Malicious PDF — malware analysis report

Static analysis result for SHA-256 93004db15def8c1a…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 02:22:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35e4a13f42bfbde48691a0cc2e2d7a1c SHA-1: 903e647aa25a53e082b38efcab76c1774943d8ff SHA-256: 93004db15def8c1a8abc93e3a45237905849d3edea9216b08a6d69f2d99563d1
160 Risk Score

Malware Insights

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

The PDF contains a lure to install a browser extension, indicated by the heuristic SE_BROWSER_INSTALL_LURE and the embedded URL pointing to 'idm chrome extension crx'. The PDF also hosts a link farm of numerous other PDF files, many hosted on Shopify, with the primary redirector URL being https://ttraff.com/pify. This suggests a social engineering campaign designed to drive traffic to malicious or deceptive content, potentially leading to malware downloads or credential harvesting.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=idm+chrome+extension+crx++6.+32
    • http://files.jerostique.com/uploads/1/3/0/8/130814017/9565301.pdf
    • http://gitesu.standoutindallas.com/uploads/1/3/1/3/131379732/2446831.pdf
    • http://files.bandofbrothersshakespeare.org/uploads/1/3/2/6/132696056/texudi.pdf
    • http://nibexa.thegenerationloveproject.com/uploads/1/3/2/6/132683071/suzemaj-vezubozatoxelu.pdf
    • http://files.kellieuukelly.com/uploads/1/3/1/4/131438692/656680.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/samsung_buds_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7208/5406/files/91078206086.pdf
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/namovuneroz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7328/9888/files/96200400439.pdf
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/exam_essentials_cae_vk.pdf
    • https://cdn.shopify.com/s/files/1/0435/4569/0266/files/sakomevilomasikiditezoxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5509/files/40627325206.pdf
    • https://cdn.shopify.com/s/files/1/0429/1156/3932/files/a_aware_se.pdf
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/nekumiwozavoxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3359/9893/files/house_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/90081731924.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdf
    • https://cdn.shopify.com/s/files/1/0433/7532/9441/files/how_to_format_readme._md.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_off000062d7.bin
cba45dae24205714f26e50f08ec7ddcf86c17c4b3e26c770b92b98d86c902cdd
pdf-font-stream PDF embedded font (sfnt) at offset 0x62D7 5424 bytes
font_01_sfnt_off0000752c.bin
f3db87c7087ef29ab77f00591926c7f50b32d1a7298df16ba9d17820ed5a48aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x752C 10128 bytes