Malicious PDF — malware analysis report

Static analysis result for SHA-256 38ed56465dcef5eb…

MALICIOUS

PDF

49.0 KB Created: 2020-08-15 03:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c3806458a2a223269b41cdee45c3bb9 SHA-1: cb2e244400e001716adacbc3bf9799d2d8dd9ca7 SHA-256: 38ed56465dcef5eb26101fd5bfa14a4d2fa750376794a06f6babdc6f9b05a5c8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text referencing 'Tapping auto clicker ios' and the malicious URL. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or content distribution network used to host further malicious content. The primary attack vector appears to be social engineering via a lure related to an auto-clicker tool, directing the user to a malicious site.

Heuristics 3

  • 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.
  • 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=tapping+auto+clicker+ios
    • http://jokasade.rhythmsofawoman.com/uploads/1/3/1/4/131406717/joninefadif.pdf
    • http://xanewaro.hrv4training.com/uploads/1/3/0/8/130874478/pogedirefato_tifefowametonek_kofexofifasigub.pdf
    • http://files.mountbethelpublishing.com/uploads/1/3/0/7/130739860/nirulu.pdf
    • http://files.earthsideprenatalyoga.com/uploads/1/3/2/6/132681885/kapazito_vovobozejumimel_pupumawivemep_ledularires.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/73921470439.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/27877769656.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/gadoritinozibiwubumiv.pdf
    • https://cdn.shopify.com/s/files/1/0436/0775/2861/files/53948192527.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98629167596.pdf
    • https://cdn.shopify.com/s/files/1/0437/7955/5486/files/ruzab.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0293/files/lagu_akhir_cerita_cinta_karaoke_akustik.pdf
    • https://cdn.shopify.com/s/files/1/0434/0590/1991/files/44680628653.pdf
    • https://cdn.shopify.com/s/files/1/0440/9229/3272/files/81987525404.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/alien_shooter_hack_version.pdf
    • https://cdn.shopify.com/s/files/1/0431/3563/1514/files/80557604101.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_off00008207.bin
6e552736990604b1d948b802a1874b5c86a7dbdcf8970dc43a51926808ae1e2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8207 5116 bytes
font_01_sfnt_off0000937d.bin
b837c3042ad4e6290408f04f8d68b7cbf5e5dca7c4c5b3d6e642636201eab563		 pdf-font-stream PDF embedded font (sfnt) at offset 0x937D 10504 bytes

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