Malicious PDF — malware analysis report

Static analysis result for SHA-256 7318f8699f424a60…

MALICIOUS

PDF

40.8 KB Created: 2020-09-02 10:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b55d24a8fb10e41bee8e914cfd45c332 SHA-1: dae70b0673fdc2d57d7ff6d99c527122ca370047 SHA-256: 7318f8699f424a60fce0f34115ced9a0ad49bfbffbdf46c9d983dd73c07b53ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links and a lure to copy/paste content into a command-line interface, indicating an attempt to trick the user into executing malicious commands. The primary malicious URL identified is ttraff.club, which is flagged as a redirector to potentially malicious infrastructure. While no scripts were directly extracted, the 'SE_CLIPBOARD_COMMAND_LURE' heuristic strongly suggests the document's intent is to facilitate further execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.club/wix?keyword=eclipse+32+bit+for+ubuntu+16.+04
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0463/4551/9261/files/44585003446.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/active_listening_skills_handout.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/38560699322.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/96509181728.pdf
    • https://cdn.shopify.com/s/files/1/0428/5045/1623/files/42430507589.pdf
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/award_template_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0434/2090/9725/files/kineticist_build_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/tazikuxekigulojasudukiviz.pdf
    • https://cdn.shopify.com/s/files/1/0437/4613/2129/files/68592963198.pdf
    • https://cdn.shopify.com/s/files/1/0433/8748/6358/files/appeasement_policy.pdf
    • https://cdn.shopify.com/s/files/1/0447/2622/3001/files/3950375512.pdf
    • https://static.usrfiles.com/ugd/0adedf_81f581a6813743b28a433aef40f4546d.pdf
    • https://static.usrfiles.com/ugd/1d64af_2127d2e93c544359a7b6f036deea7210.pdf
    • https://static.usrfiles.com/ugd/aef5b7_721202025bbc4d7bac6076612885e101.pdf
    • https://static.usrfiles.com/ugd/ae15ca_c5eee02160e14e91a1c82945de8adda2.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f57.bin
add544ceb042f31778a29b4ca6addaa17f323e6271c89c817a618dde82f777ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F57 5660 bytes
font_01_sfnt_off000072bc.bin
4cf53f8a99d18f2098823f5533c9181f36897f446678272cea17d328f492e774		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72BC 10452 bytes

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