Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0efc899b18ea09f…

MALICIOUS

PDF

141.9 KB Created: 2020-08-10 17:21:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 017c547c765215b6097da5610edfae6c SHA-1: feb05c981871c58a37d423a90573137f1c442294 SHA-256: b0efc899b18ea09f84d267a7c9c46669b4fe5d4ded7409d7dd7a8430ab1fc3fe
150 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, ttraff.com, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the URL and keywords suggesting a lure for users searching for specific content. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=bhagwat+puran+in+bengali+pdf
    • http://files.novagbc.com/uploads/1/3/1/3/131380109/7645755.pdf
    • http://files.gitchgear.com/uploads/1/3/0/8/130814909/714161.pdf
    • http://files.lisawbwalker.com/uploads/1/3/1/3/131383358/vizagewogobowed.pdf
    • http://files.erraproject.com/uploads/1/3/0/8/130874490/4792655.pdf
    • http://files.patrickmorriseyunlawfulacts.com/uploads/1/3/1/0/131070374/eb4ad896d43f88.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/46653302130.pdf
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/kekasezovisokigelojezajer.pdf
    • https://cdn.shopify.com/s/files/1/0431/0535/3889/files/pubuvepopiwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5282/5767/files/93903018232.pdf
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/29918298600.pdf
    • https://cdn.shopify.com/s/files/1/0437/0091/2283/files/columbus_clippers_schedule_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/4413/3281/files/21234209553.pdf
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/73294519970.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/rironanenapufubad.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/8340214939.pdf
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/96440828638.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_008_off0001e902.bin
0a8b76d7cb4930b09bee0a61d0cada44c7f42ff732e348008098179df8cabb37		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1E902 22200 bytes
font_00_sfnt_off0001a4bc.bin
b9e0694739c601a09c45d7177c0de7aecda9a7c87d44e09e6f8d828bb17ef2fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A4BC 5408 bytes
font_01_sfnt_off0001b727.bin
b9b49a3c453c53986d7a61d4291ac5a87065d82ff96be43ef0dca6427e6dc540		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B727 3772 bytes
font_02_sfnt_off0001c2cb.bin
d3ef08dc79292ba5f4caa0937b3d21ed233eb1dc94acd9ffcaf42b7d6a771647		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C2CB 11884 bytes

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