Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed7bee6adc973dad…

MALICIOUS

PDF

46.6 KB Created: 2020-08-30 20:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf303b2eafe0376082ba59b24a4410b7 SHA-1: 1d845ecd6a6a6ab331356bc8b0169d0eaf75bfa2 SHA-256: ed7bee6adc973dad5d319271c5ad97d735a15506304364050aacaf6f5fbb57ba
160 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a payment redirection lure, indicating a business-email-compromise pattern. The document body, though heavily obfuscated, contains URLs that are part of a link farm, with one primary malicious redirector URL identified. This suggests the document's purpose is to trick the user into clicking the malicious link, likely for phishing or malware delivery.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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/wix?keyword=cooperative+society+bye+laws+pdf
    • https://static.usrfiles.com/ugd/b8c837_faf09e797d1f4b0fb87d35e76c5b673f.pdf
    • https://static.usrfiles.com/ugd/6c032c_82ee030af8b74acbbd1704512ff6b38d.pdf
    • https://static.usrfiles.com/ugd/b8c837_40c5fd9c944a481ea9dd43ed29ba0cb3.pdf
    • https://static.usrfiles.com/ugd/b8c837_481fd52dcf924852a2f012dfa21719c0.pdf
    • https://cdn.shopify.com/s/files/1/0438/2644/6498/files/xabezojugivuvidanabe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4727/files/free_personalised_christmas_cards_template.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/social_psychology_aronson_9th_edition.pdf
    • https://static.usrfiles.com/ugd/739437_321cc0b6735646c6bdf10206ecf4ba6d.pdf
    • https://static.usrfiles.com/ugd/b8c837_2eb17ebcb54d4dd4b98a7b1c9242065a.pdf
    • https://static.usrfiles.com/ugd/b5472a_2dfe9e7b116a46c49ce362517799f32e.pdf
    • https://static.usrfiles.com/ugd/d1c05f_9f0f7d1aeaeb41c582f92910882a7c88.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridikesomuzumiburowafex.pdf
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/19112060813.pdf
    • https://cdn.shopify.com/s/files/1/0431/5339/1765/files/sunoto.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_off00006c9e.bin
49662d90bc09477153b58155c5c52b5f07f7ac5d55fcd6e01d7859c861653ab4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9E 5248 bytes
font_01_sfnt_off00007ea4.bin
18719ec5ecd867d912a44ff92eb3447e22e6aca82e83b187921e352a05dfbe75
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA4 9700 bytes
font_02_sfnt_off00009fcf.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FCF 4324 bytes