Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1402e6b0f7fe97d…

MALICIOUS

PDF

78.0 KB Created: 2020-12-22 05:49:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 02fc68aab7e9f5bc5fdb4b9e28ae9cfb SHA-1: 89aacba2827f4a8005ef512f5d5d0eb06076c853 SHA-256: d1402e6b0f7fe97d61be8c7b7c1200cf0f5f0977b9843e5aa02c71b095918e44
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojanized nature. The heuristic PDF_SEO_LINK_FARM suggests the document is designed to host a large number of external links, with one prominent example being a link to 'rabunuzo.weebly.com'. The embedded URL 'traffking.ru' further supports the phishing or malicious redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffking.ru/123?utm_term=angels+seating+chart PDF link annotation
    • https://rabunuzo.weebly.com/uploads/1/3/4/5/134502988/22b89591980.pdfIn PDF document text
    • https://wimugedi.weebly.com/uploads/1/3/4/7/134725841/jevadu_limabamovakese.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/newuwaka_tepotogu_jinuxadajijepix.pdfIn PDF document text
    • https://jinobodusere.weebly.com/uploads/1/3/4/7/134722577/7482420.pdfIn PDF document text
    • https://jadufebifov.weebly.com/uploads/1/3/4/6/134627690/lamijokexewomet_wunupodi_zolaguzasafu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fdc9f93f65a9a5fd492d713/t/5fdd076f964bd21b1a59b710/1608320881955/vakaliruraporavu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7aeac02915d4a16fa01ec/t/5fcff1184982eb50a5b30f43/1607463192880/bandpass_filter_matlab_2017a.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdfda9307af9e0e16040623/t/5fe0e5ae59b6ea4f24085f7d/1608574384207/les_cercles_de_la_forme_lecourbe_avis.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3426faffbf90a66f9ae2f/t/5fcdc126cded405bb8f83e0f/1607319847233/laws_of_the_game_soccer_quiz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5d5c488c99b6d37c929de/t/5fcc0f28d235d37878b32c9d/1607208744849/little_fox_chinese_colors_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acef6ea0-d7c5-451d-98eb-0b999390138f/sadopuguwo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdfd92f5b7bc96605610b65/t/5fe0ef5886144b2be17961ba/1608576860040/curse_of_oak_island_season_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5b2f4f98375720d79a7c/1606376242832/zegitedesurakozopevusas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84ba4d9c-e124-403d-bc37-eb67dfdc436d/37941008251.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe09359ee0f32b871ac5ac/1606289718448/stair_climbing_and_power_physics_lab.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB42 4728 bytes
SHA-256: 6420feaf29ee5436f5948c924336cd98b1c07d2e2bcd5902b67c32649855ab59
font_01_sfnt_off0000db33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB33 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000e3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C0 10412 bytes
SHA-256: 139a6c93c7b14ecfb7183c1710aac4dd2d817e25936bdd4d2571d29c6808813e
font_03_sfnt_off0001078c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1078C 16092 bytes
SHA-256: e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848
font_04_sfnt_off00011c54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C54 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333