Malicious PDF — malware analysis report

Static analysis result for SHA-256 2edc9a3f074ef039…

MALICIOUS

PDF

50.2 KB Created: 2020-08-01 17:18:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a65e9aea49893f00088809b76cf569f5 SHA-1: 289350dae838d174cc26e88c4b77d355208a7fb4 SHA-256: 2edc9a3f074ef0390a31fcf0de9aa1ddf5cec1daa422bfcf7e16cadaa18c43d0
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics. The primary malicious URL identified is https://ttraff.ru/pify?keyword=torchlight+2+synergies+mod, which is used to redirect the user to further 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.ru/pify?keyword=torchlight+2+synergies+mod
    • http://files.janelincove.com/uploads/1/3/2/7/132710783/95cbc1.pdf
    • http://files.bcarrollconsulting.com/uploads/1/3/0/7/130740586/3238139.pdf
    • http://files.vernonlacey.com/uploads/1/3/0/9/130969403/nezes.pdf
    • http://files.auturbo.com/uploads/1/3/0/8/130814769/nanofokibol-xeriw-gevojef.pdf
    • http://files.desireestokkel-nl.net/uploads/1/3/1/4/131407369/sutunujupetigu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/79515504272.pdf
    • https://cdn.shopify.com/s/files/1/0434/0259/2410/files/17224582436.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/rodimoruriwafuxediwa.pdf
    • https://cdn.shopify.com/s/files/1/0429/1595/4847/files/xizidigubeketibesul.pdf
    • https://cdn.shopify.com/s/files/1/0436/4537/0528/files/95708533169.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/lapofanolenowetilaximu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/jidixolukuzodosozitozo.pdf
    • https://cdn.shopify.com/s/files/1/0438/2644/6496/files/tuxizakibuvefobemarugowe.pdf
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/zekokukago.pdf
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/wibesamuxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/14911499141.pdf
    • https://cdn.shopify.com/s/files/1/0431/7980/2782/files/73150740402.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/
    • https://cdn.shopify.com/s/files/1/0431/7092/2655

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000866c.bin
a5c97c70fefb6d8fd89d78015ab164a99191ebe7af2cb2117e0d224d40b6c152		 pdf-font-stream PDF embedded font (sfnt) at offset 0x866C 5328 bytes
font_01_sfnt_off0000986e.bin
ebc450350252f06cca58e5ad327b816ba76f9b01ea2e7bb01019623ce9c21bee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x986E 10360 bytes

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