Malicious PDF — malware analysis report

Static analysis result for SHA-256 76361b6124726ca2…

MALICIOUS

PDF

49.0 KB Created: 2020-08-22 11:49:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d9be40493e6c07dfaa04ce942285f9e SHA-1: 214eefead33de4d5d5fb6076881034900c9c509e SHA-256: 76361b6124726ca2d9a7f33a00bd43524c697a6f69e3793ba2b2a8df67ef9baa
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link and a link farm, indicating an attempt to direct users to harmful content. The presence of a 'download button' heuristic further supports a social engineering lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=boney+m+christmas+carol+songs+free, which is likely used to redirect the user to a malicious site.

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.cc/pify?keyword=boney+m+christmas+carol+songs+free
    • http://files.makeastatementjewelry.com/uploads/1/3/0/9/130969477/kifumejojafabet.pdf
    • http://files.littlepieceofmyheart.com/uploads/1/3/0/7/130740517/aaef0f352ce451e.pdf
    • http://files.rafsthoughts.com/uploads/1/3/0/7/130775275/xogosinonudagazarora.pdf
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/62992406970.pdf
    • https://cdn.shopify.com/s/files/1/0432/0693/4696/files/32307292306.pdf
    • https://cdn.shopify.com/s/files/1/0431/4831/2738/files/birdman_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/8017/9109/files/partial_differential_equations_and_boundary_value_problems_with_applications.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/advanced_excel_full_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0438/9198/2491/files/badminton_new_rules_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/2204/9695/files/28181970688.pdf
    • https://cdn.shopify.com/s/files/1/0445/3181/0463/files/risk_board_game_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/12208496537.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49181926903.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/57698216538.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c38.bin
b0293a62ed1c1150c2da1effc6b0836f674c2858cfbc81e99fa7bac3697568d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C38 1820 bytes
font_01_sfnt_off00007514.bin
d3df1033f3ef37be9f5a8fe591d39968f58ac5d9e41effac1632b8733d520c80
pdf-font-stream PDF embedded font (sfnt) at offset 0x7514 5448 bytes
font_02_sfnt_off00008771.bin
205366fe7a689d1f54e7a5ffa1a1f7b16a1a91f3dd438edae9fa6596bd690430
pdf-font-stream PDF embedded font (sfnt) at offset 0x8771 15104 bytes