Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cb5227d2fc3746b…

MALICIOUS

PDF

52.4 KB Created: 2020-09-02 09:52:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b3b172bd8653cd907cdfaa37641a5bc SHA-1: 1fddedbf17b47f87d9c8fe451b70e4ba820c7bfc SHA-256: 9cb5227d2fc3746b448240006581282e66e2006e635aaa88426c648bb3c73c41
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for '3ds max 2017 crack free'. The document body, though heavily obfuscated, also contains this URL. The presence of a link farm and a remote support tool lure further indicate malicious intent, likely to trick users into downloading and executing further payloads.

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.me/pify?keyword=3ds+max+2017+crack++free
    • https://static.usrfiles.com/ugd/7f929b_ecdd67564a174027a094d32a811cdf43.pdf
    • https://static.usrfiles.com/ugd/b8c837_ebaebab9db8e494c85fdf9b5bd3c9800.pdf
    • https://static.usrfiles.com/ugd/37428b_1d2f832513294b5d858875e28ad5c1b0.pdf
    • https://static.usrfiles.com/ugd/08e331_eb335c591ff24ba0b3d1cc650b25a777.pdf
    • https://static.usrfiles.com/ugd/64db51_6fd172cfc7ac4110bffdd5cdfc2568c8.pdf
    • https://cdn.shopify.com/s/files/1/0431/8560/2721/files/99419726875.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/gokudesipujanurepariwowu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/mepanajivoberunevugow.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/marvel_future_fight_agent_venom_guide.pdf
    • https://static.usrfiles.com/ugd/d79848_f4e7cdf4609c45478a3c7a26377db5a3.pdf
    • https://static.usrfiles.com/ugd/6203b9_4d90c1d90a714dba8e4d185cb3cbe9ee.pdf
    • https://static.usrfiles.com/ugd/8b2c09_b636497eb4b84d298cdb00aab68956f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_fae4bc71b46c44b0aae9655d242d7e39.pdf
    • https://static.usrfiles.com/ugd/e481ce_770ab594a650424fa1a18f4300fc95cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_caba378897434a4e9a4c7be3dabc2fbf.pdf
    • https://static.usrfiles.com/ugd/902d29_f2ba8b6b889e478ab4a17b85c567ec76.pdf
    • https://static.usrfiles.com/ugd/5b9365_43f0c85e588744a1af4c83b4fb810f1b.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_off00008246.bin
70565d52160480ad12603490ef6645d99add335e215e08db1ae2afbc01b5529e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8246 5740 bytes
font_01_sfnt_off000095cd.bin
2c1538e96a60f41d3c1a0e9a14e64beffe97cca7dd3ac6cbb0b29223e9145f9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x95CD 14996 bytes