MALICIOUS — 4cf28d_2b64f2157be34c8398ad0d53a74b1ba8.pdf

MALICIOUS — 4cf28d_2b64f2157be34c8398ad0d53a74b1ba8.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (88/100). 3 of 53 detection engines flagged it.

Identification

• SHA-256: ad7eb2045e974e2678b8e0a28095936a7cf8273d91dcf57061fb601ee9518684
• SHA-1: d557cf7696915064d5d99255f9f29465c0ed0629
• MD5: 0a30db25e81fb83088664570a7a6d5d6
• ssdeep: 768:CgGzpD84xawyAdONiUK5OB/z+ZkYjV4fFiGnpde7w0x8:fGFQGa/iuCkWVqR/kw0x8
• TLSH: T1B5308DF350E7EC8C7A87AB03ADE214656546C78E6132D36045DC7B7CC8B86ACBE51821
• Submitted as: 4cf28d_2b64f2157be34c8398ad0d53a74b1ba8.pdf
• File type: pdf · Size: 38855 bytes
• Verdict: malicious (88/100)

Detections (3 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Trojan.Script.Generic

Why this verdict

The malicious score of 88/100 is the fusion of 6 weighted signals:

• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Script.Generic (rule HEUR:Trojan.Script.Generic) - engine signal, weight 0.55, confidence 0.85
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: https://ttraff.ru/wix?keyword=regular+preterite+practice+worksheet, https://0f909246-243b-44ac-ade2-29620eb53bf2.filesusr.com/ugd/0d018b_e2d009e28f85463d859a5adb17dc986d.pdf?index=true, https://4716f140-12b7-47dc-9c9b-d3d9367e3d43.filesusr.com/ugd/43d598_0d62d63b7cf8468a8970fc19d2a46a45.pdf?index=true - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• https://ttraff.ru/wix?keyword=regular+preterite+practice+worksheet
• https://0f909246-243b-44ac-ade2-29620eb53bf2.filesusr.com/ugd/0d018b_e2d009e28f85463d859a5adb17dc986d.pdf?index=true
• https://4716f140-12b7-47dc-9c9b-d3d9367e3d43.filesusr.com/ugd/43d598_0d62d63b7cf8468a8970fc19d2a46a45.pdf?index=true
• https://b5f97dd3-7080-4770-9556-eb480d532d55.filesusr.com/ugd/baef12_4a5de5b86768473ca01c2c393df727cc.pdf?index=true
• https://28e3227d-8d06-428b-87e8-b7ec3ebdd21e.filesusr.com/ugd/277b62_3816cc83cbd54a88857a8818fadfc40b.pdf?index=true
• http://files.randyspondservices.com/uploads/1/3/0/9/130969987/cb254fc2b3763ee.pdf
• http://kuzimekoz.casacose.com/uploads/1/3/1/4/131407469/vubuvudixozisan.pdf
• http://files.blockandboardpdx.com/uploads/1/3/2/6/132683137/c4cc6b.pdf
• http://goxiped.ccapblantyresynod.org/uploads/1/3/1/8/131856380/157db319b3d7e4.pdf
• http://fosukilu.randallbmusic.com/uploads/1/3/0/9/130969858/popifuke_pamemijemazidep.pdf
• http://nopujazi.charlottebrady.com/uploads/1/3/1/6/131637503/3575407.pdf
• http://files.bayswaterpwds.com/uploads/1/3/0/8/130814056/gopezalade.pdf
• http://files.soaringeaglefitness.com/uploads/1/3/1/1/131163867/jenagiroxelet.pdf
• http://files.ymymbrand.com/uploads/1/3/2/6/132695782/digaxamubug.pdf
• http://soniwexo.samanthanathey.com/uploads/1/3/0/8/130814328/nofuzizuzoxurarupidi.pdf
• https://cdn.shopify.com/s/files/1/0432/6014/9910/files/logigojitezotogirimesi.pdf
• https://cdn.shopify.com/s/files/1/0433/6759/6184/files/cours_grammaire_francais_facile.pdf
• https://cdn.shopify.com/s/files/1/0453/8466/3208/files/34011263295.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/

Embedded domains

• ttraff.ru
• 0f909246-243b-44ac-ade2-29620eb53bf2.filesusr.com
• 4716f140-12b7-47dc-9c9b-d3d9367e3d43.filesusr.com
• b5f97dd3-7080-4770-9556-eb480d532d55.filesusr.com
• 28e3227d-8d06-428b-87e8-b7ec3ebdd21e.filesusr.com
• files.randyspondservices.com
• kuzimekoz.casacose.com
• files.blockandboardpdx.com
• goxiped.ccapblantyresynod.org
• fosukilu.randallbmusic.com
• nopujazi.charlottebrady.com
• files.bayswaterpwds.com
• files.soaringeaglefitness.com
• files.ymymbrand.com
• soniwexo.samanthanathey.com
• cdn.shopify.com
• www.w3.org
• purl.org
• ns.adobe.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report