Malicious PDF — malware analysis report

Static analysis result for SHA-256 edee615d8e2f7f41…

MALICIOUS

PDF

59.9 KB Created: 2020-08-08 08:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3336058852d1cb62315c8b608fed525c SHA-1: ef2337fd9291cce4568c9c3044ef0ac4ea7fc2e6 SHA-256: edee615d8e2f7f41066e7d67f9cfa3409eef43e6bdc9a70b8e9b33d5cae44f64
148 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link is designed to lead users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, suggesting an attempt to manipulate search engine results or distribute multiple malicious links. The presence of a download button lure and a callback phone lure further supports a malicious intent, likely for phishing or scamming purposes.

Heuristics 5

  • 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
  • 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.cc/pify?keyword=oxford+dictionary+english+to+bangla+pdf+download
    • http://files.centrecollegialalberta.com/uploads/1/3/1/3/131380177/6114809.pdf
    • http://files.preacherrhetorica.com/uploads/1/3/1/3/131398036/7840310.pdf
    • http://bubewe.sandyfarms.com/uploads/1/3/0/7/130775934/gusopivedetufuwove.pdf
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/miwapufibawapebunopitenax.pdf
    • https://cdn.shopify.com/s/files/1/0434/1537/1932/files/swashbuckler_5e_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22893269325.pdf
    • https://cdn.shopify.com/s/files/1/0452/0073/6407/files/different_categories_of_communication.pdf
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/91981214322.pdf
    • https://cdn.shopify.com/s/files/1/0429/7487/1711/files/enfermedad_vascular_cerebral_isquemico.pdf
    • https://cdn.shopify.com/s/files/1/0430/8962/5241/files/69030971002.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/tomurerazamid.pdf
    • https://cdn.shopify.com/s/files/1/0428/4701/0972/files/les_accents_exercices_corrigs.pdf
    • https://cdn.shopify.com/s/files/1/0435/4975/3507/files/point_slope_to_standard_form_calculator.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006515.bin
bc88c4f40aca2cea1442603381fb0076ac97bdf8d92296c8896809cbba7bc6b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6515 5848 bytes
font_01_sfnt_off00007909.bin
bfb5faabcba67c0aceed49ccf5581c84c26a80791ab5ae5786d575d9d49c7153		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7909 13068 bytes
font_02_sfnt_off00009fc9.bin
0526fc0759f3131ef62e3f4a58c9c8c786714ac6cd1792c267a734786fefd234		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FC9 14556 bytes
font_03_sfnt_off0000cd2d.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD2D 16092 bytes

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