MALICIOUS — 76c064a383142ddbf01e1d23878c1ab5b1bbeaf6657ef34b132177a1c5eddee8

MALICIOUS — 76c064a383142ddbf01e1d23878c1ab5b1bbeaf6657ef34b132177a1c5eddee8 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (94/100), attributed to the Ausiv family. 7 of 52 detection engines flagged it.

Identification

• SHA-256: 76c064a383142ddbf01e1d23878c1ab5b1bbeaf6657ef34b132177a1c5eddee8
• SHA-1: 5eb1d468bdd2e5e110f409c446b1f23e9ac8f1b4
• MD5: bcf3be3faa26cd4e1a54dc7ca8fd7335
• imphash: b10d16eedb1085ef7262dfc4ab03be6f
• ssdeep: 6144:KEv17PMFhNGpWvR4I2dmqmnPF4j/JhW8hFhNGpWU:K8MFhNGpWvamqmnPF4j/vW8hFhNGpWU
• TLSH: T14046C8EE425D5B11C73ACA24661596FE80D8B0EA42B5B29D0E1707720583037FC7BDEA
• Submitted as: 76c064a383142ddbf01e1d23878c1ab5b1bbeaf6657ef34b132177a1c5eddee8
• File type: pe · Size: 295779 bytes
• Verdict: malicious (94/100) · Family: Ausiv

Detections (7 of 52 engines)

• MalwareAnalyser heuristics (entropy/packer): UPX
• ClamAV (daily): Win.Dropper.Ausiv-9875564-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Detect It Easy (packer/type): DIE:UPX
• Microsoft Defender: Virus:Win32/Sivis.A
• Emsisoft (Emergency Kit): Win32.Sivis.A
• Kaspersky (KVRT): Virus.Win32.Agent.es

Why this verdict

The malicious score of 94/100 is the fusion of 5 weighted signals:

• ClamAV (daily) flagged Win.Dropper.Ausiv-9875564-0 (rule Win.Dropper.Ausiv-9875564-0) - engine signal, weight 0.90, confidence 0.95
• 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/ - 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://schemas.openxmlformats.org/drawingml/2006/main
• http://creativecommons.org/publicdomain/zero/1.0/
• http://www.microsoft.com/DRM/XrML2/SL/v2
• http://www.microsoft.com/DRM/XrML2/TM/v2
• http://www.w3.org/2000/09/xmldsig#
• http://www.microsoft.com/xrml/lwc14n
• http://www.w3.org/2000/09/xmldsig#rsa-sha1
• http://www.w3.org/2000/09/xmldsig#sha1
• http://licensing.microsoft.com
• http://crl.verisign.com/tss-ca.crl0
• http://crl.microsoft.com/pki/crl/products/CodeSignPCA2.crl0O
• http://office.microsoft.com

Embedded domains

• schemas.openxmlformats.org
• creativecommons.org
• www.microsoft.com
• www.w3.org
• licensing.microsoft.com
• crl.verisign.com
• crl.microsoft.com
• office.microsoft.com

File paths

• X:\windows\system32\sysreset.exe
• C:\Windows.old\Windows\containers\serviced\WindowsDefenderApplicationGuard.wim]
• C:\Windows\containers\serviced\WindowsDefenderApplicationGuard.wim]
• C:\Windows.old\Windows\WinSxS\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.17134.1120_none_c3e
• C:\Windows.old\Windows\WinSxS\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.17134.1_none_eedfed
• X:\SysResetTrace-Tel-Merge.etl,
• C:\$WINDOWS.~BT\Sources\Panther\SysResetTrace-Tel-Merge.etl)
• t:\setupexe\x86\ship\1033.pre\osetupui.pdb

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report