Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed743ba8cecc2e2c…

MALICIOUS

PDF

82.1 KB Created: 2020-08-18 20:52:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 202f38b9d36fd97ab929151c5485b312 SHA-1: f5dd86acd4da5cdb92d203b05da1fb8d3d32cb94 SHA-256: ed743ba8cecc2e2cb1a42534a3fe6af9c4004e614dcab1d9f6c9738066918a5a
130 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.cc'. This indicates a phishing or scam attempt, likely disguised as an invoice or payment document. The embedded URL 'https://ttraff.cc/pify?keyword=stratiform+gym+instagram' is a key indicator of malicious redirection. The document body, though heavily obfuscated, contains references to the redirector and other PDF links, reinforcing the lure.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/pify?keyword=stratiform+gym+instagram
    • http://wuposiz.13moonsbloodmysteries.com/uploads/1/3/1/1/131163908/4201523.pdf
    • http://files.proautomations.net/uploads/1/3/0/7/130775050/877616.pdf
    • http://files.yoursinfashion.com/uploads/1/3/1/3/131383283/josem_gujevebibi_bosixat.pdf
    • http://files.capitolplayers.com/uploads/1/3/0/7/130740165/f88f946.pdf
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/mournings_end_part_1.pdf
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/ammonia_gas_msds.pdf
    • https://cdn.shopify.com/s/files/1/0434/7366/6213/files/12668319569.pdf
    • https://cdn.shopify.com/s/files/1/0429/4384/0412/files/76241586647.pdf
    • https://cdn.shopify.com/s/files/1/0435/8563/4463/files/44228419017.pdf
    • https://cdn.shopify.com/s/files/1/0440/5572/4197/files/cambridge_advanced_learner_s_dictionary_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/gogig.pdf
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/61163478970.pdf
    • https://cdn.shopify.com/s/files/1/0429/3427/2163/files/15597890319.pdf
    • https://cdn.shopify.com/s/files/1/0433/0048/7332/files/coordinate_picture_graphing_free.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009e3e.bin
e61b11817f99bb103d69914022d53e4dbcf87298b68608f3923271d8854248e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E3E 7052 bytes
font_01_sfnt_off0000b05a.bin
e354049431b6b34917fa19e1552ee2deb82d2dc5a4b2a942f2cc2fee620764a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB05A 5260 bytes
font_02_sfnt_off0000c222.bin
0660a24df27a3880b2510b849af504393d814429bb35977f096ed831664cdd42		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC222 16456 bytes
font_03_sfnt_off0000eb23.bin
f199a354ba925137fa6330a52c211b3fd197f93fab6b5c3d7a3404238430f8f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB23 13392 bytes
font_04_sfnt_off0001168a.bin
f7984c2dd394f6aea1ecebde24b32528c01bfe1b6535cf6c467413ea2b275649		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1168A 19384 bytes
font_05_sfnt_off0001325c.bin
c3083234ffb6d861bab5d39791d58a5de51bcb1f3d85f264bb0581569c330447		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1325C 1740 bytes

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