Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffb94be2e383ad50…

MALICIOUS

PDF

44.7 KB Created: 2020-08-23 10:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aa9f180f89d5527509a9a414e09f3ba SHA-1: 78521ac969f4f41fd5c831b55b5ed0f66b48ba43 SHA-256: ffb94be2e383ad5096ec03c950b2e18992493f7c34b3efd0be8a6f78ee3d94a7
120 Risk Score

Malware Insights

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

The PDF contains embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes text related to 'Kaufland' and 'pdf', suggesting a lure. The primary malicious URL is ttraff.com, which is used to redirect to a potentially malicious resource. The presence of a link farm heuristic indicates an attempt to generate traffic or distribute content.

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=kaufland+let%25C3%25A1k+v+pdf
    • http://files.sanpeteseamless.com/uploads/1/3/0/7/130738748/4733625.pdf
    • http://files.onceupon-atime.com/uploads/1/3/0/9/130969166/vapeza.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/xorapelawimigegojev.pdf
    • https://cdn.shopify.com/s/files/1/0437/0527/0427/files/timeline_templates_keynote.pdf
    • https://cdn.shopify.com/s/files/1/0431/5938/8316/files/behavior_chart.pdf
    • https://cdn.shopify.com/s/files/1/0429/2342/5955/files/dazirigibuwulono.pdf
    • https://cdn.shopify.com/s/files/1/0435/8645/3663/files/kaxugavegel.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23929268289.pdf
    • https://cdn.shopify.com/s/files/1/0430/1901/0201/files/23310631255.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/sujelanarawabumopudurubid.pdf
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/tuduxax.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/61875372480.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/xixuda.pdf
    • https://cdn.shopify.com/s/files/1/0440/1473/1429/files/ice_sheet_in_antarctica.pdf
    • https://cdn.shopify.com/s/files/1/0437/2588/1498/files/xibakudesuwukunak.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_off00006e4d.bin
f77f0a6092d6423d38b39b443302968a7ff9c47a6678812278ad2a07cfd6df33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4D 5088 bytes
font_01_sfnt_off00007f30.bin
ba04ffecccabee09b586eddc19c1eb293d7caeb02e6c3453cdd6f1910281d6f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F30 11964 bytes

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