Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd9ee9e326eedb8…

MALICIOUS

PDF

78.0 KB Created: 2020-08-29 21:58:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 473dff7a856f280b5d45c322f58914fc SHA-1: 5d78550b8fd458581d198cfc8fa58c72933d44eb SHA-256: afd9ee9e326eedb86e84963a85938ef3d745c986561b41691e0413cc88bd145e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=puss+y+chuta+la+pel%25C3%25ADcula+llena+on-li'. This URL is embedded within the document body, suggesting an attempt to trick the user into clicking it. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The overall purpose appears to be directing users to malicious infrastructure.

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.ru/wix?keyword=puss+y+chuta+la+pel%25C3%25ADcula+llena+on-li
    • https://cdn.shopify.com/s/files/1/0430/8172/8151/files/voguluwirodib.pdf
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/bodhidharma_enseanzas_zen.pdf
    • https://cdn.shopify.com/s/files/1/0436/3495/0304/files/campaign_finance_reform_definition_in_history.pdf
    • https://cdn.shopify.com/s/files/1/0432/2109/0471/files/92958781013.pdf
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/47746758298.pdf
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/25221633857.pdf
    • https://cdn.shopify.com/s/files/1/0434/9673/4885/files/lp_bronkitis_kronis.pdf
    • https://static.usrfiles.com/ugd/3649d2_bbfe2529e4e34ef19cd5bf111b4ba9fe.pdf
    • https://static.usrfiles.com/ugd/eb4c03_25e44a1543954145bb3b8bab5fa888a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb275e7da9c0471490bf517e1f9ab0d3.pdf
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/pemozufe.pdf
    • https://cdn.shopify.com/s/files/1/0431/2779/9969/files/ati_comprehensive_predictor_2015.pdf
    • https://cdn.shopify.com/s/files/1/0462/6746/5890/files/fusozav.pdf
    • https://cdn.shopify.com/s/files/1/0440/9714/2936/files/dijuvarupuselujekasaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/sofomexesagafowujajedo.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_off0000bfeb.bin
7e2f7872763a1ee8f5217b0baee6dec44b8fc9cebb881ac73a372ef10f58fc1d
pdf-font-stream PDF embedded font (sfnt) at offset 0xBFEB 4996 bytes
font_01_sfnt_off0000d0e7.bin
2168a91a27a9d15efc63d8b8e9beadd3bdac5b00d136a4a1acc0b8c089c32c7f
pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E7 12384 bytes
font_02_sfnt_off0000f429.bin
8376678f11c3e44d5f195f22c240053e1ac4d878d42ff31d18ff9a7db875ff2d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF429 11656 bytes
font_03_sfnt_off00011a27.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A27 4324 bytes