Malicious PDF — malware analysis report

Static analysis result for SHA-256 80bc02b82968120a…

MALICIOUS

PDF

39.2 KB Created: 2020-08-25 16:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d40f121b9a9f5343e4bfc90fa52b300 SHA-1: 0ebb6c7fc8ef4e958910a93a21f9e27902787271 SHA-256: 80bc02b82968120a3012b74e032ffce20e83cd65f437d55b19ab13a33421d818
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=chupana+bhi+nahi+aata+song+lyrics'. The document body, though heavily obfuscated, appears to contain the same song title, suggesting a lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious IOC is the ttraff.com redirector.

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.
  • 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.
  • 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=chupana+bhi+nahi+aata+song+lyrics
    • http://dufuji.apolloartdocent.com/uploads/1/3/2/3/132302936/c180a56ca.pdf
    • https://cdn.shopify.com/s/files/1/0433/8683/1004/files/91830496992.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/13827021443.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/38813506881.pdf
    • https://cdn.shopify.com/s/files/1/0432/9255/7467/files/asus_android_adb_interface_driver_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0436/4887/6702/files/noverodoxetoxiduganume.pdf
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/xufitipuvidep.pdf
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/vakaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7614883084.pdf
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/pathology_book_for_nursing.pdf
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/xepatisujavogojizupa.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/wazaxojugorav.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/ronamatel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/31371375015.pdf
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/convert_to_word_using_adobe_acrobat_x_pro.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_off00005414.bin
d447aee898d6a5a34b2812fa1f044e631978b9c229c7545b4d3cf5dfdb689586		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5414 5340 bytes
font_01_sfnt_off00006636.bin
37256d2fdf449956d0c7cea6606cf6de58cf46d950d7ea37ae7e9e40023848bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6636 13208 bytes

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