Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba9a3e7798583cf2…

MALICIOUS

PDF

62.5 KB Created: 2020-08-29 02:03:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0afcda2bbf084c93a80ac75b3e128c89 SHA-1: 8b9c357f44de5749957d0dbb514b1db53e61b126 SHA-256: ba9a3e7798583cf215e93ea19d9c06bfe95b2c8691954ff37ae322ae39474fc5
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=xbox+360+emulator+bios+v3.2.4.rar+kickass'. Additionally, a high-severity heuristic indicates the document is designed to trick users into downloading a password-protected archive, a common tactic to bypass security filters. The document body also contains the malicious URL and references to a password-protected archive, reinforcing the lure.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=xbox+360+emulator+bios+v3.2.4.rar+kickass
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/havana_music_sheet_with_letters.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/merojukiwotujebu.pdf
    • https://cdn.shopify.com/s/files/1/0439/0970/9976/files/businessman_3_ringtone_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/oxford_collocations_dictionary_of_english.pdf
    • https://static.usrfiles.com/ugd/b8c837_099574f3ea9541caa72edc3b0b0028f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_356eaac9d8654425a136f3fe050ab2d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e1ead65e6914f5ca61070ed010f43bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0c3cb85d60d483fbed9a920a1dc5fa8.pdf
    • https://static.usrfiles.com/ugd/b8c837_9afae59efb8e45c0b4c29c0a2c94d215.pdf
    • https://cdn.shopify.com/s/files/1/0437/3220/5722/files/fafisutuxosutoxanetoxop.pdf
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/dowonapufawes.pdf
    • https://cdn.shopify.com/s/files/1/0428/5880/7455/files/4103229218.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_off0000a4ca.bin
2b4349636a6e42b1a59e6c0fb06bae1a3202eab8b4ceb5c823bea91e20b9ce1a
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4CA 5744 bytes
font_01_sfnt_off0000b868.bin
89927c42803a1b3cbb97f224ef0b8a45834fe002019b72535319a972497a41ec
pdf-font-stream PDF embedded font (sfnt) at offset 0xB868 11360 bytes
font_02_sfnt_off0000de73.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE73 4324 bytes