Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce2f18bfe59071cb…

MALICIOUS

PDF

93.3 KB Created: 2020-09-17 17:37:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3fd91aa42d558dc8d1bc1525534d2aa SHA-1: 10f4556d3ad50fe37a6c8c1c8036acbca3b72e00 SHA-256: ce2f18bfe59071cb146b5556bc65d2127c568b5295f224a2157b35c136c171e3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The embedded links, particularly the one to 'ttraff.club', are likely part of a phishing or malware distribution scheme. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=makeb+datacron+locations
    • http://segesosor.houstonbottledwaterdelivery.com/uploads/1/3/1/3/131383483/7672127.pdf
    • http://files.sgionet.com/uploads/1/3/0/8/130874413/zujojunejiguwimurob.pdf
    • http://files.ochsbass.com/uploads/1/3/2/7/132710575/9066850.pdf
    • http://files.mabsinc.com/uploads/1/3/0/8/130814245/c0922c46c8dc.pdf
    • http://files.lcalvioartwork.com/uploads/1/3/0/7/130739122/sugup_lijena_ganejad_rafegumuzakatu.pdf
    • https://efb39c64-fae8-4441-8507-c850a01942b2.filesusr.com/ugd/0bfb20_268f74d008284c4986be5dad74632106.pdf?index=true
    • https://7aafccb7-0ca1-441a-9988-587fd20efb97.filesusr.com/ugd/7c41c1_e83c37fe450a4cba9250bbff6bea4dc2.pdf?index=true
    • https://d856038f-4181-451c-924c-6126c1ab7b81.filesusr.com/ugd/90423f_2ea7a36471964c18ab9ecd2875aaca4f.pdf?index=true
    • https://78f1e30d-f8e9-4f07-90ce-3f19c802323a.filesusr.com/ugd/2c7c49_be1c6e01145c42dcb3ad2be65c5cad15.pdf?index=true
    • https://6067ece8-ad58-416e-937a-0b9293ba7ecc.filesusr.com/ugd/ab922d_db2e9cae451943e1a565c8af43a897b3.pdf?index=true
    • https://958ffcf5-e7b3-4840-a4e9-52da1199288a.filesusr.com/ugd/77941b_bc911a9b1cdd45bf9f53c505cdc875d4.pdf?index=true
    • https://e0626cb1-b14f-46a1-bfb6-203e38635215.filesusr.com/ugd/a4c1fa_6d66a43aea134ce6bed1f822baa5a82b.pdf?index=true
    • https://a0823658-e9b6-4455-a1d8-11ccd87fc2e9.filesusr.com/ugd/a2d007_667a7843259a48a8b6ae07664d9568ee.pdf?index=true
    • https://eabcd630-0ba2-4aa7-a332-59d9233d838f.filesusr.com/ugd/35e1ce_a4592495e7274e8f9334fd244c4b8640.pdf?index=true
    • https://4f0d3c7a-5ddb-477b-afb5-33e8e4aa264d.filesusr.com/ugd/fbccce_9f0f044ab3244e22b5e72cd694e532aa.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/

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010fe3.bin
8691485ab307659ea1b079e0d49935eee268025e7a08f32bde6ea2a6607074e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FE3 4932 bytes
font_01_sfnt_off000120a9.bin
b78f1d1cb53383415e660e4e54f1856e3dc310fcbf81eecea27047536632af3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x120A9 10520 bytes
font_02_sfnt_off000144b7.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x144B7 16092 bytes
font_03_sfnt_off0001597f.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1597F 4324 bytes

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