Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1da79ed1185e82…

MALICIOUS

PDF

64.7 KB Created: 2020-08-04 19:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e977027e9e93e7d03eca92c0590dc28 SHA-1: c66d5e4c6b21cc30ada0ef1936d183bb14baed30 SHA-256: dd1da79ed1185e822d9787bcaeb0f8eb99a50314a13f66196e6bb2ce74d270e0
128 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains the same URL and text related to downloading content, suggesting a lure. The presence of a 'download button' heuristic further supports this attack pattern. The file is likely a downloader or part of a phishing campaign.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=important+days+pdf+download+telugu
    • http://files.bayareacombine.com/uploads/1/3/0/7/130775840/zoretifagoveju-gebefed-sanajixomejifo-rejenaxexenapiw.pdf
    • http://files.palmettoartsed.org/uploads/1/3/1/4/131452949/6319247.pdf
    • http://files.danyaleducation.com/uploads/1/3/1/8/131871535/sifoxejad.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/ponolejeratoxiwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/wosaredomalut.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/todexarim.pdf
    • https://cdn.shopify.com/s/files/1/0438/8821/4171/files/clicker_heroes_2_save_editor.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5878/files/92824834399.pdf
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/jafijividafewosixejusuvi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/zedoserejizejowe.pdf
    • https://cdn.shopify.com/s/files/1/0439/0502/4168/files/gaston_bachelard.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/84756106951.pdf
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/38205400980.pdf
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/82392736645.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/ciclacion_de_monosacaridos.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_off0000bf58.bin
1ab37764d4dd9077840e2ac59ad02907d2d9e8d3c98ba766b79e9fb980b62df5
pdf-font-stream PDF embedded font (sfnt) at offset 0xBF58 5492 bytes
font_01_sfnt_off0000d209.bin
cdf598712d1a06a2fdbb8b976e38da4f91b8528042c5ec14325aca770b5379e2
pdf-font-stream PDF embedded font (sfnt) at offset 0xD209 10408 bytes