Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0cf247e0fab6f3…

MALICIOUS

PDF

84.4 KB Created: 2021-06-25 20:56:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f7b9211ee5ff226a3b3343ae5ec7de64 SHA-1: d2dc9eba00eca34ca0569309de3ab9b97ad53bd4 SHA-256: 3d0cf247e0fab6f3a826b9c08c702f14d74744e61af0c18433ea04d08d850cb8
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests an attempt to redirect the user to external, potentially malicious sites. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/e45df5cbb8e556b6182f1825a65e5776/12764937350.pdf
    • https://zoomkish.com/basefile/zoomkishcom/files/91348416964.pdf
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/js1jm6g716o43p230pa2tenap8/zopujogetuforotetekajaj.pdf
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/11ea5538d1f040762d75178341804ca3/pitulapux.pdf
    • http://solamsys.com/userData/board/file/pazip.pdf
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cd29dae56f4---60246435713.pdf
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607edf7786d53---1628065540.pdf
    • https://ises.ca/phpsites/vertical_living/uploads/file/70330274277.pdf
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/m10hfjn8ogr2kjo4c6cjtg5sfl/finowogafebefinomamanaz.pdf
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/29040b21207d45d2e4e94b5985366999/rajopapejidefalefi.pdf
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160765f3b18e02---mikokorinenej.pdf
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/jldpp3plg79kho6brbev5si2pd/58579404530.pdf
    • http://ezibra.pl/upload//file/90831742256.pdf
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/btc71co1op0vn96c5q9ch4apsi/21420461583.pdf
    • https://itacademyindia.com/ckfinder/userfiles/files/zapimidupumi.pdf
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0334e7fa5---fonexabupokuxun.pdf
    • http://alexlunacoach.com/img/editor/file/gemowoponapajewoge.pdf
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160be505666f51---17370647591.pdf
    • http://sahamit.net/userfiles/file/vajizejepija.pdf
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608738f1850f1---3010479841.pdf
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ccf411df34---poxutakomewuzizobu.pdf
    • http://alkanboya.com/files/file///tizil.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=properties+of+acids+and+bases+chart
    • 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_off0000e876.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE876 16792 bytes
font_01_sfnt_off0001008d.bin
f50cb3859ada83afd0a200bcabc2e8fbdabbbe33c0d3140499029eb6eb74da83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1008D 10812 bytes
font_02_sfnt_off0001192c.bin
8c28db5d593a55082b71901ad793e099b1e7caf7433fc5a611143ade91b7513c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1192C 16592 bytes

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