Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf95a516c199668c…

MALICIOUS

PDF

56.0 KB Created: 2020-07-25 17:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34c1f38666074d2bfcc56faebc4ebc00 SHA-1: 6472a8b5e51725751870ca00f335cdfbe56f1851 SHA-256: cf95a516c199668cc62979c00996de88f94c2541349e0c02054f2cd7382193b0
152 Risk Score

Malware Insights

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

The PDF contains a lure for a popular movie, 'Attu full movie tamilrockers hd', embedded within its body. It also features a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document also exhibits a PDF link farm heuristic, with numerous links hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=attu+full+movie++tamilrockers+hd
    • http://files.caseyharvilla.com/uploads/1/3/2/7/132712214/vevuzupakaki.pdf
    • http://files.beautyonlinestore.co.uk/uploads/1/3/2/6/132681545/kexul.pdf
    • http://files.trackerjacksinc.com/uploads/1/3/2/8/132815365/e279c35c7de0f44.pdf
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/pukerukis.pdf
    • https://cdn.shopify.com/s/files/1/0430/9241/0525/files/tivejaratiladudesadakineg.pdf
    • https://cdn.shopify.com/s/files/1/0430/3595/1257/files/79432344943.pdf
    • https://cdn.shopify.com/s/files/1/0435/5699/5233/files/9872494247.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/nitejotobaxiwoludiz.pdf
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/40356796146.pdf
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/49194959320.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdf
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/95287677757.pdf
    • https://cdn.shopify.com/s/files/1/0439/7875/2158/files/kimezajimijudolumegaxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/vuzerivuxopisepisepetufis.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/
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/nitejotobaxiwolu

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ceb.bin
6c5057f60982cd714815526e8674a0ea228ef13c122d7e640087de59e00df450		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CEB 5148 bytes
font_01_sfnt_off00008e70.bin
a8ba320a0ac8a73a5a8cc2c47ba30bd151ec5f51af4d5ac0b9daf85eaa8f1301		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E70 1936 bytes
font_02_sfnt_off000097b5.bin
bafe8b247ec890e3cccc45ee25c98d7021a383ee3a8f04f62c3ac77855f20b82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B5 10820 bytes
font_03_sfnt_off0000bcd4.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCD4 16164 bytes

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