Malicious PDF — malware analysis report

Static analysis result for SHA-256 36010e904d0a9483…

MALICIOUS

PDF

35.4 KB Created: 2020-09-04 16:09:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62e52fcc7e568c455c168da4ee58e398 SHA-1: 385aa8aeba518d9ff6872ddeffd31e9d1c4ea3dd SHA-256: 36010e904d0a94839a6398a88fb5251a34ab01e872ab226e2034329219422436
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/pify?keyword=lagu+bintang+kehidupan+lirik'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting PDF files. The document body, though heavily obfuscated, contains the same redirector URL and a Shopify URL, suggesting a lure to a malicious site under the guise of providing song lyrics or other content. No scripts were extracted, limiting further analysis of payload delivery.

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.me/pify?keyword=lagu+bintang+kehidupan+lirik
    • https://cdn.shopify.com/s/files/1/0432/7371/5880/files/sql_server_2020_enterprise_edition_installation_step_by_step.pdf
    • https://cdn.shopify.com/s/files/1/0432/9088/6312/files/fopononeg.pdf
    • https://cdn.shopify.com/s/files/1/0460/0142/2497/files/8456888999.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3627/files/kodis.pdf
    • https://cdn.shopify.com/s/files/1/0435/6128/7839/files/payment_of_bonus_act_2015.pdf
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/77061475476.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2472/files/21808480917.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2374/files/sivedoxib.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/80608625117.pdf
    • https://static.usrfiles.com/ugd/69695d_02a75cbbbe104f02be41ccc966c5d1bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_c44405b3f47f411096c8036deed1dd57.pdf
    • https://static.usrfiles.com/ugd/0df15e_550231cbb5734dbe81a749d2a3fc5bf6.pdf
    • https://static.usrfiles.com/ugd/26938b_ccc3b1b5870c4c39be01d561851513e4.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_off00004d5b.bin
4b4dc0bbe4ff133020684eb22980117fe5ac9a8d9d0f6afd86b6c4e3a177970f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D5B 5188 bytes
font_01_sfnt_off00005ef9.bin
b90cb8ddb625682e5f36515dde7bc473f0132145fcef74359c6b5041a92065f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF9 10060 bytes

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