Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab34e2f4bd4f72c6…

MALICIOUS

PDF

38.5 KB Created: 2020-07-30 04:07:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f05e0f4bfe8c9072ac8eb4dc43a3f0 SHA-1: c81c1e6eb41e0aa0d74650d1b596c41663c134d6 SHA-256: ab34e2f4bd4f72c60ba2b57af620cd9e532e73b00728de0ea25c8c4ffdc88da4
120 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 'https://ttraff.com/pify?keyword=beauty+tips+in+tamil+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF also contains a large number of external PDF links, suggesting a link farm or SEO poisoning tactic to increase visibility and traffic to potentially malicious content.

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=beauty+tips+in+tamil+pdf
    • http://files.ryansbarattadesign.com/uploads/1/3/1/4/131453496/fadiwa-mibaziluzip.pdf
    • http://files.montreuxatfc.com/uploads/1/3/2/3/132302732/pamofolusu.pdf
    • http://files.cookiescakesva.com/uploads/1/3/2/7/132710694/e33d9.pdf
    • http://files.dianemariekramer.com/uploads/1/3/0/8/130813710/909597972214.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0103/files/77653762913.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0316/files/2746347665.pdf
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/68047137242.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/lalamudoxiluxububalak.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/laxuxoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/gapodezelerolirid.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7405/files/pidasadafotoduxopu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0913/8084/files/77910146039.pdf
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/76976214298.pdf
    • https://cdn.shopify.com/s/files/1/0434/5289/1298/files/bobiromepezelenaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7964/6878/files/ribagegisozoxexigojamu.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_off00005a38.bin
94ee06a1a388dffb0c8fda0a3ba7fb8d2cda3cf74b9fb041f845a603ec770999		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A38 5016 bytes
font_01_sfnt_off00006b2e.bin
cb49e004fc1525c15f2251a561fc23d31c3627033eebb14b7059c1cacc52783b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2E 9508 bytes

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