Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec98a9e9b54f1da2…

MALICIOUS

PDF

39.9 KB Created: 2020-08-29 23:52:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f678d72a6c5e4990c85abbf6fff800f SHA-1: 2fd55a7bef9aa3fac9b6e55242c69aa1a9081a0f SHA-256: ec98a9e9b54f1da232b5da6b1ae1ed6746f375edb3f5288a147ac86150da8380
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=novel+nick+carter+bahasa+indonesia+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. No scripts were extracted, and the family is unknown due to the lack of further indicators.

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.cc/wix?keyword=novel+nick+carter+bahasa+indonesia+pdf
    • https://cdn.shopify.com/s/files/1/0436/2433/3472/files/difference_between_invoice_and_bill.pdf
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/consumer_reports_shark_vacuum_cleaners.pdf
    • https://cdn.shopify.com/s/files/1/0435/4582/1338/files/92937122428.pdf
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/apium_graveolens_medicinal_uses.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/wilusasuzuj.pdf
    • https://static.usrfiles.com/ugd/b8c837_d946a00d414141e79af84fb08e1ae5de.pdf
    • https://static.usrfiles.com/ugd/d54300_1cc4ab6d5ecd4e2e873d59f9fbf3eff3.pdf
    • https://static.usrfiles.com/ugd/b8c837_c4a9303f070e4eaf9df2091cfe583edf.pdf
    • https://static.usrfiles.com/ugd/b8c837_d66773c55c68409da9e384c497cd7da9.pdf
    • https://static.usrfiles.com/ugd/b8c837_15387c28c41044aba3c3c4ca373d09cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1c9d490aab846f5b80f94d44adeccb7.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6fa92e436784cf9956ea7197c1b1fa1.pdf
    • https://static.usrfiles.com/ugd/b8c837_7c00e3fd763d49aeb52b56d4275fa331.pdf
    • https://static.usrfiles.com/ugd/0d089b_d66f2f93611a42ccaad6951ebf47ac1d.pdf
    • https://static.usrfiles.com/ugd/b8c837_0acc878a58574c9383fb1351e1197809.pdf
    • https://static.usrfiles.com/ugd/b8c837_c6eba044e763446e97e044e59ea99c06.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_off00004f9f.bin
83f45453875a709ecf21b88eae04acb8c4b74139284c3adc5805bada3b1d95d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9F 5264 bytes
font_01_sfnt_off0000617d.bin
fa3524bdc5717ca34601992efe98663a45240fdbc98f1aa4d4c46ded417c31de
pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 10156 bytes
font_02_sfnt_off00008441.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x8441 4324 bytes