Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8f89aa015f21799…

MALICIOUS

PDF

45.9 KB Created: 2020-09-15 06:16:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d9559767a800d426a460e4db1184d51 SHA-1: 35faea529661add1bf7f3764493bdf2934d2fada SHA-256: b8f89aa015f217994b84c8d7c36b4de0a708a5418afa8d4b4c0beec9b4a2cc37
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a URL designed to impersonate Amazon and claim an account is locked. This is further supported by the PDF_SEO_LINK_FARM heuristic, indicating a large number of outbound links, many of which are likely malicious or part of a link farm. The embedded URL 'https://ttraff.link/pify?keyword=amazon+locked+account+gift+card' is the primary IOC, likely leading to a phishing or scam page.

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.link/pify?keyword=amazon+locked+account+gift+card
    • http://files.angelaokeefe.com/uploads/1/3/0/7/130775518/lasudawosavi_bapos_danopeso_kaxakuvakado.pdf
    • http://files.alliedcommunity.org/uploads/1/3/0/9/130969498/bexoxopenawu_wuzedalodamiba_vozalunegetef.pdf
    • http://xaziz.evelinemariasmith.com/uploads/1/3/1/4/131437160/1050573.pdf
    • http://files.new-style-trailer.com/uploads/1/3/2/6/132681342/duvogot.pdf
    • https://static.usrfiles.com/ugd/e3ff21_3b567ae59f514287b3b865578d58fe07.pdf
    • https://static.usrfiles.com/ugd/e42c35_82bd1cd5461846e987fa25caa4a2f81b.pdf
    • https://static.usrfiles.com/ugd/1c8c1e_19adb220c9714001aae3f20299edf79c.pdf
    • https://static.usrfiles.com/ugd/01f9b9_e88da00ab9804d0fbf293df0e12d6bf8.pdf
    • https://static.usrfiles.com/ugd/031dda_bc5830114d284c7abaf2d510ecbad088.pdf
    • https://static.usrfiles.com/ugd/221f3a_184dee6bf1f044c2bf5766cb35b0c3ca.pdf
    • https://cdn.shopify.com/s/files/1/0434/3844/0598/files/tugaguzirizenofukusomo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/18479128605.pdf
    • https://cdn.shopify.com/s/files/1/0429/7523/2153/files/the_america_s_test_kitchen_cooking_school_cookbook_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/3065/9750/files/tubav.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_off00006606.bin
527c9e64bff06b072b44c75f6ecf634f8adf7171cc71bba9f04c0f19a7247435
pdf-font-stream PDF embedded font (sfnt) at offset 0x6606 5148 bytes
font_01_sfnt_off0000776b.bin
35c645d8bc02282f75a1eb239c3f38faa82d30d48307ecec7b1df694e0470dc9
pdf-font-stream PDF embedded font (sfnt) at offset 0x776B 10764 bytes
font_02_sfnt_off00009c3c.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3C 4324 bytes