Malicious PDF — malware analysis report

Static analysis result for SHA-256 12e5b1288e7c57e1…

MALICIOUS

PDF

44.3 KB Created: 2020-11-03 22:07:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dca8b6d4f471b47ce8fd759622dc1f4a SHA-1: 5cc34bc2f25757626fe4a46a3fe83c39b0ba279b SHA-256: 12e5b1288e7c57e1714f79dc32eeb6c6f17d84e16dbea0f54dea8c5ee1b5104e
94 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.me'. The ML classifier also flagged the document as malicious with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.me/123?keyword=vault+pro+sourcegear
    • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/8547158.pdf
    • https://cdn-cms.f-static.net/uploads/4391013/normal_5f91606800977.pdf
    • https://dugegedop.weebly.com/uploads/1/3/4/3/134338267/8125359.pdf
    • https://cdn-cms.f-static.net/uploads/4366325/normal_5f870fafab94a.pdf
    • https://jixidaku.weebly.com/uploads/1/3/4/4/134495137/8941308.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mefadedosuw/jumajenanowarowafufiwo.pdf
    • https://s3.amazonaws.com/moduxanakuri/notatesufumokawa.pdf
    • https://uploads.strikinglycdn.com/files/65b1a145-7783-40ed-9a6c-b6b3b8b47809/22576510114.pdf
    • https://s3.amazonaws.com/jagux/lumitelevoxivisebogamo.pdf
    • https://s3.amazonaws.com/jamokaroxoj/cervical_intraepithelial_neoplasia.pdf
    • https://uploads.strikinglycdn.com/files/e36e08bd-7663-4a93-8f2b-9eb1d829fd03/sojog.pdf
    • https://uploads.strikinglycdn.com/files/26ff3dfe-f203-4199-8c67-6cd9ffb09a99/darkest_dungeon_wolves_at_the_door_map.pdf
    • https://s3.amazonaws.com/davawina/dinosaur_cake_pan_amazon.pdf
    • https://s3.amazonaws.com/henghuili-files2/11715110092.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c12.bin
3715226ea4ac5f9a78f33a7639e8fafda381b035fd99baeb4bd5bde2a2da5406		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C12 5064 bytes
font_01_sfnt_off00007d60.bin
35981355bd96402b91bc9d9226825780a9303ac2f65f4cdbbeef59e9b3cbab70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D60 11568 bytes

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