Malicious PDF — malware analysis report

Static analysis result for SHA-256 1867027eb24d08cb…

MALICIOUS

PDF

45.2 KB Created: 2020-09-18 01:03:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2265741f62f3562c46d3e05bc6f73ef2 SHA-1: 75fa0672cb209a848df438729f9a5929d9285bb2 SHA-256: 1867027eb24d08cb11192468ea59c6738d19bf87db6945817b131da4d5852ad9
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.club/wix?keyword=orono+splash+page+examples, which is known to lead to malicious infrastructure. The document's content, though obfuscated, suggests a lure related to "Orono splash page examples", likely intended to trick users into clicking the malicious links. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/wix?keyword=orono+splash+page+examples
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://0e7bc26b-1130-4f58-a96d-ee7504e5e604.filesusr.com/ugd/2e16aa_66204bcdcc66478a915033e218eae875.pdf?index=true
    • https://7ad24c8b-1110-4d69-95b3-43584aede470.filesusr.com/ugd/4c7633_1f475fd0a3c040388fbad9ba14cab710.pdf?index=true
    • https://f064333f-9beb-415c-bf5a-371d7a73847b.filesusr.com/ugd/03a576_ddad73b0520540138aaa896aadf744a8.pdf?index=true
    • https://8fb20c58-07c3-4303-8b1f-89a9a0398639.filesusr.com/ugd/a01749_4bb036f925bd4d6cb12044573b19b22e.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/3297849472.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/36143305228.pdf
    • https://cdn.shopify.com/s/files/1/0430/6354/1917/files/how_to_convert_to_word_doc_for_free.pdf
    • https://cdn.shopify.com/s/files/1/0441/0019/0360/files/kepala_bergetar_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/demalujafudixokevude.pdf
    • https://cdn.shopify.com/s/files/1/0437/6412/1752/files/23938360100.pdf
    • https://169d965b-b2cf-46e0-afde-fe13125c24bf.filesusr.com/ugd/f2c1dc_ee3f34adb8cc48daaa2dd1aa6e9d553d.pdf?index=true
    • https://278a4c1f-e91d-48b2-b6ac-556a1667b503.filesusr.com/ugd/d61b30_d21b84bec0e64815b301d11053d4ebf3.pdf?index=true
    • https://a47cab11-b40a-4340-adc8-9f85f58cd82b.filesusr.com/ugd/fac845_2ab4fcf88aa74b409e9214fcea174395.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066ec.bin
0f43131b2c8e56b4256984cc985369f1eaa82c357e5c8613d6c1e205402c598c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66EC 4988 bytes
font_01_sfnt_off000077aa.bin
dd7204c54046133c369a24d7a9fa177ebf1681f55510f02a606e1dfccf5d09ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77AA 10076 bytes
font_02_sfnt_off00009a39.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A39 4324 bytes

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