Malicious PDF — malware analysis report

Static analysis result for SHA-256 afa4c9c13b5292ca…

MALICIOUS

PDF

51.0 KB Created: 2020-08-15 07:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60e551a32fa8ae9e3d7ef6eeb8a29cf0 SHA-1: 2bef7c07f0b571a2df075ce161804714eb382200 SHA-256: afa4c9c13b5292caa45d982d65aaf31421e140cd9e059bfff6c832a350ec8982
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wb?keyword=2002%20pontiac%20sunfire%20owner's%20manual'. This indicates a social engineering attempt to trick users into visiting a malicious site, likely disguised as a vehicle manual. The file also contains a PDF link farm heuristic, suggesting it's part of a larger SEO poisoning or link distribution scheme. No scripts were extracted, but the presence of multiple embedded URLs, including potentially malicious ones, supports the attack pattern.

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.cc/wb?keyword=2002%20pontiac%20sunfire%20owner
    • http://files.itseyez.com/uploads/1/3/0/7/130739234/745609.pdf
    • http://kogiparo.gonglumvrice.com/uploads/1/3/1/6/131606758/fekimeziwutef_wivajagovibafab_konat_gakunezopem.pdf
    • https://cdn.shopify.com/s/files/1/0437/4793/4357/files/pdf_sociologia_geral.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdf
    • https://cdn.shopify.com/s/files/1/0428/6060/9703/files/23709024503.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/robasizazotabor.pdf
    • https://cdn.shopify.com/s/files/1/0435/7577/1304/files/julagetebibuga.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/97522550454.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/jekuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/62203291033.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/13919463479.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_off00007b2d.bin
10a1a646cd299885bb84f9887d25406291c07230eb729cb7978b2e248f593177		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2D 5348 bytes
font_01_sfnt_off00008d48.bin
08ab3eb1d9d2ce7cd06c0b3a90ab58373ddf8c76c5a1ef7e9124cc74198fa0af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D48 10456 bytes
font_02_sfnt_off0000b116.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB116 4324 bytes

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