Malicious PDF — malware analysis report

Static analysis result for SHA-256 69886244232bed1e…

MALICIOUS

PDF

102.9 KB Created: 2021-09-06 02:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 072af1c8b0d4459810379a1af4b5777c SHA-1: 6db4834c9b1e9c4108b53067b7a2fa079d0736fe SHA-256: 69886244232bed1ee3d6845129f8a949013c3f499a563499eee26d7a34cd351c
156 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, aligning with the characteristics of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://chipublichouse.com/ckfinder/userfiles/files/69435431857.pdf In PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/110fba88a3e66c135ca9768915ee9d44/napebutulupun.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/files/nadoxe.pdfIn PDF document text
    • http://woodwork.pl/ubezpiecz/obrazy/file/sibagiviwo.pdfIn PDF document text
    • http://vizit-k.net/uploads/editor/files/weluwowidowudezufowemu.pdfIn PDF document text
    • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/doxemakafor.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f0cde1d1034---43370593867.pdfIn PDF document text
    • https://sooryasales.com/uploads/file/57786844002.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f9bccfd15fc---dilonezofufazeve.pdfIn PDF document text
    • http://extintoresorigen.com/images/editor/44082371729.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3a18123ce---86536613617.pdfIn PDF document text
    • https://ehlibeytalimleri.com/resimler/files/96805039641.pdfIn PDF document text
    • https://shiokuda2.com/contents//files/429530963.pdfIn PDF document text
    • https://fultoys.com/userfiles/gigej.pdfIn PDF document text
    • https://psfund.org/public/uploads/files/cms_files/sedovese.pdfIn PDF document text
    • http://malagi.pl/user-files/fck/file/70416040579.pdfIn PDF document text
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097b05eab548---kujepol.pdfIn PDF document text
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/4080da4ec4fec2fa7068cc76189bca0e/tiburi.pdfIn PDF document text
    • https://panelshock.com/userfiles/file/82903308972.pdfIn PDF document text
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/ejpfgtfjqj1hpqp07rjsnpkuim/nukadu.pdfIn PDF document text
    • http://cymagun.com/userfiles/jugilejaxapadox.pdfIn PDF document text
    • http://www.sport-konyv.hu/userfiles/file/posokajerebabofoxokavatu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=les+reins+cours+pdfPDF link annotation
    • 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12743 21632 bytes
SHA-256: 883675e6aeca45d0a003cce486ef12a9b2100c31f26b915e96b8fcbfab5e91aa
font_01_sfnt_off00015e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E2D 10364 bytes
SHA-256: 3430654dc2fd00f813f1399e720eb1d55c0a54b9475ed2a98a67b32e72a4bb5b
font_02_sfnt_off000175aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x175AA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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