Malicious PDF — malware analysis report

Static analysis result for SHA-256 9787b654c3c35266…

MALICIOUS

PDF

42.0 KB Created: 2020-08-15 04:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9babacf7bea7cf32ebb34caa98c3ed55 SHA-1: e0acce4803f24cdb57f6147bc012361c7abda817 SHA-256: 9787b654c3c35266b60320dae6ebc8634d11d3c6a74939bfa5e90f66a0797842
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to 'ttraff.ru', disguised with a lure related to 'best ps2 emulator for android phone'. It also functions as a link farm, embedding numerous external PDF links, many hosted on Shopify. The presence of a visual download button further supports the social engineering aspect of this attack.

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.ru/pify?keyword=best+ps2+emulator+for+android+phone
    • http://files.ckmsband.org/uploads/1/3/1/3/131380596/logetileraj_vebawok_xazuzapeluwovej_bibiwivoxi.pdf
    • http://files.nassaucountynyhomes.com/uploads/1/3/0/8/130814466/furidebemivif_lileruvoxewenaj.pdf
    • http://files.wisdombytheletter.com/uploads/1/3/2/6/132682806/87017727277ddfe.pdf
    • http://pamipive.solesearchingsoul.com/uploads/1/3/1/4/131407406/2b18304.pdf
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/20478965721.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/90154324182.pdf
    • https://cdn.shopify.com/s/files/1/0428/0107/0247/files/86204462475.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/openvpn_duplicate-_cn.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9769/files/99172914621.pdf
    • https://cdn.shopify.com/s/files/1/0436/1427/3698/files/gezomofupapupode.pdf
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/lamination_sheets_colours_in_pakistan.pdf
    • https://cdn.shopify.com/s/files/1/0432/0506/6913/files/rifuzunekedowit.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/290577958.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/wabifivikajulodixozadef.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_off00006617.bin
efa4393d2e0437f420e56684ce3cc76200126b08a6bbb58fd75d48c332dd2e80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6617 5464 bytes
font_01_sfnt_off00007882.bin
2849bdf172863aefcc9676f1c48fed706e729078d8e9cef03eeed76c94a40849		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7882 10208 bytes

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