Analysis
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max time kernel
133s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 17:19
Static task
static1
Behavioral task
behavioral1
Sample
1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe
Resource
win10v2004-20240508-en
General
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Target
1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe
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Size
2.0MB
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MD5
1a7f2f882d66c1b6376d2a69b9a8855a
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SHA1
c7037c4235f08b1d752f58fcd497d4b98de02b5a
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SHA256
1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840
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SHA512
4e2060cf6869c8f7c752ed60d79836eb3ce654f6bd3d96d421094dea4f1e4f8635ac88342ca4c3dcc56330355fe326cdfbe9f357135d9e8c5d2788d56261d157
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SSDEEP
49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ
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/4144-2-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral1/memory/1724-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1724-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1724-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1724-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1724-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1724-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1724-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katF770.tmppid process 1724 katF770.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:
1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exedescription pid process target process PID 4144 set thread context of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katF770.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katF770.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katF770.tmppid process 1724 katF770.tmp 1724 katF770.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exedescription pid process target process PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp PID 4144 wrote to memory of 1724 4144 1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe katF770.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe"C:\Users\Admin\AppData\Local\Temp\1ab0a2ceceb02508e978127af5fd63c432a19a6a286b55b7ea07ee3f1e28f840.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\katF770.tmpC:\Users\Admin\AppData\Local\Temp\katF770.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4296,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=3756 /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\katF770.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1724-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1724-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1724-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1724-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1724-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1724-20-0x000000001B800000-0x000000001BA5F000-memory.dmpFilesize
2.4MB
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memory/1724-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1724-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4144-0-0x00000000006F0000-0x00000000006F1000-memory.dmpFilesize
4KB
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memory/4144-2-0x0000000004070000-0x00000000041B9000-memory.dmpFilesize
1.3MB
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memory/4144-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB