Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2e928db605d5de…

MALICIOUS

PDF

72.6 KB Created: 2020-12-21 16:30:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1d5bdb993cdfc24b653750e67eeed77 SHA-1: 15e5b86502ecc05c6ee2ad7340b91adeb64e94b7 SHA-256: cc2e928db605d5deeba7ae5d652f729bfd667ab037a16dc8e8a21cff5d17a42d
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The embedded URL 'https://traffmen.ru/strik?utm_term=pokemon+home+switch+cost' is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. The ML classifier and ClamAV detection further corroborate the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://traffmen.ru/strik?utm_term=pokemon+home+switch+cost
    • https://static.s123-cdn-static.com/uploads/4415331/normal_5fc9cbfc0d760.pdf
    • https://cdn-cms.f-static.net/uploads/4420014/normal_5fd7320d59103.pdf
    • https://cdn-cms.f-static.net/uploads/4387712/normal_5fc27d955e643.pdf
    • https://cdn-cms.f-static.net/uploads/4457302/normal_5fac1c6d35d58.pdf
    • https://cdn-cms.f-static.net/uploads/4426408/normal_5fd89254eefd0.pdf
    • https://cdn-cms.f-static.net/uploads/4408343/normal_5fae502d3a58a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/5ab887af-2328-4627-ae52-fad663c0b8f6/rerakota.pdf
    • https://s3.amazonaws.com/xijalovelokolep/9206393168.pdf
    • https://s3.amazonaws.com/bupijila/luwiguz.pdf
    • https://uploads.strikinglycdn.com/files/0a47ddc4-1f78-4cce-93f0-b6cbb77b430d/glock_26_laser_guide_rod.pdf
    • https://uploads.strikinglycdn.com/files/ba7c5d58-3177-450a-a761-641952943122/1731927803.pdf
    • https://uploads.strikinglycdn.com/files/69e7cb0c-cf32-41b8-b4e2-485c5b4ad85f/mumusutatus.pdf
    • https://uploads.strikinglycdn.com/files/63c47eb2-fdbe-4c25-8901-d3ddf61a7283/37426551316.pdf
    • https://uploads.strikinglycdn.com/files/1ff21fec-0332-467b-9515-71a958409010/types_of_face_piercings_for_guys.pdf
    • https://s3.amazonaws.com/rijaliwiguvex/40779656525.pdf
    • https://uploads.strikinglycdn.com/files/dbca3b90-a5b3-45af-b7ba-ef726125978a/southeast_portland_tool_library_septl.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3a3.bin
1389e815618f94f43385e69597bd385713b1891b933a31faa76d9a9ea83150f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A3 4648 bytes
font_01_sfnt_off0000e350.bin
e1b4c9ae94b8de7047a510160f0c7d222a04afc629bf1c2ac3d1e9fd0d279b2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE350 10660 bytes
font_02_sfnt_off000107d5.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107D5 4324 bytes

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