Malicious PDF — malware analysis report

Static analysis result for SHA-256 59d4a9ccdd888839…

MALICIOUS

PDF

42.5 KB Created: 2020-08-14 04:27:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 024fca913e58f247106a5de8c9ca3410 SHA-1: af104126c8293f0feedd1e4418edfe18e74415ad SHA-256: 59d4a9ccdd888839c737b126686115f09b23363b629ba264a1d2fa8bb1a46d7a
160 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the payload. The document also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm for SEO poisoning or to distribute malicious content. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document's content is designed to trick the user into installing or interacting with remote support tools, a common social engineering tactic. No scripts were extracted from this sample.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=my+asus+tablet+wont++apps
    • http://zofuvun.yesterboltonsaltounchurch.org/uploads/1/3/1/4/131483281/0698c8ee1.pdf
    • http://jevivupi.sacredheartparker.org/uploads/1/3/1/4/131453109/mefatevedinalamiwoz.pdf
    • http://files.harchumanservices.com/uploads/1/3/1/8/131858044/dewikuwezoka.pdf
    • http://files.saltcitydozen.com/uploads/1/3/1/3/131398336/f4da8a414f2b.pdf
    • https://cdn.shopify.com/s/files/1/0436/5195/6894/files/3d_seismic_interpretation.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/giratajolexodomofavewolov.pdf
    • https://cdn.shopify.com/s/files/1/0435/3110/8504/files/86537672080.pdf
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/firefox_about_config.pdf
    • https://cdn.shopify.com/s/files/1/0431/2121/3591/files/gedadu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/dafineputiparoliwene.pdf
    • https://cdn.shopify.com/s/files/1/0435/2973/2248/files/rabopojebo.pdf
    • https://cdn.shopify.com/s/files/1/0440/7332/0600/files/lisir.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6335/files/lubukinidis.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/nalin.pdf
    • https://cdn.shopify.com/s/files/1/0431/4474/1015/files/paradise_lost_book_11.pdf
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/predicts_2020_artificial_intelligence.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_off00006908.bin
6c8b845f67419aca49874edb21b8c5c914776265a5561d3df9aac271c9232c93
pdf-font-stream PDF embedded font (sfnt) at offset 0x6908 5056 bytes
font_01_sfnt_off00007a65.bin
94d7f7bb129d03a8bb4c77a20f56939f8fdafe6f04449e59c82a836a825d4a41
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A65 10148 bytes