Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5242841ce41ae1…

MALICIOUS

PDF

65.4 KB Created: 2020-11-02 12:48:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1681edb8f343bd9b70564651c091537c SHA-1: b5dae75d4fbbf76e6b5dd59f5e2204697551877b SHA-256: 0d5242841ce41ae1bbe1436c58f2158eed3abb757290545f9614895b903c8e5f
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links, with one identified as a malicious redirector. The ML classifier also flagged the document as malicious. The presence of numerous external links suggests a link farm or SEO poisoning attempt, likely to drive traffic to malicious sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.
  • 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.
  • 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/123?keyword=mega+man+4+order In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367297/normal_5f8748e939a25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374203/normal_5f9087ef511b7.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://uploads.strikinglycdn.com/files/64fd00aa-de4f-4692-b409-dfb21f86466c/jomolajiru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7c0adab-619e-4ab7-a214-6440fa531e4f/senumejunudixikalekonime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6fc5bde-f4ef-442e-b434-9fa440fddf43/evo_x_manual_boost_controller.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/485323b8-7e82-4b35-bd89-255d7e4220d6/wezid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2795bd9b-d140-40ad-938a-b4473102e8f9/diradarutatimaliropixu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5753855a-67b9-4c68-b7b2-aa7849e85a94/design_of_reinforced_concrete_soluti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1698/6534/files/online_air_ticket_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/bringers_of_light.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/987e21b4-2e8a-4431-b8c6-d2258b60ace6/30147747193.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/adding_subtracting_fractions_with_unlike_denominators_worksheet.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9802 8644 bytes
SHA-256: cfd7856f1d6f76fad233d9948568e30c64cae87c72e4922c37ea61cd0e8e3933
font_01_sfnt_off0000b503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB503 4688 bytes
SHA-256: 87b601faffe15ae3bec237856d94e3fb34c6c359d82be06c21bde199aab13cfb
font_02_sfnt_off0000c4ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4CE 11096 bytes
SHA-256: 8c2e6a66a0b6f50c0073d812ae85b8bcccd8c0d73b0b95fc2c4c12c08dc53c4d
font_03_sfnt_off0000eab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB6 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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