Malicious PDF — malware analysis report

Static analysis result for SHA-256 42773f5403e569df…

MALICIOUS

PDF

44.3 KB Created: 2020-08-25 15:52:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e80ed2e0c65c3e03f4d67c82a21f45fd SHA-1: 37c3fa39c060a8922fcfdfe02e03088a7d97c647 SHA-256: 42773f5403e569df54a8e1e4fb5d8821f1b3c7c04d19579ff83d08315824ba8e
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by a remote support tool lure. The document body and embedded artifacts indicate an attempt to trick the user into downloading a file, likely a payload, from the malicious URL. The link https://ttraff.cc/pify?keyword=teamviewer+11+mi%25E1%25BB%2585n+ph%25C3%25AD is the primary indicator of malicious intent.

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.cc/pify?keyword=teamviewer+11+mi%25E1%25BB%2585n+ph%25C3%25AD
    • http://files.eceprek.com/uploads/1/3/1/3/131382797/a131e1c1b54.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/23667959972.pdf
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/xidiruvex.pdf
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/jenogorivubefumaka.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/songs_about_saturday.pdf
    • https://cdn.shopify.com/s/files/1/0439/3032/1051/files/find_the_angle_between_two_vectors.pdf
    • https://cdn.shopify.com/s/files/1/0449/5376/3999/files/56549089127.pdf
    • https://cdn.shopify.com/s/files/1/0433/2758/6457/files/xamubo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/likizimufet.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/40640988122.pdf
    • https://cdn.shopify.com/s/files/1/0428/2079/6583/files/pisemakaniv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056c8.bin
a9661186a3f5273aabf9d715873b351c37bdf25b0ae6038ce40c3c2177035d0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C8 5320 bytes
font_01_sfnt_off0000688e.bin
27b6290c6d55c83a0923093eaba23b88a3535d510a80f2a49a511485fd49ec8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688E 11404 bytes
font_02_sfnt_off00008d85.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D85 16204 bytes

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