Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cd2362020d4f3eb…

MALICIOUS

PDF

51.1 KB Created: 2020-08-31 06:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73420ed0aca5145eb85f729003804c10 SHA-1: be97e1fa5228e2eda12a9035a85a648824f1dfca SHA-256: 1cd2362020d4f3eb8bbd5fa631a625144dc08224ae35ef876e91f819f47f4a9e
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO link farms and redirecting users to malicious sites. The primary malicious URL identified is a redirector designed to lead users to further malicious content. The document body, though partially garbled, contains keywords related to the embedded links, suggesting a lure to download a seemingly legitimate file which instead redirects 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.cc/wix?keyword=maquinas+electricas+y+transformadores+kosow+pdf+descargar
    • https://cdn.shopify.com/s/files/1/0429/4914/8838/files/98723617225.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/authenticity_paradox.pdf
    • https://cdn.shopify.com/s/files/1/0431/7865/5903/files/baby_kissing_wallpapers_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/duruwezuwi.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e8b58bd82aa49dc92c738dd33a65d70.pdf
    • https://static.usrfiles.com/ugd/299074_0cebbd6c8de84646983b8f115e85916d.pdf
    • https://static.usrfiles.com/ugd/eda9ba_0f6a042456ca4e5d876bf315a4c4aab1.pdf
    • https://static.usrfiles.com/ugd/b8c837_c6865350c6904ee082f0a3b299c15577.pdf
    • https://static.usrfiles.com/ugd/b8c837_660e91e05a264cf58167280eab440006.pdf
    • https://static.usrfiles.com/ugd/3ce946_c8b2ca3f63b44d67845b43d65f8f53fe.pdf
    • https://static.usrfiles.com/ugd/b98abb_2ada36c7d8be4ab2b063b495587420ce.pdf
    • https://static.usrfiles.com/ugd/d3758e_971455383e4a4e86b16171630ca30916.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064f3.bin
f158c237d0937c6775056627f2b2e7c228271251e7187587d5097c5d82b9e184		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F3 1856 bytes
font_01_sfnt_off00006d0e.bin
0a39801d1e800f504fd366dc0376c6a5e8dba5fb72148c7a7fe981ba0640d566		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0E 5744 bytes
font_02_sfnt_off000080a0.bin
8cc1982fd7e1af5a2980125430e8708e83d722633aa57a8ee959955e17500727		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A0 15540 bytes
font_03_sfnt_off0000aec0.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEC0 4324 bytes

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