Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22d7e788d45d6ca…

MALICIOUS

PDF

43.0 KB Created: 2020-09-04 01:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c23b9bc140af2487a90e2ecf8e5155d4 SHA-1: a0cc1b92eea9d874d371c59f6395de018939785a SHA-256: f22d7e788d45d6ca151f00b6d6adc3aa620fa74f74f13c7c063c9ae65ab7e316
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document also exhibits characteristics of a PDF link farm, with numerous embedded links to other PDFs, suggesting a broad attempt to distribute malicious content or manipulate search engine results. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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+kannada+janapada+song
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/disacaridos_ejemplos.pdf
    • https://cdn.shopify.com/s/files/1/0457/3167/6326/files/nezimugekavaxakewepud.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/game_black_desert_mobile_apkpure.pdf
    • https://cdn.shopify.com/s/files/1/0438/8130/0123/files/verotitozuzolexazo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0119/1328/files/weight_loss_workouts.pdf
    • https://static.usrfiles.com/ugd/b8c837_506ecb35fdbd4189b8bc2a72fbc73606.pdf
    • https://static.usrfiles.com/ugd/b8c837_f451dc816fca4411af055875a0af53e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_6a67e6680ec14ab492e57faf6bda9fb7.pdf
    • https://static.usrfiles.com/ugd/e1d12c_614f3ec6b9724f3f9ef5ca05837bd2fd.pdf
    • https://cdn.shopify.com/s/files/1/0431/4978/7285/files/zunapomitemiratup.pdf
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/4602358560.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/a_crystal_of_time_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/5103/0430/files/aloha_oe_ukulele.pdf
    • https://static.usrfiles.com/ugd/e1d12c_614f3ec6b9724f3f9ef5ca05837bd2fd.pd

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006d3e.bin
5a8f4c491d08998befa6e1169e2bda41c24ac4190e56679e2d79696546df0548		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6D3E 3584 bytes
font_00_sfnt_off00005b01.bin
72294dd49234978d99fbc5805c182dd64730206f636ea826d609dc1f6a733c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B01 5344 bytes
font_02_sfnt_off00007b22.bin
884cf0bae0c306a2b2e757f18d86bb894550bd948a03c388391fe5c91cd34fbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B22 14340 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.