Malicious PDF — malware analysis report

Static analysis result for SHA-256 e64ee77b878efd60…

MALICIOUS

PDF

42.8 KB Created: 2020-08-12 13:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 960393a0e3a140412a429f3ebe8703b5 SHA-1: ea391fbb8d9abcc3136c01c19f42c8044518ab87 SHA-256: e64ee77b878efd606cf7aa6995b4a5d30653aa429cb6e5650158db81cd8d5361
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to obscure the ultimate destination. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to distribute further malware or phishing content. The document body itself is heavily obfuscated but contains the target URL.

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/wb?keyword=rokinon%2014mm%20nikon%20manual
    • http://files.levitytherapeutics.com/uploads/1/3/1/8/131858287/xidaxanu_regitujusanam_niriputozo_jibagesuluv.pdf
    • http://files.lightthewaytraining.com/uploads/1/3/1/3/131380841/botegifugevugigozeku.pdf
    • http://files.mackenzywatsonsportfolio.com/uploads/1/3/0/8/130873790/aaab4d6b1c7d1.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/inelastic_buckling_of_columns.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pejodogidevetakuranuwa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0655/7340/files/zelajapusozuxuzomewifav.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/70412840475.pdf
    • https://cdn.shopify.com/s/files/1/0429/5606/2876/files/dunefo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3489/4755/files/95961515045.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/insulin_biosynthesis.pdf
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/dozuroxewemot.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sesolofulazige.pdf
    • https://cdn.shopify.com/s/files/1/0428/6355/8815/files/60913628662.pdf
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/bolted_and_welded_connections.pdf
    • https://cdn.shopify.com/s/files/1/0433/2473/5643/files/ferakibowuwubot.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_off00005d52.bin
6fac9f499c67ba6610e535f382b43bfcc350f98e2605e55a114bc431b85ed185		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D52 4452 bytes
font_01_sfnt_off00006c4e.bin
8665276d2ef9a647fab930e4ba93a9ebd6b41063fe91d1f8a635ec0f7ccec8a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4E 10516 bytes
font_02_sfnt_off00009047.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9047 4324 bytes

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