General
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Target
file_1889e4d2acec455b841c933081b0ea2d_2024-09-19_09_35_17_388000.zip
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Size
3.0MB
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Sample
240919-lrmsgssble
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MD5
abc8af5e6ec8f2b8de2f08ef31378091
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SHA1
cf528cd63eed080ff509e17c8e0b36f234757550
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SHA256
e0168825be4779091fb1035747eac2b9f685600a7e84dfc7dc3929c3a8017b2e
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SHA512
9fe3d4969299fec9caa80b449363a7de26c884daa3908f48a9e1acb1ee1b496f2d958df071a400168b81e708e335e682f81dcb1ef903fe33ca46fdef6f96a441
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SSDEEP
98304:iMjv2fBUZaF+tIaUwJe5tGEFhJOIZxq5rJ37:iMzoUZkXaUw05NFhrZxO
Static task
static1
Behavioral task
behavioral1
Sample
entry_1_0/windows-movie-maker_ih-8Ta1.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
entry_1_0/windows-movie-maker_ih-8Ta1.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
entry_2_0/windows-movie-maker-16.4.3528.331-installer_Rl-FBg1.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
entry_2_0/windows-movie-maker-16.4.3528.331-installer_Rl-FBg1.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
entry_1_0/windows-movie-maker_ih-8Ta1.exe
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Size
2.4MB
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MD5
d8ad93ef2790aa264ab569f5ba8a67cb
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SHA1
67b01f6a855b6c5def8863b0d2ef157a44762a28
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SHA256
94375dbac8e6dfd152a3c3b9e33d1c6fc18d5f86e2b486124cc4f67dbef68ce6
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SHA512
5fdc98ed246ada2f1db0335fed19eb72b776bf7075ebd3e0c4d16cdc448e285a9e63141c487e3c96297b876313ccc7ed135689ece9223e3d0d9526169e6d0d95
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SSDEEP
49152:nBuZrEUJje0NQq5rISAGFncaWt+ugsv6fhcUiVoX:BkLxNNC7e9Wt+ugsv6fhcsX
Score6/10-
Checks for any installed AV software in registry
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Downloads MZ/PE file
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Target
entry_2_0/windows-movie-maker-16.4.3528.331-installer_Rl-FBg1.exe
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Size
1.7MB
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MD5
76974b990f52405522b0f38f43b9e973
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SHA1
2e4c67a8772b5bf86b563602b252e3957da7d923
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SHA256
90846154abe13934aded2cdeb432394148240531ebd58abf5197ae0be73e854d
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SHA512
74604af64a9bd99e632ecc97c1be8a951fe35d66ada60be57cd5c431578537044a62614817e7361948a0f5ba5a6b689b721b83eea1712c66347faaedcb4fe06d
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SSDEEP
24576:S7FUDowAyrTVE3U5F/sLuHhCLogeQo40gBxnBJ4sxtMXBCYk:SBuZrEUfRFXgznBJZ1
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Cobalt Strike reflective loader
Detects the reflective loader used by Cobalt Strike.
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Drops file in Drivers directory
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Downloads MZ/PE file
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Event Triggered Execution: Image File Execution Options Injection
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Modifies powershell logging option
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops file in System32 directory
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Defense Evasion
Modify Registry
3Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Discovery
Browser Information Discovery
1Peripheral Device Discovery
2Query Registry
8Software Discovery
1Security Software Discovery
1System Information Discovery
7System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1