MALICIOUS — a46fbd1a76e682c6147b988e4660eabab9e2af577dc7aabb5171c873ab64f866

MALICIOUS — a46fbd1a76e682c6147b988e4660eabab9e2af577dc7aabb5171c873ab64f866 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Ulise family. 10 of 51 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: a46fbd1a76e682c6147b988e4660eabab9e2af577dc7aabb5171c873ab64f866
• SHA-1: a9dc94555cd96d5513a8b27a0284400a93f37716
• MD5: 6090c5174af28f39ac134b440fc2bb93
• imphash: 9973fdd4b86d866b3faa39fa66cf7e0a
• ssdeep: 49152:YsZGsYAI2wQ+LnUZbodvCC5gtHUujpj7AewZqZhRdhJ99zqFExqSjHJ3uTFxhrF3:dGjnU9k6FhHZhZPHbsDV7
• TLSH: T179675B6230277011E1F9EE60E865889C8063B578B0789DCE820BD48251EDBF7E5F6F56
• Submitted as: a46fbd1a76e682c6147b988e4660eabab9e2af577dc7aabb5171c873ab64f866
• File type: pe · Size: 6763889 bytes
• Verdict: malicious (99/100) · Family: Ulise

Detections (10 of 51 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• MalwareAnalyser heuristics (entropy/packer): UPX
• ClamAV (daily): Win.Ransomware.Ulise-9978047-0
• YARA: JPCERT/CC: JPCERT_Emotet
• YARA: Trellix/McAfee ATR: ATR_REvil_Sodinokibi
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Microsoft Defender: Worm:Win32/Xolxo.A
• Emsisoft (Emergency Kit): Gen:Variant.Virus.Delf.1
• Kaspersky (KVRT): P2P-Worm.Win32.Delf.aj

MITRE ATT&CK

• T1055
• T1071.001
• T1057

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 99/100 is the fusion of 11 weighted signals:

• ClamAV (daily) flagged Win.Ransomware.Ulise-9978047-0 (rule Win.Ransomware.Ulise-9978047-0) - engine signal, weight 0.90, confidence 0.95
• Process injection API combination (rule Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90
• YARA: JPCERT/CC flagged JPCERT_Emotet (rule JPCERT_Emotet) - engine signal, weight 0.35, confidence 0.70
• YARA: Trellix/McAfee ATR flagged ATR_REvil_Sodinokibi (rule ATR_REvil_Sodinokibi) - engine signal, weight 0.35, confidence 0.70
• YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule TL_Shellcode_VirtualAlloc_Exec) - engine signal, weight 0.35, confidence 0.70
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: http://www.gnu.org/software/coreutils/, http://translationproject.org/team/, http://gnu.org/licenses/gpl.html - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
• Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
• inject code into another process (rule inject code into another process) - capa signal, weight 0.12, confidence 0.60

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.microsoft.com/SMI/2005/WindowsSettings
• http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
• http://www.microsoft.com/windows0
• http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0
• https://www.digicert.com/CPS0
• http://crl3.digicert.com/sha2-assured-cs-g1.crl05
• http://crl4.digicert.com/sha2-assured-cs-g1.crl0L
• http://crl3.digicert.com/sha2-assured-ts.crl02
• http://crl4.digicert.com/sha2-assured-ts.crl0
• http://www.gnu.org/software/coreutils/
• http://translationproject.org/team/
• http://gnu.org/licenses/gpl.html
• http://www.gnu.org/gethelp/
• https://clients2.google.com/cr/report
• http://www.digicert.com/CPS0
• https://crashpad.chromium.org/
• https://crashpad.chromium.org/bug/new
• http://go.microsoft.com/fwlink/?LinkId=33171&PartnerId=258

Embedded domains

• schemas.microsoft.com
• www.microsoft.com
• crl.microsoft.com
• cacerts.digicert.com
• crl4.digicert.com
• crl3.digicert.com
• www.digicert.com
• www.gnu.org
• translationproject.org
• gnu.org
• cygwin.com
• field.cc
• enter.cc
• core.cc
• dispatcher.cc
• blink.net
• thunks.cc
• node.cc
• openssl.org
• clients2.google.com
• settings.cc
• thread.cc
• crashpad.chromium.org
• arena.cc
• common.cc

File paths

• C:\My
• C:\Windows\SoftwareDistribution\Download\467d4844b1a06f896633937df86f641f\x86_microsoft-windows-os-kernel_31bf3856ad364e35_6.1.7601.18715_none_6e38b8da126
• C:\Program
• c:\jenkins\workspace\8-2-build-windows-amd64-cygwin\jdk8u281\880\build\windows-amd64\jdk\objs\rmiregistry_objs\rmiregistry.pdb
• C:\cygwin64\bin\pr.exe
• c:\jenkins\workspace\8-2-build-windows-amd64-cygwin\jdk8u281\880\build\windows-amd64\jdk\objs\keytool_objs\keytool.pdb
• c:\jenkins\workspace\8-2-build-windows-amd64-cygwin\jdk8u281\880\build\windows-amd64\jdk\objs\servertool_objs\servertool.pdb
• R:\Sg
• C:\cygwin64\bin\comm.exe

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report