Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d0e14be67771ac…

MALICIOUS

PDF

45.7 KB Created: 2020-08-26 11:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3878d5f0204f0adb82d5c0135db7e503 SHA-1: e3ab76dec5ff385d28a455aab2f8b9b6b29cb8e9 SHA-256: b5d0e14be67771ac138f28c0a11c889fbd91bf9f7d76a65485c779e4b85172b0
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Pokemon moon gba download' and a call-to-action phrase, indicating a lure for downloading potentially malicious content. The presence of a PDF link farm further supports a malicious distribution strategy.

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.com/pify?keyword=pokemon+moon+gba+download
    • http://vedejiw.bioactivtherapy.com/uploads/1/3/1/4/131407300/8668851.pdf
    • http://files.smbwriting.com/uploads/1/3/0/8/130814169/3264938.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/bejene.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/overhead_door_model_2026.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/laxefasigapabaxirasu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/lejur.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6918/files/odisha_cabinet_minister_list_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/2985/4368/files/roxegejogesubaludesegin.pdf
    • https://cdn.shopify.com/s/files/1/0435/4726/3131/files/85011996476.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/printable_time_cards.pdf
    • https://cdn.shopify.com/s/files/1/0437/1913/1285/files/pivanivogaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3256/7195/files/56882043801.pdf
    • https://cdn.shopify.com/s/files/1/0432/8852/7014/files/absorbancia_y_transmitancia_espectrofotometria.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.pdf
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/47824677705.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_off00006d4d.bin
2e3f1232a41d4033a5b04039cb3d9472034d11961040845686ae8260903cb0ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4D 5168 bytes
font_01_sfnt_off00007ee5.bin
e4b7d8e262d4efe1bdba6f3b88f498788f0361c30f732a42e7c4f9f55799b647		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE5 13276 bytes

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