MALICIOUS — ribofatog.pdf

MALICIOUS — ribofatog.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: 214b865e92cc6c2726ad60fed8ecd5a7c2ef7766c04be03ebaeaa71c64b0c7b7
• SHA-1: 511f18ed41681123f9e98a2b2cc74761ed072ba6
• MD5: f8cba7af9f2118a46fdba33cad56ceeb
• ssdeep: 768:igGzpDu/9VcBEjjsu7TklnLuNjB4j+MlgNsT9xssdNIbgUS0J2aILHXQQ:/GFCFQ6jsuHTnq+MmWT990gP06LHXQQ
• TLSH: T1A434C0F790ABDC487ED65F076DAA00569186DA8C3237935098987A3CE07C2FCEE40831
• Submitted as: ribofatog.pdf
• File type: pdf · Size: 52435 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://ggtraff.ru/strik?keyword=graphic+design+portfolio+layout+pdf, https://site-1037010.mozfiles.com/files/1037010/xukuxerigagili.pdf, https://site-1036910.mozfiles.com/files/1036910/fubus.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://ggtraff.ru/strik?keyword=graphic+design+portfolio+layout+pdf
• https://site-1037010.mozfiles.com/files/1037010/xukuxerigagili.pdf
• https://site-1036910.mozfiles.com/files/1036910/fubus.pdf
• https://site-1036689.mozfiles.com/files/1036689/puwumuvikubi.pdf
• https://site-1036652.mozfiles.com/files/1036652/tupowapajejafevox.pdf
• https://site-1036728.mozfiles.com/files/1036728/gufixif.pdf
• http://faxud.istanbulsanatlayasam.org/uploads/1/3/1/4/131454215/855119.pdf
• http://mugopelu.tetcommunity.com/uploads/1/3/0/8/130874569/sagum-nivazubufo-ledubuke-basov.pdf
• http://files.shop-hoo.com/uploads/1/3/2/7/132740239/rirufofipipi.pdf
• http://zikofevu.dlvn.org/uploads/1/3/0/7/130775166/7460511.pdf
• http://files.cristinaburgueno.com/uploads/1/3/0/7/130776887/tepemumemare_bumejuvupozeku.pdf
• http://lazurapu.sfccg.org/uploads/1/3/1/1/131164093/d94cb04d1ce8dda.pdf
• http://files.ibmseduc.com/uploads/1/3/1/3/131380094/6287509.pdf
• http://ritusigid.runninonfaithtc.org/uploads/1/3/0/7/130775358/7634734.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

• ggtraff.ru
• site-1037010.mozfiles.com
• site-1036910.mozfiles.com
• site-1036689.mozfiles.com
• site-1036652.mozfiles.com
• site-1036728.mozfiles.com
• faxud.istanbulsanatlayasam.org
• mugopelu.tetcommunity.com
• files.shop-hoo.com
• zikofevu.dlvn.org
• files.cristinaburgueno.com
• lazurapu.sfccg.org
• files.ibmseduc.com
• ritusigid.runninonfaithtc.org
• www.w3.org
• purl.org
• ns.adobe.com

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