Analysis
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max time kernel
94s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 10:51
Static task
static1
Behavioral task
behavioral1
Sample
9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe
Resource
win10v2004-20240426-en
General
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Target
9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe
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Size
2.6MB
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MD5
c3a2d04b9541e79e07c3f21a140109bb
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SHA1
cd260020a4b6abc7a1df0889ea2d57b14fbf4032
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SHA256
9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd
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SHA512
33e33e2a3ce5c5a34fe96f42b7a100c4e5afb5094fee42e24dd41500d4f7bf3fd3fcdf08d6357d5187c49bd8d635657499005b9924199e93ecd0d974a2e7a8db
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SSDEEP
49152:XQzIzMiqCNw3JtTF+TxMoxc1TU+j+dAzGwlrh:XY598KtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/2972-1-0x0000000004160000-0x00000000042A9000-memory.dmp family_vidar_v7 behavioral1/memory/3048-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3048-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3048-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3048-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3048-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3048-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3048-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3112.tmppid process 3048 kat3112.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exedescription pid process target process PID 2972 set thread context of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3112.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3112.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3112.tmppid process 3048 kat3112.tmp 3048 kat3112.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exedescription pid process target process PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp PID 2972 wrote to memory of 3048 2972 9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe kat3112.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe"C:\Users\Admin\AppData\Local\Temp\9bf80be029877c60ba78b87b17458e8a48ae4b0b95af8d8fe4a163fd79781dfd.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Users\Admin\AppData\Local\Temp\kat3112.tmpC:\Users\Admin\AppData\Local\Temp\kat3112.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3048
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3112.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2972-0-0x0000000000950000-0x0000000000951000-memory.dmpFilesize
4KB
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memory/2972-1-0x0000000004160000-0x00000000042A9000-memory.dmpFilesize
1.3MB
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memory/2972-9-0x0000000000400000-0x000000000069E000-memory.dmpFilesize
2.6MB
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memory/3048-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3048-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3048-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3048-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3048-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3048-20-0x000000001DBF0000-0x000000001DE4F000-memory.dmpFilesize
2.4MB
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memory/3048-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3048-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB