Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa22dfc3e06242b…

MALICIOUS

PDF

115.6 KB Created: 2020-08-24 10:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8427e0d75e790cc1608cec0f311fe7d3 SHA-1: 734616198d0fb4f5a64df78f4cd45f374e6fb401 SHA-256: faa22dfc3e06242b05d2edf02239d3da68e4ff847ab45a8e160e41495b4e3ed6
120 Risk Score

Malware Insights

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

The PDF file contains multiple heuristic firings indicating malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=alter+ego+2+test+pdf. The document body is heavily obfuscated but contains references to the malicious URL. No scripts were extracted from this sample.

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/pify?keyword=alter+ego+2+test+pdf
    • http://nosipa.johnsaponaro.com/uploads/1/3/2/6/132696067/fegixujad.pdf
    • http://wibexu.adorablefrenchbakery.com/uploads/1/3/2/6/132681862/xuwodufazinevidifa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/6996764555.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/australian_embassy_islamabad_visa_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/zijapedovakojifojin.pdf
    • https://cdn.shopify.com/s/files/1/0437/0615/5173/files/loop_antenna_calculation.pdf
    • https://cdn.shopify.com/s/files/1/0435/7265/8335/files/99241916182.pdf
    • https://cdn.shopify.com/s/files/1/0432/1932/0992/files/cessna_150_aerobat_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/android_one_smartphone_under_10000.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/o_level_maths_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/vuluna.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017511.bin
b0e0d76c812b88ae103d9717779af01bca7867fa2a745c742fa17e59925b7a89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17511 5120 bytes
font_01_sfnt_off00018695.bin
48d5a1b361dfb2783abdf6408ceccf853cf1c18b5f39bad88a2af64cc413c3b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18695 10896 bytes
font_02_sfnt_off0001ab92.bin
cbdbfe760b4a5610a5c6cdae2de6bcd38aba6314ce4962aa9665e81d84448a33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AB92 16220 bytes

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