Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c296b2e2429a9e…

MALICIOUS

PDF

32.0 KB Created: 2020-11-08 23:41:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1eaaedce0ac042fa498d783a0c856e0f SHA-1: 61b8825a5f0c31e05c5dc3de8832e27fd0af2c40 SHA-256: 00c296b2e2429a9eaa4579953352114c041e7e53c9aa8c173bcafbdc1a8a8c02
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which, https://ggtraff.ru/123?keyword=download+samsung+multiroom+pc+app, is flagged as a malicious redirector. The document body and heuristics indicate a lure to download software, likely leading to malware. The presence of multiple external PDF links suggests a link farm used for SEO manipulation to attract victims.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://ggtraff.ru/123?keyword=download+samsung+multiroom+pc+app
    • https://cdn-cms.f-static.net/uploads/4408987/normal_5f99c64d2865e.pdf
    • https://cdn-cms.f-static.net/uploads/4366395/normal_5f8b0c160ca72.pdf
    • https://cdn-cms.f-static.net/uploads/4370989/normal_5fa6161126531.pdf
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/vabiwejakoza_temakubosepevin.pdf
    • https://cdn-cms.f-static.net/uploads/4410217/normal_5f9f4113a8def.pdf
    • https://cdn-cms.f-static.net/uploads/4366044/normal_5f8716d54a1a9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c3351eab-b361-4b77-b451-ab50fe010df5/25435433787.pdf
    • https://s3.amazonaws.com/tometubufimopim/reflector_2_apk_free_download.pdf
    • https://s3.amazonaws.com/zevutebulaworel/jowazoxoxafefamapuviril.pdf
    • https://s3.amazonaws.com/vuraradaso/59891383050.pdf
    • https://sisiviweze.files.wordpress.com/2020/11/50939477702.pdf
    • https://sexonilapaxo.files.wordpress.com/2020/11/45851229289.pdf
    • https://uploads.strikinglycdn.com/files/f53a646e-27fd-40ae-8b99-fe521af99c01/dragon_ball_gt_a_hero27s_legacy_english_dub.pdf
    • https://s3.amazonaws.com/luborinizu/dragon_quest_11_guide.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000590f.bin
5e36cf5a958ab6848bd52849b1dd5f86567932add6bb761d224e8590d442576a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x590F 5484 bytes

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