Malicious PDF — malware analysis report

Static analysis result for SHA-256 24157622c126a105…

MALICIOUS

PDF

40.7 KB Created: 2020-08-07 15:46:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72e5d03b3893f0f3a37b69f5234b3252 SHA-1: 529dc1acdcde21d9d12e10aa8ac66f7557a4d55c SHA-256: 24157622c126a105471d0bc2f7ac348d002dff659bce9eb624123743949053f2
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=bypass+capacitor+calculation+pdf'. Additionally, it features a PDF link farm heuristic, indicating a large number of external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. The primary attack pattern involves tricking the user into clicking the malicious link, which likely leads to a phishing page or malware download.

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.ru/pify?keyword=bypass+capacitor+calculation+pdf
    • http://kilux.cynchitpants.com/uploads/1/3/0/7/130776445/98a23.pdf
    • http://files.healthnutdiets.com/uploads/1/3/1/8/131858592/36002dc7e99.pdf
    • http://files.westmountwildrugby.com/uploads/1/3/0/7/130740323/89f42d093.pdf
    • https://cdn.shopify.com/s/files/1/0435/2727/4645/files/5495853902.pdf
    • https://cdn.shopify.com/s/files/1/0432/2741/4696/files/32529500327.pdf
    • https://cdn.shopify.com/s/files/1/0440/2829/7381/files/meniwekaxogop.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/fepajewavefugiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/91228365159.pdf
    • https://cdn.shopify.com/s/files/1/0431/8163/7794/files/burulamamobit.pdf
    • https://cdn.shopify.com/s/files/1/0435/3346/7807/files/multivariate_uniform_distribution_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/tozepakozef.pdf
    • https://cdn.shopify.com/s/files/1/0438/5443/0368/files/87893070373.pdf
    • https://cdn.shopify.com/s/files/1/0432/5729/9097/files/luvepegitaxoxuwudinomumod.pdf
    • https://cdn.shopify.com/s/files/1/0433/3672/8744/files/39117524637.pdf
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/3829671389.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_off000062ae.bin
fe498ae3cf27d20a82cc5e78da74e98bab7aa795ff532206f05a3ff720350c42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62AE 5300 bytes
font_01_sfnt_off000074d0.bin
11622bfe905cfc261952ed3f3d1cdbf4c710864f9905d39313c01ea8acb4e86d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74D0 9724 bytes

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