Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f0ad37aee83565d…

MALICIOUS

PDF

96.9 KB Created: 2020-09-05 02:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eb5af3460692a276952e839796188aa4 SHA-1: 0af44dc8554bc9180ca2b29e6a5520317f1a10a0 SHA-256: 4f0ad37aee83565da304189e6b5853822e3d4b6631a19bc9379f9bfa10bdfe07
162 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body and heuristics indicate an advance-fee scam lure, likely attempting to trick the user into clicking the malicious link. The primary malicious URL identified is ttraff.com, which redirects to a page related to 'short information about cricket in english'. The PDF also hosts a large number of other links, many pointing to static.usrfiles.com, suggesting a link farm or SEO poisoning tactic.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=short+information+about+cricket+in+english
    • https://static.usrfiles.com/ugd/cbe7f7_15d09e98fd6846688d23fd452d838ecf.pdf
    • https://static.usrfiles.com/ugd/455f95_db9cf526cc384aaea7bf774341486cc6.pdf
    • https://static.usrfiles.com/ugd/e5412a_1ab9f1480b304bf88bc376f337bcbc7c.pdf
    • https://static.usrfiles.com/ugd/b91566_0dd5a3a9cb1542f3a311aff65c463e6e.pdf
    • https://static.usrfiles.com/ugd/b8c837_0666e95256234955a04ebe5362be9d6f.pdf
    • https://static.usrfiles.com/ugd/4c3d6a_9188ede7916d48a9b20ce58220cb2a52.pdf
    • https://static.usrfiles.com/ugd/b8c837_d722f0ddacd243dc8ecf1715c8a918ef.pdf
    • https://static.usrfiles.com/ugd/b8c837_49773783d9b1483f950c79338b3366ba.pdf
    • https://static.usrfiles.com/ugd/a1fb72_a22247f0d1524799a115176e87eaab0a.pdf
    • https://static.usrfiles.com/ugd/bd7df1_f8528cb887564cebb6197eb5f36d7e5e.pdf
    • https://static.usrfiles.com/ugd/22739b_b32fd64fd42a4eafa8707990fda65179.pdf
    • https://static.usrfiles.com/ugd/1b8612_988cce57685f465a908dcbdbb86a2b25.pdf
    • https://static.usrfiles.com/ugd/804ff6_156e5dd3eea8433182297b220db04376.pdf
    • https://cdn.shopify.com/s/files/1/0434/5649/5783/files/saddleback_basic_english_grammar_book.pdf
    • https://cdn.shopify.com/s/files/1/0440/9055/6568/files/88073048581.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_off000131a0.bin
75f43f72d929aa5b60aec2425da42950b076433c75fbc9a3d0308a5f20344f07
pdf-font-stream PDF embedded font (sfnt) at offset 0x131A0 5484 bytes
font_01_sfnt_off00014411.bin
a099eaed25be8875d9bb16f7e34e0e62fea34bc298d8176f214083d42437b501
pdf-font-stream PDF embedded font (sfnt) at offset 0x14411 10724 bytes
font_02_sfnt_off00016835.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x16835 4324 bytes