Malicious PDF — malware analysis report

Static analysis result for SHA-256 263ef2a6dbce4531…

MALICIOUS

PDF

48.1 KB Created: 2020-08-24 08:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dbf2fa7cb6172a39a4efba0fbedc4a91 SHA-1: 18d96bbbd86a7d3a4194cf5c724e9d23b1995e18 SHA-256: 263ef2a6dbce45318f834f604e6e9fadd01ff3fe974bc46a8fd6869f3669978d
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=g+n+m+form+date+2019'. Another heuristic indicates a link farm, suggesting an attempt to manipulate search engine results. The presence of a 'download button' lure further supports a malicious intent to trick the user into clicking the link. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=g+n+m+form+date+2019
    • http://files.beechwoodnaturopathy.com/uploads/1/3/0/7/130775380/mudokawezafomopatix.pdf
    • http://files.michaeljeffress.com/uploads/1/3/1/4/131437775/ludugojor.pdf
    • http://files.venga-japan.com/uploads/1/3/0/7/130740625/4244691.pdf
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/rufumenevekinakaniwu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdf
    • https://cdn.shopify.com/s/files/1/0437/4803/2673/files/dragons_dogma_names.pdf
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/vademecum_antibioticos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0774/5958/files/kim_jong_un_minecraft_skin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/5487115651.pdf
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/85369382102.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3645/files/23727315792.pdf
    • https://cdn.shopify.com/s/files/1/0440/6837/2632/files/dojuxulaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/7405/1491/files/coda_shop_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5382/files/lubugokojozed.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_off00007daf.bin
6ad7bc9dce3872e917e735c0d223a0899c5e3e490eab0c62fb860d39591bc78a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAF 5356 bytes
font_01_sfnt_off00008fcf.bin
169ceed8083bbdcf26bc2f40fa5309256cd989d9d316241a3bc47b1656e9af91
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FCF 10728 bytes