text
    • http://exclusivelimoservice.com/ckfinder/userfiles/files/folewuzimajozimesaxosakil.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/xuselaveki.pdfIn PDF document text
    • http://yossy.biz/userfiles/file/82902103002.pdfIn PDF document text
    • http://chinamakina.com/userfiles/file/xatuvesagumo.pdfIn PDF document text
    • http://studiogiamberardino.it/userfiles/files/23814465611.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f622fab3dc---gefafajutuboreluw.pdfIn PDF document text
    • https://rajakedua.com/contents//files/pikomexe.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/8b920809c4c6a75358b7799bddc91af7/xeparireguxat.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/265ff5a1d522ab64f23a1a507b0f2cfa/81162134531.pdfIn PDF document text
    • http://polimak.pl/userfiles/file/70983039316.pdfIn PDF document text
    • http://polletnv.be/uploads/files/75291955137.pdfIn PDF document text
    • http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d6a7d98fa---95359313373.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160806e3eede00---97521661484.pdfIn 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE5 10384 bytes
SHA-256: 1f5821d1b57b3bc9a5b1b9c78447fe63d53d7a1f2c76f4f02eb8b5559a90d414
font_02_sfnt_off0001169e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1169E 17536 bytes
SHA-256: 3d771bc6c212b93d0f34e853d3497687cb5f434f92d753c65a621347449c94d2

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