Malicious PDF — malware analysis report

Static analysis result for SHA-256 64be714087004513…

MALICIOUS

PDF

46.5 KB Created: 2020-09-17 21:39:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 553dcf45da46393e27f7d161d32139a9 SHA-1: 407da1a11e22499b4f0275be88e2b073a97f3a77 SHA-256: 64be714087004513c6c9e0b7572d6323c6b7a23691d14db66e20240df06ddc12
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for linking to known malicious redirector infrastructure, specifically pointing to 'ttraff.link'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to trick users into clicking it. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic, likely to obscure the malicious redirector.

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.link/wix?keyword=torrey+pines+high+school+women%2527s+soccer
    • http://files.latvianelement.com/uploads/1/3/0/8/130813985/9715066.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://3e6f8368-d62c-434c-98b7-4149f8159c3e.filesusr.com/ugd/7c41c1_c118d3c0d6f14a7ab34ce58c43e93c00.pdf?index=true
    • https://23aa119a-8c85-4843-a3b4-cb7f7c28ef59.filesusr.com/ugd/286fb8_07f2065172af4e18a9ac24a2852cff35.pdf?index=true
    • https://773ef88d-1138-4a1e-b619-871d5fb61b3b.filesusr.com/ugd/8a9bcc_e13c2caf5fe5457c93b5975c61aeae03.pdf?index=true
    • https://a92d0a00-1447-45d9-be5b-0df408f2fccb.filesusr.com/ugd/f65518_d49a44a18c7e4b41aed13fd34dd3325d.pdf?index=true
    • https://78d92ecb-4b7b-44f3-a748-14fed09b94c5.filesusr.com/ugd/edb4a7_a7e1f3766fce4052b8e20e42b37d5e3a.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0438/5928/0022/files/aldon_morris_the_origins_of_the_civil_rights_movement.pdf
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/saxujivixunamurugir.pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/97756566364.pdf
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/zifumusubelinodesed.pdf
    • https://cdn.shopify.com/s/files/1/0430/9506/4733/files/ditimifuxuxidowu.pdf
    • https://652d7e89-9602-46ef-b14b-0e937c103bfd.filesusr.com/ugd/ebcc4b_7059c4ed6d1a45e59818d58ed787706f.pdf?index=true
    • https://5381a28b-b932-4f9b-a78c-eee5c813f83c.filesusr.com/ugd/b8c837_7490f700b93642768966f39d1a8a7ee6.pdf?index=true
    • https://377ad32f-a623-456f-8eb9-76cc1ba379df.filesusr.com/ugd/0cd019_adf4cf8fb04e4289a75d96b618124ff3.pdf?index=true
    • https://ea1cbd0b-9171-4d0a-becc-9562e8b8f46d.filesusr.com/ugd/c722c2_abc5d0cad903493ba533852efbeaf29c.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_off00006b2d.bin
2b80ebe592aed0ead82c5369d5402a0815d0d918fdfcda946e9af2b221f35471		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2D 5024 bytes
font_01_sfnt_off00007c22.bin
d71af77f45e0004237915056201de218253ce326e64fe15d8c633d99fbf42ceb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C22 10128 bytes
font_02_sfnt_off00009eda.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EDA 4324 bytes

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