General
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Target
toolspub1.exe
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Size
204KB
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Sample
240115-f8vlrsbca9
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MD5
1312fc2e043e2347c3de8a9a6907c430
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SHA1
075a04bc32a70aeedb23ee83842dd32fe691ba58
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SHA256
4b3f4607405154b8182848324699427778605dd52afabaff7a0fd542a4bc9212
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SHA512
108be06b849ded957240b52b006961f4bb01a9684ac0f2a81d70008f9b3a6cf1c2ee657cfe5ea6f566772735dabbc1c505342f37df6985296ddcebf3e917694f
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SSDEEP
3072:EkI0nM3Jq/AmlEkJiAj1K/2stqLiP+k9IYBn7Q97fsRLx8yM+cmk:EkICXlETZ2kx7QoxJcL
Static task
static1
Behavioral task
behavioral1
Sample
toolspub1.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
toolspub1.exe
Resource
win10v2004-20231215-en
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Targets
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Target
toolspub1.exe
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Size
204KB
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MD5
1312fc2e043e2347c3de8a9a6907c430
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SHA1
075a04bc32a70aeedb23ee83842dd32fe691ba58
-
SHA256
4b3f4607405154b8182848324699427778605dd52afabaff7a0fd542a4bc9212
-
SHA512
108be06b849ded957240b52b006961f4bb01a9684ac0f2a81d70008f9b3a6cf1c2ee657cfe5ea6f566772735dabbc1c505342f37df6985296ddcebf3e917694f
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SSDEEP
3072:EkI0nM3Jq/AmlEkJiAj1K/2stqLiP+k9IYBn7Q97fsRLx8yM+cmk:EkICXlETZ2kx7QoxJcL
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Modifies firewall policy service
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Modifies security service
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Disables taskbar notifications via registry modification
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Disables use of System Restore points
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Looks for VMWare services registry key.
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Sets file execution options in registry
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Sets service image path in registry
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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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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Checks for any installed AV software in registry
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Drops desktop.ini file(s)
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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1