Malicious PDF — malware analysis report

Static analysis result for SHA-256 56e61c6acf56feac…

MALICIOUS

PDF

47.6 KB Created: 2020-08-30 07:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fccbf66e577c790751cdff14f449df8 SHA-1: e3844634d53bb1b8bde93e2451f91761178c297a SHA-256: 56e61c6acf56feac972556b7056c1005a28d3921c514e7f4b667c4f79c57121d
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Hid proxpoint plus reader manual' and embeds a large number of links. One of these links, https://ttraff.club/wix?keyword=hid+proxpoint+plus+reader+manual, is identified as a malicious redirector. The document also contains a mass of external PDF links, many pointing to static.usrfiles.com, which is flagged as a link farm. The combination of a deceptive lure and malicious redirector indicates a phishing or social engineering attack.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.club/wix?keyword=hid+proxpoint+plus+reader+manual
    • https://static.usrfiles.com/ugd/ca32a8_261eed1619d548808f2a55754a31611c.pdf
    • https://static.usrfiles.com/ugd/f3ecbe_525f2d8be17b4edd981a357cf0d8a88c.pdf
    • https://static.usrfiles.com/ugd/26481d_e0477c3f2a8b41a7aaaa46d8645adb88.pdf
    • https://static.usrfiles.com/ugd/be19e1_44c8d871399244969226e37ad115ad18.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fd7f8ff25d8455e83d95834c6718109.pdf
    • https://static.usrfiles.com/ugd/857e61_e59fb0214e824a249ef54e38efdc1290.pdf
    • https://static.usrfiles.com/ugd/b8c837_8012811e613d4442b9bae7f5fa8b8c84.pdf
    • https://static.usrfiles.com/ugd/739437_29afb7efa593474c9ef30546c6f9c0fa.pdf
    • https://static.usrfiles.com/ugd/fd30ac_c1e1d91ad68848aeba9473af1fc4702e.pdf
    • https://static.usrfiles.com/ugd/b8c837_378f41b42f414a37bd4cc1379b8527a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_fe7949643807437c89404e23c6aef9fe.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2165/files/automata_theory_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/93476319145.pdf
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/geweduduwoseximelumedofas.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2523/files/depugijotununezom.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_off00006d76.bin
97c94b23ab571458ff04c085f2d678f0dea5415beec7d10c5fb6f574eda2f22f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D76 5016 bytes
font_01_sfnt_off00007e65.bin
288c0856b80893f1677274faf637b741856d6700d538ba4981829e5a30de2da1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E65 10388 bytes
font_02_sfnt_off0000a1d3.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1D3 4324 bytes