Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2edb1d0a6727688…

MALICIOUS

PDF

41.4 KB Created: 2020-11-13 04:16:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 559b9a432405a1c1d414d5109364519e SHA-1: 610cbefef4bb273bc5d3fa204619345fe4b9144b SHA-256: b2edb1d0a6727688cfd303d36bcf18fc68054ff147f3c72e56e2ab92e4b74d55
232 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document is identified as malicious due to its structure and embedded links. It functions as a phishing lure, presenting an image-based interface with a clickable link designed to redirect users to malicious infrastructure. The presence of a known malicious redirector link and a large number of external PDF links further supports this assessment. No scripts were extracted, but the document's primary function appears to be facilitating a malicious redirect.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8493

Heuristics 5

  • 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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/aws?utm_term=btwin+rockrider+300+manual
    • https://sonilotosoj.weebly.com/uploads/1/3/1/3/131379329/505aa.pdf
    • https://tanaxigurav.weebly.com/uploads/1/3/4/2/134266775/4c2cb17da89382.pdf
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/5164149.pdf
    • https://zaruvuverabepu.weebly.com/uploads/1/3/4/0/134017911/1588304.pdf
    • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/fubitob.pdf
    • https://uploads.strikinglycdn.com/files/50cadf52-9e45-4465-9aa1-d326f8153fae/69319071233.pdf
    • https://s3.amazonaws.com/sojuravewi/formule_du_taux_d_amortissement_lineaire.pdf
    • https://uploads.strikinglycdn.com/files/6e862eff-0603-4041-a2f6-5b2ae129245f/17093883137.pdf
    • https://s3.amazonaws.com/baposivarabuj/free_pachislo_slot_machine_manual.pdf
    • https://uploads.strikinglycdn.com/files/6c57dc37-7816-4223-b1ca-6e6012d21703/civ_root_word.pdf
    • https://uploads.strikinglycdn.com/files/65e81b9b-028f-4ddb-bc0e-ba19d5e0acbc/setatikumijaruvajebero.pdf
    • https://uploads.strikinglycdn.com/files/50da4a9e-2c6e-4fb1-a1dc-faaec51fd511/minestrone_soup_origin.pdf
    • https://uploads.strikinglycdn.com/files/1ad51ea1-8896-42b6-807d-fec9a2b4952e/xawakedoxifo.pdf
    • https://uploads.strikinglycdn.com/files/0ed0aabf-01c2-420e-b253-c7fe3fd6303d/gokizogu.pdf

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