Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d74db2efd619905…

MALICIOUS

PDF

37.6 KB Created: 2020-08-15 05:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e232f6588d53bff4fed4915b8a7773e SHA-1: e66344b78bb99dbafb966112b058b1028a503bfb SHA-256: 7d74db2efd6199055f4dae77803bcee49fb3e90a0c1d7356465e26a1869dc16f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF document contains a lure for remote support tools, specifically mentioning 'Teamviewer 7 crack'. It embeds a link to a malicious redirector at https://ttraff.ru/pify?keyword=teamviewer+7+crack, which is designed to lead users to malicious content. The document also features a large number of embedded links, many pointing to benign Shopify URLs, but the primary malicious link is clearly identified. 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=teamviewer+7+crack
    • http://files.flippingcoinsgetaway.com/uploads/1/3/2/6/132682758/6579300.pdf
    • http://zodirijuj.rabbitrailsupply.com/uploads/1/3/1/4/131412032/1e3bb22485.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/37503758492.pdf
    • https://cdn.shopify.com/s/files/1/0435/3848/1320/files/62201741140.pdf
    • https://cdn.shopify.com/s/files/1/0434/7327/2998/files/surivubat.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/honda_motorcycle_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/bexuwufut.pdf
    • https://cdn.shopify.com/s/files/1/0448/3465/2321/files/eating_disorder_powerpoint_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/sesofevasavufaxaderibilid.pdf
    • https://cdn.shopify.com/s/files/1/0431/0358/4413/files/1486483757.pdf
    • https://cdn.shopify.com/s/files/1/0434/6498/2693/files/povefezeladireb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91337380597.pdf
    • https://cdn.shopify.com/s/files/1/0447/1272/2585/files/76212087678.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/rumulimakurekitoviru.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/sonumakewozipavebeted.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_off0000565d.bin
1bc4457be206da59afcdb94f45569ce2c251f22e44415541e5c3fe53d06ae39e
pdf-font-stream PDF embedded font (sfnt) at offset 0x565D 4980 bytes
font_01_sfnt_off00006759.bin
bc0eeacc8c77d5dfdc4c864768936649bad0d7d3c639308319b9c618c86c60b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6759 10040 bytes