Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b3bff951db18096…

MALICIOUS

PDF

20.6 KB Created: 2020-11-04 04:41:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce2893e6f321f1b3426d2127af30a2b7 SHA-1: eaea9a370be8e7b600ce204b3ee81229d567ad6b SHA-256: 4b3bff951db1809663040c806934fe14dc227a9cca247cf686f7202a685bfe9b
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, presenting itself as content related to 'coin master hacks' but containing a clickable link that redirects to malicious infrastructure. The document body is heavily obfuscated, but the embedded URL and the heuristic firings strongly indicate a phishing or scam attempt. The primary URL, https://gettraff.ru/aws?keyword=coin+master+hacks+that+work, is identified as a malicious redirector, likely leading to a further stage of the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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.
  • 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.
  • 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 20 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://gettraff.ru/aws?keyword=coin+master+hacks+that+work
    • https://melegejisud.weebly.com/uploads/1/3/1/3/131379421/8424263.pdf
    • https://jomunibudax.weebly.com/uploads/1/3/4/3/134342604/e6eb49b.pdf
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/ruvavabasipusak.pdf
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/kesirawa.pdf
    • https://zuvagenujak.weebly.com/uploads/1/3/4/4/134454716/benapeguwonif-mulabafazerezux-malij-teninuwewi.pdf
    • https://lowizozexide.weebly.com/uploads/1/3/0/7/130776176/pudif-ketiri-zemegufawiregip.pdf
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/c896e.pdf
    • https://pinuzika.weebly.com/uploads/1/3/4/6/134640149/5224953.pdf
    • https://naxesitigas.weebly.com/uploads/1/3/0/7/130740165/mobifa.pdf
    • https://xuxewisi.weebly.com/uploads/1/3/4/2/134235501/vipimilibeluvovito.pdf
    • https://mizunawakore.weebly.com/uploads/1/3/1/4/131406356/jolemarer-zazujilabu.pdf
    • https://xoxefalumigak.weebly.com/uploads/1/3/4/5/134527234/motatolup.pdf
    • https://s3.amazonaws.com/jonora/skyrim_skimpy_light_armor_mods.pdf
    • https://cdn.shopify.com/s/files/1/0428/2384/3996/files/98751739744.pdf
    • https://cdn.shopify.com/s/files/1/0432/7224/1310/files/english_reading_practice_test.pdf

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