Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa45d5389b0346de…

MALICIOUS

PDF

67.5 KB Created: 2021-09-27 00:31:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 68da0257680691bae318bfc4e5e502fc SHA-1: 2f08e950dca0dc68ab975c038a588499e758007e SHA-256: fa45d5389b0346de59aa2f19cece40852fc1f9d5ffd572b36ef1ba1167ef2b27
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its small size and image-only content, typical of a screenshot designed to hide a clickable link. The heuristic PDF_IMAGE_LURE and ClamAV detection strongly indicate malicious intent. The embedded URLs, such as 'https://garglob.ru/uplcv?utm_term=earn+to+die+2+hacked+version', likely serve as the initial point of contact for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://garglob.ru/uplcv?utm_term=earn+to+die+2+hacked+version
    • http://jinanxintiandi.com/userfiles/files/wamufafuminijilawimud.pdf
    • http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613721150ff69---97377455403.pdf
    • http://konditsionery-zheleznodorozhnyi.ru/upload_picture/file/54306581348.pdf
    • https://igraonica.me/userfiles/file/pipuluginopovasopakikul.pdf
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16143f465df049---disigol.pdf
    • http://dansensvenner.dk/imagesfile///44284137264.pdf
    • https://sibservis.com/ckfinder/userfiles/files/63051516462.pdf
    • https://wisestudentz.com/userfiles/file/jeneroxiwuligi.pdf
    • http://nationalherbo.com/userfiles/file/biguwiporajewunigutor.pdf
    • http://eastindiaspray.com/suvra/eastindia_spray/files/miwibabawigudorasarotunem.pdf
    • https://memo-log.com/userfiles/file/25088796533.pdf
    • http://zimmerei-possert.at/tezuwapugaziziluvu.pdf
    • http://taaltoetsvo.nl/userfiles/file/5799185957.pdf
    • https://sonntag-immobilien.lu/userfiles/files/33922682182.pdf
    • http://waxiangyuan.com/upload_fck/file/2021-9-25/20210925120741537441.pdf
    • http://nuovartea.eu/userfiles/files/dakoriliwazoviboz.pdf
    • http://machinesupplier.cn/data/product/file/2021915_152034_252.pdf
    • https://nothingbutsafetyglasses.com/userfiles/file/87790395976.pdf
    • https://ratsimae.ee/media/contents/file/pejotavololuxodowelowoxud.pdf
    • http://whygzy.com/Media/Uploads/files/nesanenudi.pdf
    • https://bancodevida.com/bancodevida/admin/images/image/file/51338181300.pdf
    • http://avon-bratislava.sk/files/files/93827797476.pdf
    • http://giadinhmedia.com/uploads/files/34745065660.pdf
    • 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_off0000ad70.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD70 16792 bytes
font_01_sfnt_off0000c582.bin
5d8cd5c77a22bbff40de2ae48b2fb48bc9dbe7ec0abf66a32aca1862adb211fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC582 13920 bytes
font_02_sfnt_off0000e7f5.bin
e54e81c2a013d9ad3cf52e10d23b6c77406a8464658322abe46b7c08d52545f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F5 10680 bytes

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