Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c528d2b5c0c75a1…

MALICIOUS

PDF

40.7 KB Created: 2020-08-15 00:48:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bec55876789403e06e729933f05096e4 SHA-1: 6c822b9d0300d7143957f49dee07a24ca6006919 SHA-256: 9c528d2b5c0c75a1e9260a0b7ae50eb71e10836f7ff1ff9060a76da40abfad59
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wb?keyword=multi%20product%20process%20chart%20pdf', is designed to lure users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=multi%20product%20process%20chart%20pdf
    • http://debowugif.sacredgeometryalchemy.com/uploads/1/3/1/6/131606349/gabagulerof.pdf
    • http://files.selffound.net/uploads/1/3/2/3/132302711/sodikowalob_rerakovebogepuf_wulofelajeg.pdf
    • http://files.hataservices.com/uploads/1/3/0/8/130874111/giwumufunila-bewola-tusufopunekosev-pigob.pdf
    • http://files.markkeohanephotography.com/uploads/1/3/1/8/131856353/4a73400e2712d.pdf
    • https://cdn.shopify.com/s/files/1/0440/5982/0182/files/soundboard_for_vrchat.pdf
    • https://cdn.shopify.com/s/files/1/0433/8306/2695/files/41851139667.pdf
    • https://cdn.shopify.com/s/files/1/0438/2746/2301/files/wekip.pdf
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/faramejadogojejudozoleb.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6514/files/lumita.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/addition_worksheets_for_grade_1.pdf
    • https://cdn.shopify.com/s/files/1/0437/1080/8213/files/52447985960.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/wukomepoxufudizipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/powelidubiwemivasogozev.pdf
    • https://cdn.shopify.com/s/files/1/0432/5156/4707/files/ad_d_2nd_edition.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_off0000616d.bin
3ce6d0a2468b36f85bf63aaa0d4cd1ed9ca72e656340169de5cf2f2803b7752e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x616D 5248 bytes
font_01_sfnt_off00007343.bin
8ce603e06ea5eeabd04b093be4e70d93be7e7bda244b74b519c437bc3fdd5ca5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7343 10208 bytes

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