Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e6bde6ec246491…

MALICIOUS

PDF

106.2 KB Created: 2020-07-25 07:51:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ad48f6e0bc5990a5409e4d0018fb119 SHA-1: a649955e0aac2ce473f0b81c51870c31bf93eb01 SHA-256: 26e6bde6ec246491908703513e056eacce8d785486385410074def9850bd4754
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, identified as a PDF link farm. One of the primary links directs to a known malicious redirector, ttraff.cc. The document body appears to be obfuscated or corrupted, but the presence of the link farm and the malicious redirector strongly indicate an attempt to lead the user to harmful content. 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=balu+songs++in+naa+songs
    • http://files.barrvillemc.org/uploads/1/3/0/7/130776118/423244.pdf
    • http://files.hugsforhounds2.ca/uploads/1/3/2/8/132814935/vigajosejelavujafu.pdf
    • http://files.sanfordfilmfest.com/uploads/1/3/0/8/130813768/2894551.pdf
    • http://files.alightalive.com/uploads/1/3/2/7/132712050/gogusafewap.pdf
    • https://cdn.shopify.com/s/files/1/0433/8342/3126/files/jajidopi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/fokibaruzutefevowojima.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/damad.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0942/files/19558862725.pdf
    • https://cdn.shopify.com/s/files/1/0430/3549/2503/files/41256923206.pdf
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/69723674959.pdf
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/69687785730.pdf
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/11933500956.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5568/files/39787710910.pdf
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/zapinajegevozojoza.pdf
    • https://cdn.shopify.com/s/files/1/0429/6451/7023/files/65792485501.pdf
    • https://cdn.shopify.com/s/files/1/0434/9440/8352/files/42213701634.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.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_off00015e28.bin
08ee5700f10921d000d0c4ad427148e5a15453b3adbc97afe4a924dba247714c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15E28 4488 bytes
font_01_sfnt_off00016d6a.bin
a179f401bf9cff260a9d4f5e54ba64675cd7a02c60fc654fcc3646fd3684422d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16D6A 14840 bytes

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