Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e6349383aec165…

MALICIOUS

PDF

68.1 KB Created: 2020-07-31 22:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d7f541ae5b68063d35f85a76302ef02 SHA-1: f84bd064aa3656c84cc31bafec29731dc5aa3189 SHA-256: 01e6349383aec16594d5e6dc32270421adedde676a88751d8ef935790416b220
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ffxiv+throne+gem', which is flagged as malicious. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware delivery.

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.ru/pify?keyword=ffxiv+throne+gem
    • http://files.downersgrovecpr.com/uploads/1/3/1/4/131410479/sajilusorisofixus.pdf
    • http://files.cayman-cove.com/uploads/1/3/0/7/130776162/tutijajuzabavujovil.pdf
    • http://files.iambornmade.net/uploads/1/3/0/8/130814226/2278337.pdf
    • http://files.sthlmtapas.se/uploads/1/3/0/9/130969424/70aa62.pdf
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/4058485650.pdf
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/74170455198.pdf
    • https://cdn.shopify.com/s/files/1/0437/3463/0554/files/xufeze.pdf
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/39242890307.pdf
    • https://cdn.shopify.com/s/files/1/0430/8634/8450/files/26613749798.pdf
    • https://cdn.shopify.com/s/files/1/0429/1854/3523/files/83468338433.pdf
    • https://cdn.shopify.com/s/files/1/0438/8388/8808/files/40818714427.pdf
    • https://cdn.shopify.com/s/files/1/0440/5588/8022/files/46413492035.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/77131141214.pdf
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/37626029561.pdf
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/30118500933.pdf
    • https://cdn.shopify.com/s/files/1/0432/2266/3325/files/galinomopaxonemalemepuz.pdf
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/bofigetolopo.pdf
    • https://cdn.shopify.com/s/files/1/0432/9281/9616/files/susezonojogewonejosoxati.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa60.bin
fda827e1bf6b3221c1d0196c484e09915ac80abc78a512ee1af8e0043f46fffa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA60 4184 bytes
font_01_sfnt_off0000b95a.bin
50d1f6609eef2f9a8de01b372ee72d0fe055f93f10a0f927888aa999fe93b98c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB95A 4844 bytes
font_02_sfnt_off0000c9bf.bin
fb5ff501ff1332061ab496f82ad2ba00ecf0dbc28a8948bac4e087cf5b2fffce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9BF 10392 bytes
font_03_sfnt_off0000ed95.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED95 16092 bytes

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