Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f374781bf393110…

MALICIOUS

PDF

49.0 KB Created: 2020-08-21 20:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66ec5059a74fb274a0f57ede99e8e750 SHA-1: a6126c0590afa051c2ed6bc4b704d37eeb17c669 SHA-256: 9f374781bf393110c1037666c7d06c460589b698f9d8767c73fa91e1b980484e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates that the PDF links to a known malicious redirector infrastructure at ttraff.com. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting the document's primary purpose is to drive traffic to this malicious site. 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.com/pify?keyword=channappa+channegowda+janapada+song+lyrics
    • http://files.sweetsister-chicsister.com/uploads/1/3/0/7/130776518/6ed655a65662.pdf
    • http://bifumog.nflpicks16.com/uploads/1/3/1/4/131407089/webigiv_vavaze_pirenusiwubo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/95782100855.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8244/files/52405832462.pdf
    • https://cdn.shopify.com/s/files/1/0431/2255/7095/files/lugodufuxukodejunizi.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/fefixu.pdf
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/51706186102.pdf
    • https://cdn.shopify.com/s/files/1/0428/6958/8124/files/36122664551.pdf
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/dolamaviti.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/flash-_all._bat.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_004_off00006997.bin
3f0f682b2c5d23e482d64e04b44fdcab2f95766f8e56ee721af3d5fc1d4d5cee		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6997 11144 bytes
font_00_sfnt_off000056d0.bin
e33ba744cdd881831e0f84fce32e753d42e435b96be8eea0c07223b79bf0f7e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56D0 5508 bytes
font_02_sfnt_off00008719.bin
1f756b46481ac718095810e133e155ec1caf818687d25c20e8b002f727d713c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8719 2116 bytes
font_03_sfnt_off000090c5.bin
09366dea9a440b01361af8ededf461f4737682c0d78fe59904b708e44880aa0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90C5 10620 bytes

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