Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f28d205120146b…

MALICIOUS

PDF

44.1 KB Created: 2020-09-19 04:03:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9d5dfeef918cedfa3e2c35048369d5f SHA-1: 9ed85eee66fbb3f952228f7a6f2d8f13d6b0a5b4 SHA-256: f3f28d205120146b366c4167a38c226c65ffe5acaa594320ea03cd90a6b0fb64
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 embedded document body contains a URL that points to a known malicious redirector, 'ttraff.me', which is designed to lure users to potentially harmful content. The presence of numerous external PDF links further supports the attack pattern of a link farm, likely intended to obscure the final malicious destination.

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.me/wix?keyword=jacksepticeye+sam+you
    • http://pafolog.connorholland.com/uploads/1/3/0/8/130813420/wibixuwuvudag_sepozoni_nitunale_xuwodedel.pdf
    • http://files.tinforestfarm.com/uploads/1/3/1/6/131607063/salevozezigewod.pdf
    • http://files.dst-transport.com/uploads/1/3/0/8/130874162/malijavigafop.pdf
    • https://9bd27190-c78c-4691-96d2-d88f6256d7bc.filesusr.com/ugd/7be1cd_793139d0ceed43a3b5ac349b9883a4e6.pdf?index=true
    • https://411f40ca-f902-4a7b-b07e-7098f5b2c7ef.filesusr.com/ugd/2d1648_65f397d176d24469b67aa54100131d95.pdf?index=true
    • https://a890ad2e-9b24-402e-8235-0daeea7fec0f.filesusr.com/ugd/696117_1ed0770042ec42849505141ebac7bbfb.pdf?index=true
    • https://e508c43f-a9bc-42d2-9600-6eaa0757045b.filesusr.com/ugd/e2a635_b3208d421ea3453d801afea7c1972988.pdf?index=true
    • https://d8db8e3c-2b03-49bc-ae4c-7e663f1812f3.filesusr.com/ugd/d94ae5_72e0aaec316e43378dace85073973ca3.pdf?index=true
    • https://36d276f9-b227-42eb-8f7b-318fcdeee17a.filesusr.com/ugd/956c05_d04ebbf999de4358bdd5fcb3b8c37bce.pdf?index=true
    • https://9fc4efa3-8e46-43d9-9b2a-9fe479913405.filesusr.com/ugd/afbef4_62a1b189bb4245158f6c0740e6ac9c5f.pdf?index=true
    • https://4b4fa61c-c07c-4705-85ab-7cd17c8b70f6.filesusr.com/ugd/ef253e_95fb3ed028a94444b7cb1709d470d047.pdf?index=true
    • https://0697488c-2d86-4af2-8081-4579b35c0dfa.filesusr.com/ugd/3e87bf_2202bd81433a46e2a1cb808baaa9f6c8.pdf?index=true
    • https://2c2393fd-6a51-4820-acde-24378ab8cbbc.filesusr.com/ugd/105a8c_2d0eb365327f4bea8139be01d5c236be.pdf?index=true
    • https://e8db7d9d-c67c-4f69-a81b-9c2556850826.filesusr.com/ugd/4ca7f5_fbd7c70957564678aa769ac0846e8019.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006047.bin
28c868b855cbe31bcaf603ef04560c4c1d58a645af26391bbeafb6d4506db745		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6047 4880 bytes
font_01_sfnt_off000070f8.bin
10ab758181421fc250229c0aef24c573dfde3c056e67efb3b72b9384e566a7e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70F8 10708 bytes
font_02_sfnt_off000095a3.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95A3 4324 bytes

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