Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e528c7be189d2d9…

MALICIOUS

PDF

71.7 KB Created: 2020-11-20 19:54:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97db1bd55897027799cf3d5cfb703139 SHA-1: 58b2e89706a4f14a6e7fd33a65e9fdaf816b4b77 SHA-256: 6e528c7be189d2d9321aafc8a2bbfff7c2ccec99eb43a94367c0663db7695f18
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file contains multiple embedded links, including one pointing to known malicious redirector infrastructure. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to deceive users into believing they are involved in a lottery or prize claim, requiring a parcel delivery, which is a common advance-fee fraud tactic. The ML classifier and ClamAV detection further support its malicious nature, likely leading to the execution of a secondary payload via the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/123?utm_term=commander+in+chief+katy+evans+pl
    • https://cdn-cms.f-static.net/uploads/4446162/normal_5fb45ad5772df.pdf
    • https://pugofadunenem.weebly.com/uploads/1/3/4/7/134727284/8485958.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2f6947ee-6047-4768-aae8-17a87bce1df9/fobopimazoduxedopi.pdf
    • https://uploads.strikinglycdn.com/files/e4d345f0-f7ef-4f06-8d31-5704721bc4c4/tabopukemeta.pdf
    • https://uploads.strikinglycdn.com/files/05bc4025-6e78-475f-96ab-4309d49cd5e3/40261407724.pdf
    • https://uploads.strikinglycdn.com/files/24eacf13-2692-432c-a7f1-408d5d57e0b0/61363789124.pdf
    • https://uploads.strikinglycdn.com/files/4db44b1d-6a46-488e-8d7e-a888d5eb8ab8/53460244497.pdf
    • https://uploads.strikinglycdn.com/files/5cbee3bc-3ba2-40e2-a7cd-a29db407183d/fossil_watch_battery_size_guide.pdf
    • https://uploads.strikinglycdn.com/files/508193c5-7944-4d02-b633-66957c4d139d/sepukobopigolim.pdf
    • https://uploads.strikinglycdn.com/files/312a7eef-f1cc-4b94-9a10-d95892e21e27/mewukadiremonotodu.pdf
    • https://uploads.strikinglycdn.com/files/fd0d0253-42e7-415c-a720-a1aeb2a8c977/wiwikuzinuzami.pdf
    • https://uploads.strikinglycdn.com/files/a0c60d36-e18d-4e26-b1aa-ed60fe021527/33754691093.pdf
    • https://uploads.strikinglycdn.com/files/e16eff69-e4d5-47a1-8947-5a47bcb56e79/74348647503.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5e9.bin
2f59693858dc58468af025aee87b736bdd1b93dcc255c88b5b30ba9808742915		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E9 5528 bytes
font_01_sfnt_off0000d897.bin
664e069d2676699929aa23b0379ce726b6989fa92d520110b63465588041af83		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD897 10904 bytes
font_02_sfnt_off0000fd19.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD19 16092 bytes

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