Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d58dd0d1b56b39…

MALICIOUS

PDF

44.0 KB Created: 2020-09-01 00:42:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 763edc6e49565863c78662f080f7ab79 SHA-1: 5b3aa8b1d16daefa8a89ec104078dc6fc421d1fe SHA-256: e4d58dd0d1b56b39f098056a1b9e29fec164b72309b64b1c979e0024907285d4
120 Risk Score

Malware Insights

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

The PDF contains a prominent link with the lure text "critical ops radar hack android 1", directing to a known malicious redirector. The document also functions as a link farm, containing numerous external links to other PDFs, likely for SEO manipulation to increase visibility of the malicious lure. No scripts were extracted, but the primary malicious activity is the redirection via the embedded 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.com/wix?keyword=critical+ops+radar+hack+android+1
    • https://static.usrfiles.com/ugd/87b9a8_a89107970e3147a4a51aba30a08cc69e.pdf
    • https://static.usrfiles.com/ugd/b0b521_95c01d0a3cf1450eafba5429a1f56259.pdf
    • https://static.usrfiles.com/ugd/63d3ad_35bc6c7d3c48476eac13013fbd69c2aa.pdf
    • https://static.usrfiles.com/ugd/4826f5_ca1fb9d8a75b4533a2bdefc0145574e5.pdf
    • https://static.usrfiles.com/ugd/b8c837_76d2d8ee02c84bb3b86aaea4000516f3.pdf
    • https://cdn.shopify.com/s/files/1/0450/2981/8532/files/eye_of_azshara_boss_guide.pdf
    • https://cdn.shopify.com/s/files/1/0457/3685/3660/files/tajijezikixigulosuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/ftl_ship_unlock_guide.pdf
    • https://cdn.shopify.com/s/files/1/0437/5235/8049/files/brew_install_android_studio.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3846/files/balochistan_board_matric_exam_date_sheet_2018.pdf
    • https://cdn.shopify.com/s/files/1/0428/2214/0063/files/56063065999.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_off00006eb2.bin
0f440b090cd7e23dab32d501fca175f9e9c0b0007cbeff1f5a95f665adb49817		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB2 5180 bytes
font_01_sfnt_off00008042.bin
6cef998aa7ea9d15bf163abed13e441a6bbbc3ceee53587b03099bef1361b56b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8042 10376 bytes

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