Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e1669c2b45c6dc9…

MALICIOUS

PDF

52.5 KB Created: 2020-09-09 03:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ad5002804c388c3cf9867f93b604edf SHA-1: ac8fc3931eb2a9cbfebc3a2f4a4f06eddee4720b SHA-256: 1e1669c2b45c6dc9de994fa5067087f4ab4c314228720d3aade160e562056920
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=video+show+pro+apk+cracked'. The document body, though heavily obfuscated, contains text related to 'Video show pro apk cracked', suggesting a lure for potentially pirated software. The file also contains a PDF link farm heuristic, indicating it's designed to host numerous external links.

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.club/wix?keyword=video+show+pro+apk+cracked
    • https://static.usrfiles.com/ugd/db1da1_3a5859a94d9b475880dbfcf5aae78b63.pdf
    • https://static.usrfiles.com/ugd/ebc5f9_76964770a4f7435b9c6cd3c077ecfc8d.pdf
    • https://static.usrfiles.com/ugd/956c05_519907e8f07c45dc934d2c10a23e192d.pdf
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/72347588462.pdf
    • https://cdn.shopify.com/s/files/1/0460/1557/8279/files/35829992813.pdf
    • https://static.usrfiles.com/ugd/18f527_f2037efb3efe48c1a67de4d292031a22.pdf
    • https://static.usrfiles.com/ugd/3225da_8dfa1ea4a5f742d7b00329a71d88f929.pdf
    • https://static.usrfiles.com/ugd/bcc0e4_dea99ace4f9948c8908974af907cc508.pdf
    • https://static.usrfiles.com/ugd/3b47cb_75e1c0417d4841bd9ccdf3af87366ae9.pdf
    • https://cdn.shopify.com/s/files/1/0437/2434/1400/files/83016836133.pdf
    • https://cdn.shopify.com/s/files/1/0434/0957/1990/files/refifo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b11.bin
f515850b8149371247be4805590682bf6b61a40573e71ab724e8d7527df370b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B11 4852 bytes
font_01_sfnt_off00007bb0.bin
650b93760b71d257b3e61212c2adc43237a44e35ff8d4da271e8915c8aa3f751		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB0 10644 bytes
font_02_sfnt_off0000a069.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA069 16092 bytes
font_03_sfnt_off0000b531.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB531 4324 bytes

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