General
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Target
file.exe
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Size
261KB
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Sample
231221-ygyhfsbfhl
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MD5
d0543990e88af04f28324659e85c8d21
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SHA1
af9af9c63959b3bcf95e85af80a5a6857d558f03
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SHA256
f97af272feea9ccbc92c81139db9254c5b3f8219e48a1e5242dee04dc3b57d4d
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SHA512
c164d402e6e8cf1bffe5c9fdf2b0624010773445e3f6618790179f70ba6d6cad36c1dddc7bf872d739596987d6ebca39da88e25dab8c4de06a5f92aadf2256d9
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SSDEEP
3072:2WbonLAISaHCUORahXgXyqyKPPJSzKsXmKutteaeRNs/dNYV2Bk:HbYLAxaHCUO8hwb9o9XmtQsFNs
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20231215-en
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.loqw
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offline_id
NrqpaQRhQqq5l2tBPp1QS34I3ME2IKsAlZ0A9pt1
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payload_url
http://brusuax.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
redline
@ytlogsbot
185.172.128.33:38294
Extracted
redline
1222-55000
193.233.132.72:36295
Targets
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Target
file.exe
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Size
261KB
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MD5
d0543990e88af04f28324659e85c8d21
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SHA1
af9af9c63959b3bcf95e85af80a5a6857d558f03
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SHA256
f97af272feea9ccbc92c81139db9254c5b3f8219e48a1e5242dee04dc3b57d4d
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SHA512
c164d402e6e8cf1bffe5c9fdf2b0624010773445e3f6618790179f70ba6d6cad36c1dddc7bf872d739596987d6ebca39da88e25dab8c4de06a5f92aadf2256d9
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SSDEEP
3072:2WbonLAISaHCUORahXgXyqyKPPJSzKsXmKutteaeRNs/dNYV2Bk:HbYLAxaHCUO8hwb9o9XmtQsFNs
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detect ZGRat V1
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Detected Djvu ransomware
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Downloads MZ/PE file
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Accesses Microsoft Outlook profiles
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Virtualization/Sandbox Evasion
1File and Directory Permissions Modification
1Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1