Malicious PDF — malware analysis report

Static analysis result for SHA-256 b56693bb31749d63…

MALICIOUS

PDF

68.6 KB Created: 2020-09-22 09:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02862e9fc5dbdc57e42516387ac451c5 SHA-1: 187f4f33564a48e61d0741a0f7dae94d13116d76 SHA-256: b56693bb31749d63f04da54b48bc290c3a64f65c444dab3ee0ddfc7c52f44065
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a mass external PDF link farm, indicating an attempt to direct users to harmful content. The document body, though heavily obfuscated, contains a URL that aligns with the heuristic findings. The presence of a callback lure suggests a phishing or scam pretext.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/wix?keyword=words+with+the+letter+bright
    • https://ec6b7149-316f-4cce-8275-f91b45520d45.filesusr.com/ugd/3bf302_775ca58e68484e87960f318bcc6d760a.pdf?index=true
    • https://dac5a3d9-17ed-4bcb-83c0-1cbf0d86726d.filesusr.com/ugd/c8683e_d65d668a046647dfa328460a093e8138.pdf?index=true
    • https://4231f7cf-c5f8-4d20-a4b9-9da5120b7b40.filesusr.com/ugd/112488_9df1066d131d4271a74972e87db88619.pdf?index=true
    • https://86a9edbe-fdf9-401b-a2a0-9a2d3958c708.filesusr.com/ugd/e2f7e1_eac406ac5490435d8005c0a6e8ab3de2.pdf?index=true
    • https://2b3532d1-ebb1-4f2c-8bb1-570bf1825272.filesusr.com/ugd/68ec51_b268ef58f97247308c635b40b33f4cf0.pdf?index=true
    • https://0cd57259-f27e-48ef-8fa9-36b22fd239d6.filesusr.com/ugd/f390e7_5ddde27ff70b44b7b41b4fda143fb0f8.pdf?index=true
    • https://78663d00-3045-498e-b0b4-cfef4608b352.filesusr.com/ugd/6846fe_56eaa1a5cb894a50b541893dc3edf6c2.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/2869/9553/files/submit_button_react_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/2711/1841/files/sotevozegegosaximovezi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/67060876198.pdf
    • https://cdn.shopify.com/s/files/1/0435/5637/2631/files/woman_thou_art_loosed_movie_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/2521/0263/files/motoluxabixabezereraromuf.pdf
    • https://cdn.shopify.com/s/files/1/0439/1088/9624/files/badinerie_classical_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0433/6487/6444/files/anatomy_and_physiology_questions_for_medical_coding.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_off0000cea2.bin
b47c448c4cbe9352d6d19f647e8a38657094c05ef7a5b9af8e416290304760f2
pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA2 5124 bytes
font_01_sfnt_off0000e01f.bin
b06aa5fadeaec5df0cc6cf5846c3c18b32d28dbcc3aef26724e6ef43cbec279a
pdf-font-stream PDF embedded font (sfnt) at offset 0xE01F 10948 bytes