Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ac0317c89b1c6df…

MALICIOUS

PDF

91.1 KB Created: 2021-07-31 23:00:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 200f806832c076f6c1c600a91f7d64f7 SHA-1: 224f56b30974ed9b3c02299ede111cdd79956665 SHA-256: 2ac0317c89b1c6dfefb461bd826e0f92e2669401dd8dd14226ceea0304c1bfa9
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains numerous links to external PDFs hosted on compromised websites, suggesting a phishing or malware distribution lure. The presence of a raw IP address in one of the URIs further increases suspicion. Although no scripts were explicitly extracted, the nature of the links and the overall detection suggest it's designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://sahamit.net/userfiles/file/fekilepezofebunadevesu.pdf In PDF document text
    • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/42ebf47b2491a0ccdfdbab3aec5a5afa/gosapus.pdfIn PDF document text
    • http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094aec9a2088---6810390357.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c1c3d33da---rusidudub.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/133012f7d10e1c01c32995287711be07/pojiri.pdfIn PDF document text
    • https://esvigo.com/upload/files/5029776350.pdfIn PDF document text
    • http://kolkandkolkdesign.com/site/data/ws/files/fetekozujeziso.pdfIn PDF document text
    • https://perfecthospitals.com/ckfinder/userfiles/files/bezagapefefifimedixiwi.pdfIn PDF document text
    • https://study-abroad-travel.com/ckfinder/userfiles/file/babuleziteguvujovidotifiz.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/733b480193a04242e94274c0572daa45/51530176219.pdfIn PDF document text
    • http://anapharmata.hu/ckfinder/core/connector/php/files/golak.pdfIn PDF document text
    • https://arte-salon.ru/upload_picture/84788667539.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0ba70f55c---rarizovategejoliv.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1608a158d77fd7---55161740058.pdfPDF link annotation
    • http://tasteofruraleurope.eu/upload/File/xunasubigelelujeto.pdfIn PDF document text
    • http://dental-forum.ru/userfiles/file/30800414990.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/gd1prul3tq9d5g4lv8iigm6na0/70171581199.pdfIn PDF document text
    • https://bawaniint.com/ckfinder/userfiles/files/59035634026.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7dc2bc229---22147025642.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16076931194214---risapaxesunit.pdfIn PDF document text
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a72da0a4929---rubamukotuvawunepenefevo.pdfIn PDF document text
    • http://strandedtattoo.com/file/88287460286.pdfIn PDF document text
    • https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608598fcd22de---zemapenuxazotimexo.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872faa1904f---47998012149.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=word+to+adobe+acrobat+pdf+converter+online+freePDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEE 17128 bytes
SHA-256: ecfe6555d0e7ddd9e3da0e522dd4bada73b5e7f201f4232b706277e05e21fded
font_01_sfnt_off000117a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117A8 16144 bytes
SHA-256: fcca37035df06e555c2991ff65faa0e8497ca6423bee408ebc46b3aef925b516
font_02_sfnt_off00012d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D28 10644 bytes
SHA-256: ca953f3c5902071ca3dd81902e20010446ed014ec0a028545b9d1e2db217a241
font_03_sfnt_off00014567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14567 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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