Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e96645fde0e339…

MALICIOUS

PDF

45.8 KB Created: 2020-08-08 02:47:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a6e556fe0ce71fd29e723a58a4629a6 SHA-1: f89129a4ed2c0af7fc4b84e9ec4825c3c3911584 SHA-256: 36e96645fde0e33952b4fd29bd6dcfa8eab62ec9316c822a367f6fc316a61244
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to a URL that is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, contains the same URL and references company structures, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL is ttraff.cc, which is flagged as a redirector.

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=differences+between+public+limited+company+and+private+limited+company+pdf
    • http://files.jointeducationteam.org/uploads/1/3/1/4/131406344/balakedomara.pdf
    • http://files.mltcoins.com/uploads/1/3/0/8/130874205/2475d4064a4.pdf
    • http://files.xebex.eu/uploads/1/3/0/7/130775229/1745220.pdf
    • http://furewukek.tmwildflowers.com/uploads/1/3/0/7/130739024/e80ad38.pdf
    • http://files.dressage.us/uploads/1/3/2/6/132681145/c3da4f8ca8.pdf
    • https://cdn.shopify.com/s/files/1/0439/1282/2939/files/lafepejabafin.pdf
    • https://cdn.shopify.com/s/files/1/0439/4034/8059/files/sigofito.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0392/files/zurolugelaravokibi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6441/7695/files/mnemonica_miracles.pdf
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/mesibezidi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/godikuka.pdf
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/goleti.pdf
    • https://cdn.shopify.com/s/files/1/0434/0042/9731/files/nivij.pdf
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/61027994087.pdf
    • https://cdn.shopify.com/s/files/1/0431/3314/1149/files/bilirrubina_directa_o_conjugada.pdf
    • https://cdn.shopify.com/s/files/1/0429/1805/1996/files/totaline_thermostat_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/2997/8526/files/mifatobinunatewajafopeja.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_off00006540.bin
945ecc4e8f9c1ec3fc94b0f051331826f89a1d3f22e0a8839db4b4735c721fb3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6540 5576 bytes
font_01_sfnt_off00007832.bin
db496d797ea3a8b31c81e4b89b8aabd609647d6ea3b259e842da6465b38602bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7832 10232 bytes
font_02_sfnt_off00009b24.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B24 4324 bytes