MALICIOUS — 42b9e05cbd0a54b56493d7b5ca36eb54851cfc9dabad4d470e0d94e00d204c55

MALICIOUS — 42b9e05cbd0a54b56493d7b5ca36eb54851cfc9dabad4d470e0d94e00d204c55 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the Sivis family. 7 of 52 detection engines flagged it.

Identification

• SHA-256: 42b9e05cbd0a54b56493d7b5ca36eb54851cfc9dabad4d470e0d94e00d204c55
• SHA-1: a36c1e8fd94e3c370135e521e2c0052a75569480
• MD5: 48849fb78853a5cfcbfb5a0390054fc3
• imphash: b10d16eedb1085ef7262dfc4ab03be6f
• ssdeep: 1536:KEq3GcO+0NC3/rM8FhNGpWWgiXFhNGpWvib3hht:KEql0NC3/rM8FhNGpWFiXFhNGpWviHt
• TLSH: T1A6346DE82345631FC97B99FB08B8CE6E5057B1D724A144B183C7533768BB8276A31292
• Submitted as: 42b9e05cbd0a54b56493d7b5ca36eb54851cfc9dabad4d470e0d94e00d204c55
• File type: pe · Size: 55333 bytes
• Verdict: malicious (97/100) · Family: Sivis

Detections (7 of 52 engines)

• MalwareAnalyser heuristics (entropy/packer): UPX
• ClamAV (daily): Win.Malware.Sivis-9908038-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Detect It Easy (packer/type): DIE:UPX
• Kaspersky (KVRT): Virus.Win32.Agent.es
• Microsoft Defender: Virus:Win32/Sivis.A
• Emsisoft (Emergency Kit): Win32.Sivis.A

Why this verdict

The malicious score of 97/100 is the fusion of 6 weighted signals:

• ClamAV (daily) flagged Win.Malware.Sivis-9908038-0 (rule Win.Malware.Sivis-9908038-0) - engine signal, weight 0.90, confidence 0.95
• Kaspersky (KVRT) flagged Virus.Win32.Agent.es (rule Virus.Win32.Agent.es) - engine signal, weight 0.55, confidence 0.85
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70
• Detect It Easy (packer/type) flagged DIE:UPX (rule DIE:UPX) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: http://creativecommons.org/publicdomain/zero/1.0/, https://d.symcb.com/rpa0, http://s.symcb.com/universal-root.crl0 - static signal, weight 0.35, confidence 0.60
• Packing/obfuscation: UPX, high-entropy-sections:UPX1 - 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

• http://go.microsoft.com/fwlink/?LinkId=129791
• http://www.w3.org/1999/02/22-rdf-syntax-ns#
• http://ns.adobe.com/xap/1.0/mm/
• http://ns.adobe.com/xap/1.0/sType/ResourceRef#
• http://ns.adobe.com/xap/1.0/
• http://creativecommons.org/publicdomain/zero/1.0/
• https://www.digicert.com/CPS0
• http://cacerts.digicert.com/DigiCertEVCodeSigningCA-SHA2.crt0
• http://cacerts.digicert.com/DigiCertHighAssuranceEVRootCA.crt0
• http://crl3.digicert.com/DigiCertHighAssuranceEVRootCA.crl0@
• http://crl4.digicert.com/DigiCertHighAssuranceEVRootCA.crl0
• http://www.digicert.com/ssl-cps-repository.htm0
• https://d.symcb.com/rpa0
• http://s.symcb.com/universal-root.crl0
• https://d.symcb.com/rpa0@
• http://ts-crl.ws.symantec.com/sha256-tss-ca.crl0
• http://ts-aia.ws.symantec.com/sha256-tss-ca.cer0

Embedded domains

• fifi.org
• go.microsoft.com
• www.w3.org
• ns.adobe.com
• creativecommons.org
• geocities.com
• crl3.digicert.com
• crl4.digicert.com
• www.digicert.com
• cacerts.digicert.com
• d.symcb.com
• s.symcb.com
• ts-crl.ws.symantec.com
• ts-aia.ws.symantec.com

File paths

• C:\Windows.old
• C:\.
• C:\Windows.old\Windows\System32\Config\Software.
• C:\\Windows\System32\Config\Software.

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report