Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9399a2ea9151fa0…

MALICIOUS

PDF

34.2 KB Created: 2020-08-03 05:12:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac7bda1fe781d22d74324b5b076aaf24 SHA-1: ed9f2b4fe8d21118aa7a1518e401d29f4ed14bb9 SHA-256: b9399a2ea9151fa0f72f816901dc8f4740fd11d1c995b6d7058786dbe9009f46
140 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at ttraff.com. The document body, though obfuscated, contains references to 'Pokemon gold online' and includes the malicious URL, suggesting a lure to a phishing or scam site. The presence of numerous PDF links hosted on Shopify, while some are benign, indicates a link farm strategy. The heuristic 'SE_CALLBACK_LURE' further supports a phishing or scam context.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=pokemon+gold+online
    • http://files.sirkil.com/uploads/1/3/1/4/131455621/8463579.pdf
    • http://files.elizabethrona.com/uploads/1/3/0/7/130739918/dosilupafulevajidew.pdf
    • http://files.southdownmethodistpreschool.com/uploads/1/3/0/8/130874102/aeef88f6bd87e.pdf
    • http://files.rebeccasacksmezzo.com/uploads/1/3/0/9/130969717/9893055.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/30778469360.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6680/files/rulutelilev.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/29233060687.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98012128422.pdf
    • https://cdn.shopify.com/s/files/1/0433/6150/1334/files/73007577381.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/12839184905.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/savowogofoxifonikili.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/kimoze.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/xemufepamuvebupu.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_off0000479d.bin
3d9915d67a854c191763e98593dfc57af8c573474fa378dbedc52b19b0c97f25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x479D 4724 bytes
font_01_sfnt_off000057aa.bin
d8884f69ec6006c9017d47c84238d0a0c7239205ad475142c8f359824911132e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57AA 10348 bytes

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