Malicious PDF — malware analysis report

Static analysis result for SHA-256 d64bf08cd36c6099…

MALICIOUS

PDF

60.0 KB Created: 2020-09-17 15:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4da28edff1b65244b68abd1881c517a2 SHA-1: d457cc0d7704a4cfc12946b169ea5bdf1aad7085 SHA-256: d64bf08cd36c6099ccc7bde172011eb3cc99e5f7302f0358aea4d8e829edce03
128 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, specifically pointing to 'https://ttraff.me/wix?keyword=google+photos+duplicates+iphone+ipad'. Another critical heuristic indicates a PDF link farm, with 'http://files.meady.com/uploads/1/3/2/6/132695465/2089613.pdf' being the first URL in this farm. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic suggests a lure to trick users into clicking these links. No scripts were extracted, but the combination of redirector and link farm heuristics strongly suggests a phishing or scam attempt.

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.me/wix?keyword=google+photos+duplicates+iphone+ipad
    • http://files.meady.com/uploads/1/3/2/6/132695465/2089613.pdf
    • http://kowogomop.myforgenetwork.com/uploads/1/3/0/8/130814328/zunopikopa.pdf
    • http://files.foxstudiocycling.com/uploads/1/3/1/3/131383467/lowamomuri_gotuwutigusop.pdf
    • http://files.i40challenge.com/uploads/1/3/0/9/130969470/wopelemawaxe-jajozexem-salipeguta.pdf
    • http://files.meady.com/uploads/1/3/2/6/1326954
    • https://119512ec-872c-4a4e-9d73-a5eae938cc4c.filesusr.com/ugd/3d0627_df79b05f8be84e2ba1fc6144f8f54c88.pdf?index=true
    • https://c24b5acb-430a-468f-9897-f5377f275621.filesusr.com/ugd/1c8c1e_a983f098b04f4f6884672651e771256e.pdf?index=true
    • https://8a0f8d7a-73e4-4914-8ac7-0ef4e1484dff.filesusr.com/ugd/7d1dc9_a7c4f96680a6420191c763f498a60463.pdf?index=true
    • https://6b1a985f-042f-454f-9caa-2cdd90456828.filesusr.com/ugd/b4609a_7ee16bda815c4e8d986db136b4410d2e.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.pdf
    • https://cdn.shopify.com/s/files/1/0437/7755/6629/files/30173018976.pdf
    • https://cdn.shopify.com/s/files/1/0431/4660/8794/files/beetlejuice_cartoon_episodes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/vegekikoxoj.pdf
    • https://4514f2a6-7594-4352-9420-bee71b2d51cf.filesusr.com/ugd/7c3584_7db3938d4f54420faa434837656d8122.pdf?index=true
    • https://474f99a3-e8b9-485f-b647-c9d1d83c5ea8.filesusr.com/ugd/1e8759_9038cc418b0d41b38bed77861148a5af.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a009.bin
bb1ef5f491362c0ab747c4037eb7f24117d2d06e569ae41c4b8e0a0cbec11895		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA009 5152 bytes
font_01_sfnt_off0000b195.bin
fd4f8e50f6743233208a5f6bb4a6f890f28be88fffe939e65b7699e3e336ceab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB195 10236 bytes
font_02_sfnt_off0000d49e.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD49E 4324 bytes

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