Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee147b251bb73d3…

MALICIOUS

PDF

43.9 KB Created: 2020-09-17 03:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab61b9d7cba835550062911877b4ebdc SHA-1: f5c5438faad033e21b04b1aefdac75312141fc15 SHA-256: 3ee147b251bb73d39bd4caac005fe5fd93fbf92b71e6a0455df127b2b9a7f1a2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/wix?keyword=can+cats+have+sunflower+seeds', which is a clear indicator of a phishing or redirection attempt. The presence of numerous PDF links suggests a link farm designed to manipulate search engine results or distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=can+cats+have+sunflower+seeds
    • http://posolun.stasstas.com/uploads/1/3/1/0/131070152/fozixo_zopasogono_wubaw_dejufe.pdf
    • http://files.pureblissbodyconfections.com/uploads/1/3/1/1/131164456/c6aa84833.pdf
    • http://xerirom.walknowtracks.co.uk/uploads/1/3/1/4/131452942/zekodemiwi.pdf
    • http://nomuw.seanpenchoff.com/uploads/1/3/1/6/131606228/ebcc72d91.pdf
    • http://guxafo.boothfolio.com/uploads/1/3/1/6/131636755/6061326.pdf
    • http://files.cocoally.com/uploads/1/3/2/6/132680962/tiradari_riliramivuv_fodukewadumozav_naritilili.pdf
    • http://mijoz.savannahconcretecontractors.com/uploads/1/3/0/7/130776485/rizivul_vegop_jixujutolaz_repetuvifew.pdf
    • http://files.projectyouthaffirm.org/uploads/1/3/0/8/130874691/fe2f6635.pdf
    • http://files.pureblissbodyconfections.com/uploads/1/3/1/1/131164456/c6aa8
    • https://4013eede-9d32-4eae-9cc0-8f3a09a01cc3.filesusr.com/ugd/03ae60_7e795da5e73a432596f463233478fbd6.pdf?index=true
    • https://a263b059-e3fb-4a1f-a55a-f25a671deba6.filesusr.com/ugd/5af86b_fd0777d4816b46dba80d5abc2c214161.pdf?index=true
    • https://1f25de82-3657-4024-b704-4ee883b56852.filesusr.com/ugd/9d66c7_eb87b7c8f7d14819afdc54aebb39b800.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/9617/8849/files/siwavifinajo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2883/9581/files/fidaxutub.pdf
    • https://cdn.shopify.com/s/files/1/0430/7389/6602/files/35568051500.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/16995213327.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d65.bin
52bee9919254bad325b7128f4e9918a396024e2b067d71740323eac809e27e37
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D65 5164 bytes
font_01_sfnt_off00007f03.bin
1159ac7afd9cb0104fa5b7a557ba0d3e8b6a847a06444276d68b5456a923e891
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F03 10352 bytes