Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c46c96d60c91ef…

MALICIOUS

PDF

42.2 KB Created: 2020-08-16 12:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a21b72cbe79e437425f03fe92b4b4bad SHA-1: 7e21264864a7006b5ef07cbdb9266bcaa3b0467b SHA-256: 29c46c96d60c91ef20d27d0e1e011e69fe11c874fdd371e2a444011af293ca3d
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. Additionally, it exhibits a PDF link farm behavior, embedding numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and several other PDF links, suggesting a lure to external content. The primary intent appears to be redirecting the user to malicious infrastructure via the ttraff.com URL.

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.com/pify?keyword=bow+wow+ciara+like+you
    • http://bimogabo.acresofopportunityranch.com/uploads/1/3/1/6/131606289/1831726.pdf
    • http://rifaruzop.doodlepugs.com/uploads/1/3/0/7/130740019/vuribovugom_kolozevunafojaw_lasowikilugo_fugam.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/gta_5_save.pdf
    • https://cdn.shopify.com/s/files/1/0431/7439/6058/files/3711553223.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdf
    • https://cdn.shopify.com/s/files/1/0450/7897/0533/files/deficiencia_de_vitamina_b12_y_acido_folico.pdf
    • https://cdn.shopify.com/s/files/1/0433/7165/9414/files/zoboruruxisexevepimigol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bapumonotirugapagemuzigin.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/50903865805.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdf
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/epic_conor_kostick.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/pirubazitajonedu.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_off00005d5a.bin
648064e5d2b4241b1cdcdfe00865cb1f4d949fdbfc62e3201aa3ecc0117ced79
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5A 4920 bytes
font_01_sfnt_off00006e38.bin
d0ecb21db676fa1fa5184e65ce1c70b863dd7d646230ce9fb3f440e402cde159
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E38 14768 bytes