Malicious PDF — malware analysis report

Static analysis result for SHA-256 53f76c4e93c2476d…

MALICIOUS

PDF

191.6 KB Created: 2020-08-21 06:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30b3162867b4f0d0ed5abf38daaa27f9 SHA-1: ccaa7a9d59459e7eda872f2ce5921c2ca47c77a7 SHA-256: 53f76c4e93c2476d3d8217781013df45da19212cd3b500c2b5c755c3faea31dd
70 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 'ttraff.ru'. The document body also contains this URL, suggesting it's the primary lure. The presence of a 'download button' heuristic further supports a malicious workflow. No scripts were extracted, limiting the analysis of the payload.

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.
  • 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=type+your+answer+here+tradu%25C3%25A7%25C3%25A3o
    • http://files.canmorecounselling.com/uploads/1/3/1/4/131408537/fofomuguwur.pdf
    • http://files.isimonterey.org/uploads/1/3/1/4/131454355/babada-napipisobesod.pdf
    • http://files.paulsonproductions.com/uploads/1/3/0/7/130740128/6574175.pdf
    • http://gasibakut.georgioreed.com/uploads/1/3/0/7/130738732/2183184.pdf
    • http://files.stonetreematerials.com/uploads/1/3/1/1/131163957/35aaee013.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/ampere_s_law.pdf
    • https://cdn.shopify.com/s/files/1/0435/3225/5392/files/36889462208.pdf
    • https://cdn.shopify.com/s/files/1/0432/0310/0836/files/64269983798.pdf
    • https://cdn.shopify.com/s/files/1/0434/4312/6438/files/microsoft_business_intelligence_tools_for_excel_analysts_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0471/files/android_customtabs_example.pdf
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/totalamufitabojudumado.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/pafaxugineg.pdf
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/95882625178.pdf
    • https://cdn.shopify.com/s/files/1/0434/7107/7542/files/retududogevefisiviteve.pdf
    • https://cdn.shopify.com/s/files/1/0429/2195/1391/files/23845533739.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/victor_s_piano_solo_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/92114098696.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/ribisekifolofilomi.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off0002bb42.bin
8374b52a9543dc931c060049fb7ff3ae02894c72d7a19c983e6b7b436af15fd5
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2BB42 28996 bytes
font_00_sfnt_off00022137.bin
627844cf1a719e1c45ffda2df0ed47c4757d0fbad0a956ea0e915b2a6332c3bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x22137 13848 bytes
font_01_sfnt_off00024e08.bin
65854eda4c2c93920e8ee92ae4deb73b3e7bfd3a996f7c4f288eca6fb38f28e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x24E08 5660 bytes
font_02_sfnt_off000260b5.bin
36383b234ee7575313072db338143f10b8ecb8aea188710a7f3d2ffe21f5ec83
pdf-font-stream PDF embedded font (sfnt) at offset 0x260B5 6892 bytes
font_03_sfnt_off00027316.bin
252bad05a8fa88c4e3b93932994f01a5b7c44e47059ddb9902ea6d0ba56ff4d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x27316 24676 bytes