MALICIOUS — 4fb05f_73a3ce21760144ae8cffcea9bf7e1fba.pdf

MALICIOUS — 4fb05f_73a3ce21760144ae8cffcea9bf7e1fba.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: df99389e1599a6c1371b3c8a2ffca95dec4a6a9a62858b41039f0c794a3a97f5
• SHA-1: 66992a7c1e0197b3108f10d7b69013cc39a44f00
• MD5: 1ac4ffa1b0a630816d3b8fffb74e90de
• ssdeep: 768:QgGzpDzmMLToYiGaO7T1bcXSvhxKSRL1PNlqfsuek6eBSdtYMbSfiQxXTko:9GFvbiVSvLVwFB46KSfiQBTko
• TLSH: T1FC317DF300B7ED4C7A86CB03ADEA255D9548DB8D6132EA6019D83B2CD5BC27D6F00961
• Submitted as: 4fb05f_73a3ce21760144ae8cffcea9bf7e1fba.pdf
• File type: pdf · Size: 40807 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=indefinite+pronouns+worksheet+grade+5+pdf, https://cdn.shopify.com/s/files/1/0437/7860/5210/files/benediction_august_alsina_song.pdf, https://cdn.shopify.com/s/files/1/0440/8436/3416/files/nh-_craigslist-_org_craigslist_fresno.pdf - 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=indefinite+pronouns+worksheet+grade+5+pdf
• https://cdn.shopify.com/s/files/1/0437/7860/5210/files/benediction_august_alsina_song.pdf
• https://cdn.shopify.com/s/files/1/0440/8436/3416/files/nh-_craigslist-_org_craigslist_fresno.pdf
• https://cdn.shopify.com/s/files/1/0435/0600/8216/files/12739676953.pdf
• https://cdn.shopify.com/s/files/1/0431/9130/4343/files/kafakogixovodudiseruwolel.pdf
• https://cdn.shopify.com/s/files/1/0447/8589/3542/files/learn_javascript_visually.pdf
• https://cdn.shopify.com/s/files/1/0430/7815/6449/files/fixegerejulamofedurarimo.pdf
• https://cdn.shopify.com/s/files/1/0431/2642/3701/files/live_tv_channel_app_apk.pdf
• https://cdn.shopify.com/s/files/1/0430/2084/5210/files/unity_extension_methods.pdf
• https://cdn.shopify.com/s/files/1/0432/0568/9499/files/fiwalutemavefudi.pdf
• http://dumejujid.spectrumliving.co.uk/uploads/1/3/0/7/130776485/85ef3f60e554.pdf
• http://benexuvub.rmciv.com/uploads/1/3/0/8/130813132/xitenasuwozafitudoj.pdf
• http://jubare.cougarmusic.org/uploads/1/3/0/7/130739573/237966.pdf
• https://cdn.shopify.com/s/files/1/0432/1512/6685/files/broken_arrow_imdb_parents_guide.pdf
• https://cdn.shopify.com/s/files/1/0429/8027/8426/files/i_see_fire_tab.pdf
• https://cdn.shopify.com/s/files/1/0432/2207/3506/files/kofunija.pdf
• https://cdn.shopify.com/s/files/1/0432/4638/7367/files/big_data_concepts_and_architecture.pdf
• https://cdn.shopify.com/s/files/1/0433/8103/1075/files/30580906872.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
• cdn.shopify.com
• dumejujid.spectrumliving.co.uk
• benexuvub.rmciv.com
• jubare.cougarmusic.org
• www.w3.org
• purl.org
• ns.adobe.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report