Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6eeb1a834c880e0…

MALICIOUS

PDF

38.2 KB Created: 2020-08-30 21:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8b79f63ff7a10978b5bedc8c95f7ec0 SHA-1: 0271dc73e8a91f822743c4ebc07d4141d6f7641a SHA-256: a6eeb1a834c880e09bab94e184d7c4b16c1227662062d32230db5089da4774c4
142 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily garbled, contains text fragments suggesting it's a manual for a financial device, which aligns with the 'SE_CALLBACK_LURE' heuristic indicating a potential callback phishing or tech-support scam. The primary malicious IOC is the redirector URL, which likely leads to a phishing or scam page.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=first+data+fd200+manual
    • https://static.usrfiles.com/ugd/4826f5_dd8fe0e1b7ee4441afb6b31281dc10ab.pdf
    • https://static.usrfiles.com/ugd/8a419d_17945b813f484faf8597ac55d184d69a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b8873021ca7949f9a9aab3c01abd3296.pdf
    • https://static.usrfiles.com/ugd/b8c837_63d78a0c47994cc59ddf90da23030338.pdf
    • https://static.usrfiles.com/ugd/d99ef3_b27d8091c6aa49318529f2415ceff11e.pdf
    • https://static.usrfiles.com/ugd/b8c837_f813b776b3b2450196a554948a86c5eb.pdf
    • https://static.usrfiles.com/ugd/98e298_5922d9cf574947aa9e4a86eff815a400.pdf
    • https://static.usrfiles.com/ugd/856cea_f8c2c069769341de80480ea8f5f19d9f.pdf
    • https://cdn.shopify.com/s/files/1/0438/8339/7275/files/south_africa_visa_form_dubai.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/lufidoveti.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93616534700.pdf
    • https://cdn.shopify.com/s/files/1/0430/8202/3061/files/anglo_norman_studies.pdf
    • https://cdn.shopify.com/s/files/1/0435/1465/8980/files/27833190829.pdf
    • https://static.usrfiles.com/ugd/b8c837_b818b6c3533a4e4dbe5128b69367856b.pdf
    • https://static.usrfiles.com/ugd/3eed2b_82264978f7174db5b7315f679d8dc038.pdf
    • https://static.usrfiles.com/ugd/0adedf_611c4a83df6d452bb35101b150e1bb80.pdf
    • https://static.usrfiles.com/ugd/19103d_14e933ccb3f64b1dba504420e8d023fe.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_off00004bf9.bin
aae35f6778d1035f9283b995fd91916e8053e719353a5b67c07b0a4ad7971d66
pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF9 5280 bytes
font_01_sfnt_off00005dd1.bin
d50c4cbc92de0c1a4ef0355451bb552e711f4b3362004613deb633c44394f69f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD1 9648 bytes
font_02_sfnt_off00007eff.bin
968155b4bbb1d8aafe201d00b11685298055219ca08dbbd938b0ea6bce61fe4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFF 3236 bytes