Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb0dd26b97e7047…

MALICIOUS

PDF

40.3 KB Created: 2020-08-21 06:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bdcf09b9582215e603e31ee84ab3edcf SHA-1: a30259ae4b8d5fcab88e1ed2b228e826e0ac35e7 SHA-256: ceb0dd26b97e704725db4ff25c7e12609b42037686f7192b6081803fb5392073
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. The presence of a link farm further suggests an attempt to distribute malicious content or SEO poisoning. No scripts were extracted from this sample.

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/pify?keyword=cossacks+game+for+mac+free
    • http://files.queensboyzexplorers.com/uploads/1/3/1/3/131378816/7350eb.pdf
    • https://cdn.shopify.com/s/files/1/0438/5390/6080/files/53239179489.pdf
    • https://cdn.shopify.com/s/files/1/0434/2346/5623/files/diagnostic_laparoscopy_operative_report.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/69353785891.pdf
    • https://cdn.shopify.com/s/files/1/0434/9932/3558/files/makewanewexubopijadezol.pdf
    • https://cdn.shopify.com/s/files/1/0437/2371/8824/files/what_is_apartheid_in_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0159/3507/files/88260158229.pdf
    • https://cdn.shopify.com/s/files/1/0437/1005/4554/files/game_android_apk_mod_offline_rpg.pdf
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/giwebegukifev.pdf
    • https://cdn.shopify.com/s/files/1/0437/0061/7381/files/66466271908.pdf
    • https://cdn.shopify.com/s/files/1/0430/5692/2777/files/34541384334.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/nudigukivogabufo.pdf
    • https://cdn.shopify.com/s/files/1/0463/2615/3371/files/xililuvasosemimo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1057/files/84432049417.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_off00005fcb.bin
2c5824a617c4a0c079c9a13ac974ccccaf02864f66498f21982ce4cc9b0f1cc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCB 5136 bytes
font_01_sfnt_off00007136.bin
5da922f3ab99303be5403f9287a48334c01972d96273de701dbc07ea23186f66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7136 10284 bytes

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