Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cadeaba6083bdd2…

MALICIOUS

PDF

50.6 KB Created: 2020-08-26 04:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba926545f8f239cbd964e5e11a93d20b SHA-1: c1011a737c4dd814f54a68b87e727beb75c56420 SHA-256: 8cadeaba6083bdd29e35907505c3aecc2c043345e3e57d0f499f796f3b4e3f3c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=exception+processing+message+0xc0000'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0430/2897/1681/files/lomirere.pdf'. The document body, though obfuscated, also contains the malicious redirector URL. This suggests the document's primary purpose is to lure the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=exception+processing+message+0xc0000
    • http://kedeguto.mollymarrinbasketball.com/uploads/1/3/0/7/130776031/e78a05e414.pdf
    • http://files.4izon.com/uploads/1/3/1/4/131454304/4559412.pdf
    • http://jufif.senandsons.com/uploads/1/3/1/6/131606289/5460218.pdf
    • http://files.the-beijingguide.com/uploads/1/3/1/4/131407274/rodala-sikij-wodokevevowu-jiruxubo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/lomirere.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5906/files/3240111492.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nebedaxogatasimilore.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/51245529223.pdf
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/les_amplificateurs_oprationnels_cours.pdf
    • https://cdn.shopify.com/s/files/1/0434/7409/2198/files/xuzulixojik.pdf
    • https://cdn.shopify.com/s/files/1/0436/9956/8795/files/aladdin_monkey_crossword_answer.pdf
    • https://cdn.shopify.com/s/files/1/0435/7105/2703/files/calorimetry_lab.pdf
    • https://cdn.shopify.com/s/files/1/0433/3099/4326/files/magic_clothes_eraser_app.pdf
    • https://cdn.shopify.com/s/files/1/0439/3297/5272/files/video_player_software.pdf
    • https://cdn.shopify.com/s/files/1/0459/5705/4623/files/zigomulosedaz.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_off00006028.bin
5596a3d56c420e1b5b88e57c16c9687929abde9c36e0b296ab64924117836d1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6028 11724 bytes
font_01_sfnt_off00008640.bin
96fe61ea0b42c47a96b18f33aafee3a220a45f583d9be73c1c8bb4d062637d39
pdf-font-stream PDF embedded font (sfnt) at offset 0x8640 5388 bytes
font_02_sfnt_off00009875.bin
25f0f99c49ce79188284781e9b36a1d4ceafaa19dfcb6b462656502a91f5ec16
pdf-font-stream PDF embedded font (sfnt) at offset 0x9875 10788 bytes