Malicious PDF — malware analysis report

Static analysis result for SHA-256 99ab0822a01441e9…

MALICIOUS

PDF

54.3 KB Created: 2020-08-15 20:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4888e5738e090538fa4d445812f2e4cd SHA-1: 4d72574efa9775d00e360fc843628e17471d1e27 SHA-256: 99ab0822a01441e9c2bf4079884deeb6b1daf51498ae8ad9fca029391ca1bbc2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for an 'Anime slayer last version apk' and embeds multiple links. One critical heuristic indicates a malicious redirector link pointing to 'ttraff.cc', which is likely used to deliver a payload. Another heuristic identifies a link farm, suggesting an attempt to manipulate search engine results or distribute content broadly. The document body, though partially corrupted, contains the lure text and a URL that is also present in the heuristics.

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=anime+slayer+last+version+apk
    • http://files.macshistory.com/uploads/1/3/1/3/131398560/39b2fa119.pdf
    • http://mikesulad.nicoleangelique.com/uploads/1/3/0/8/130874655/5070680.pdf
    • http://kuvudir.fathersofthedarkknight.com/uploads/1/3/1/6/131606289/5fa440e90e81.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/rabilozagigewut.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/arduino_language_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0435/8674/8579/files/tujetivedisepoputedibowo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/batokubu.pdf
    • https://cdn.shopify.com/s/files/1/0436/8095/6569/files/61375575906.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
stream_005_off000094f6.bin
b9bf446b6a2e44744724eea8e1d70e2418c0d7472a4c96d9c0c14a8b4d1a2454		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x94F6 22476 bytes
font_00_sfnt_off000056e7.bin
771f24654796c844cf214baf5fd5e7df82efd9ce723ab71da6a4ec0490c78a98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E7 4968 bytes
font_01_sfnt_off000067ab.bin
e61c769174402b64fcf655402552f931ce42463d6dd0bb7d40995fa2d5d5828b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67AB 14584 bytes
font_03_sfnt_off0000bc4a.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC4A 4324 bytes

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