Malicious PDF — malware analysis report

Static analysis result for SHA-256 960765c55c38ae20…

MALICIOUS

PDF

40.0 KB Created: 2020-09-01 02:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 997896f0a290f60e5161016a4dbb14a7 SHA-1: a0e94bd14eb7fda1eb973ca32aa809be61763afb SHA-256: 960765c55c38ae20d42023e87f150258087eadba7f4a6bb92c2055443d6b2931
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=azure+storage+account+file+share+arm+template'. Additionally, it exhibits a PDF link farm heuristic, with many links to external PDFs, including 'https://static.usrfiles.com/ugd/3ce946_d161e9c30185435da3fdeaee2192dc13.pdf'. A high-severity heuristic indicates a lure for clipboard command execution, instructing the user to paste content into a shell, suggesting an attempt to trick the user into running commands.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=azure+storage+account+file+share+arm+template
    • https://static.usrfiles.com/ugd/3ce946_d161e9c30185435da3fdeaee2192dc13.pdf
    • https://static.usrfiles.com/ugd/99965f_219aeecb798244919822f6517b9bd0e0.pdf
    • https://static.usrfiles.com/ugd/db1da1_b1387ae30c9c48f58107dc52f9c1f3a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_25286c4c53824c33bd323f6e63ff0e53.pdf
    • https://static.usrfiles.com/ugd/99a8f2_8f9624c7cc204de0bac262d7de0e74ec.pdf
    • https://static.usrfiles.com/ugd/eed56f_ab0bff29ef2947dc9a1aa8e314c8a0b7.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_6d7041f6cc9c450ea62ea4176f3dca90.pdf
    • https://cdn.shopify.com/s/files/1/0428/4222/6854/files/96702622012.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46150969179.pdf
    • https://cdn.shopify.com/s/files/1/0436/5674/1022/files/alcoro_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/my_talking_tom_game_hack_version.pdf
    • https://static.usrfiles.com/ugd/b8c837_073592ebeac649b99be6b569b541cea0.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2a9a602e43c4a968887a957642c7d41.pdf
    • https://static.usrfiles.com/ugd/03ae60_c009db1e13654c34830e79a95c0a2f88.pdf
    • https://static.usrfiles.com/ugd/b8c837_66acace23f7948cab8c857045f26fa7b.pdf
    • https://static.usrfiles.com/ugd/8acad3_d342caf7c2964148a8323a853b749e4c.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_off00005dec.bin
7748a9618b947000ba290c56e4159a85a3fbdad34232374e3d6f7429d4ca7781
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEC 5468 bytes
font_01_sfnt_off0000706c.bin
96a0927f422fb4af7cd2509345efd6f912065b4baabf516a1d173c725f45cd63
pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 10180 bytes