Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fe89ec948a4addd…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 08:09:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 39dfe7c50c1f8902007c4b9bfde79c27 SHA-1: d841bccb24f56317a914a7a889449b520f2d0e1c SHA-256: 3fe89ec948a4addd70e7d2e3193904d31b142a2f928e82d913fd82b34529e1b1
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of a "download button" heuristic further suggests a lure to click on these links. The primary malicious link identified is https://ttraff.ru/pify?keyword=newmar+mountain+aire+owners+manual, which likely leads to a phishing page or malware download.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=newmar+mountain+aire+owners+manual
    • http://files.dottiesflourshop.com/uploads/1/3/1/4/131453267/67bf3ac45d32a66.pdf
    • http://files.sayrevillesquad.org/uploads/1/3/1/1/131164273/fogamolopefex.pdf
    • http://files.olliedudekplaysbass.com/uploads/1/3/2/8/132814303/3653073.pdf
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/62907367691.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/70712436006.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/kejedatazebatejizazonizu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3776/0408/files/wedimidetimiravab.pdf
    • https://cdn.shopify.com/s/files/1/0433/7221/6483/files/19964206911.pdf
    • https://cdn.shopify.com/s/files/1/0434/2431/7596/files/natutopogofux.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/73943691395.pdf
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/kijuxavelovuxotos.pdf
    • https://cdn.shopify.com/s/files/1/0431/1226/7937/files/76465754538.pdf
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/60847022713.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/kuxafetamudugikapoporiwal.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_off000067d2.bin
d5df0c326b0a82df9e2f25c2c65002eb58600e2d0442072db41db27e63e2129f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67D2 4892 bytes
font_01_sfnt_off0000786d.bin
681c854b5f9f8efc995c31b082f7db809d912251e2c6308be2a4dcb3357d2d5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786D 10828 bytes

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