Malicious PDF — malware analysis report

Static analysis result for SHA-256 5555754043600e8a…

MALICIOUS

PDF

65.7 KB Created: 2020-08-08 00:38:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e1b2e5dc3ff69e5ecaebce3c091c8b7 SHA-1: 634000129d679914887a21f19e5dcd6f85af13c8 SHA-256: 5555754043600e8a9ba798289d6b6882b221d850b96cbaf7511c67f30064948d
182 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=certificate+formats+pdf'. Additionally, it exhibits a PDF link farm behavior with numerous external links, many hosted on cdn.shopify.com. The document also explicitly requests sensitive recovery information, indicating a phishing or social engineering attempt to steal credentials or keys.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/pify?keyword=certificate+formats+pdf
    • http://files.wioainoregon.org/uploads/1/3/1/8/131857540/xeritemejewaj-mapof-jedul-lofufuwo.pdf
    • http://files.wtho.org.nz/uploads/1/3/1/4/131437438/1f291b2c06f1.pdf
    • http://files.13gfab.com/uploads/1/3/0/8/130813922/kipomipenorove.pdf
    • https://cdn.shopify.com/s/files/1/0429/2683/3823/files/lazutexiteg.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0497/files/92240114506.pdf
    • https://cdn.shopify.com/s/files/1/0433/9272/9246/files/58701941454.pdf
    • https://cdn.shopify.com/s/files/1/0432/1656/8482/files/illegal_window_file_name.pdf
    • https://cdn.shopify.com/s/files/1/0431/7668/9825/files/pegatebiradimo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/human_anatomy_marieb_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/9465/3595/files/atherosclerosis_review.pdf
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/xufifabekupuke.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/66042488775.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdf
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/rituwusef.pdf
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/ganegabikugube.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_off0000b9c9.bin
4e9b2a9cec4638e131a85ba75cd311c882ce6245737eb4d448a04a6ad11bc435		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB9C9 5172 bytes
font_01_sfnt_off0000cb45.bin
2263fbe25ae59a4c4b382c89576f8de3b773efe3ab1bdd013f097ad1bfdbb971		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB45 15036 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.