Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabbe6abfe360f74…

MALICIOUS

PDF

46.5 KB Created: 2020-08-30 03:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b850707885b3a23a0685d0d24cfa146 SHA-1: df7059ed99a36906db96951f11d3fe27d086051b SHA-256: eabbe6abfe360f741f826c1e50e120a617267e14beffcd7e52b88804ee162426
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded URL https://ttraff.ru/wix?keyword=metal+gear+solid+5+guide+pdf+download is the primary indicator of this malicious redirection. The document body also contains this URL, suggesting it is the intended lure for users. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which point to static.usrfiles.com, likely an attempt to appear legitimate or to distribute the malicious link.

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=metal+gear+solid+5+guide+pdf+download
    • https://static.usrfiles.com/ugd/67e251_b72d7342d81346d3b54fe44abd056c7e.pdf
    • https://static.usrfiles.com/ugd/f09a9d_28f5e64e430649e680585656e4beb1ab.pdf
    • https://static.usrfiles.com/ugd/89363e_0ff14ce35ef44931b8cf33bb3307b01e.pdf
    • https://static.usrfiles.com/ugd/2e79a6_29823255f54649fc881199d5e5977a1c.pdf
    • https://static.usrfiles.com/ugd/289c5e_9ef436604806419fa5a58253f0b05ce5.pdf
    • https://cdn.shopify.com/s/files/1/0432/2538/3073/files/proposal_skripsi_akuntansi_biaya.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/business_writing_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/equivalent_ratios_6th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/xejugudivowuweleje.pdf
    • https://static.usrfiles.com/ugd/5de1df_a4e1166f5b064c37aedd13d94ab425ad.pdf
    • https://static.usrfiles.com/ugd/b8c837_def89ea1257645e09c74abcd83d51160.pdf
    • https://static.usrfiles.com/ugd/38bf1f_08c8baff2c914c40866c8a2c6914ec23.pdf
    • https://static.usrfiles.com/ugd/9cc572_62130e98220244c69091b1192763afb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_bdfd312934db4f7abe1f82318d54d2ac.pdf
    • https://static.usrfiles.com/ugd/06497e_467efeab8bb24079a4dee60da78eac49.pdf
    • https://static.usrfiles.com/ugd/576447_5ad9b607db26428f88d21d1d9fc45862.pdf
    • https://static.usrfiles.com/ugd/b8c837_8561ea4ef212406ea4f6aa3007d15b07.pdf
    • https://static.usrfiles.com/ugd/34e21e_1b60788725ec4be284ec0866f5bf9f18.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b2a.bin
249d74ba582ea1a08f991733a660171fd27ca748842add079d7fb18b08791804
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2A 5432 bytes
font_01_sfnt_off00007dce.bin
d17f959b24754aacf8e191b9ae2f02f5b282f1fe589394381c8cf343147d2fc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCE 14356 bytes