Malicious PDF — malware analysis report

Static analysis result for SHA-256 18669d7f79cf726f…

MALICIOUS

PDF

41.5 KB Created: 2020-10-07 11:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: edd57e2bb2042e80d0d283a248b7c2b9 SHA-1: d5a56a97d54805da9f6ac73512ce380f4ef031f1 SHA-256: 18669d7f79cf726f703c3f28f43a42fc0b92743e3278e1b0260b7e050ddb026b
114 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure for a wiring diagram, and the SE_CALLBACK_LURE heuristic suggests a phishing or scam context. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ttraff.club/pify?keyword=pride+legend+mobility+scooter+wiring+diagram In PDF document text
    • https://site-1036851.mozfiles.com/files/1036851/totabukimix.pdfIn PDF document text
    • https://site-1041395.mozfiles.com/files/1041395/43580276030.pdfIn PDF document text
    • https://site-1042988.mozfiles.com/files/1042988/lulutelinojirelosom.pdfIn PDF document text
    • https://site-1037142.mozfiles.com/files/1037142/37857114177.pdfIn PDF document text
    • https://site-1039398.mozfiles.com/files/1039398/muwileza.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://cdn.shopify.com/s/files/1/0434/7179/8424/files/abominable_snowman_rudolph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/0670/0963/files/awesome_tanks_2_unblocked_games_76.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2480/4761/files/90331147834.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caadae5c-6409-4ec7-b19e-8cf339ba9070/gegiginesibotobileb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56e06a31-eb1f-4884-a143-f84a3db6fa03/bubotikake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30fc1e8e-1934-45cf-be3c-b1859ed7f237/99237027214.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/345e9af6-9ad5-42f6-8092-b63fd7f4da10/65750341297.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8904ad9-a75f-4d9b-b2b5-fc99d7e4aad9/kuzopugiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/2882/8319/files/7_up_game_nes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9482/9976/files/46411530384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4477/2759/files/bloodborne_pthumeru_chalice_layer_4.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C23 5380 bytes
SHA-256: 0c83de0ced2fe86ec2be5bbe91d200338df9b454125723c8535c8e0df6dbb1d3
font_01_sfnt_off00005e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E54 14176 bytes
SHA-256: 5a0007a7532d3cd57608a52afdc161e4d2abf7d3b55c57c1ec0c1d7fd1ae79a6
font_02_sfnt_off00008aae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAE 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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