Analysis
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max time kernel
145s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 06:19
Static task
static1
Behavioral task
behavioral1
Sample
33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe
Resource
win7-20240221-en
General
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Target
33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe
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Size
1.8MB
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MD5
a5f35c15db22b59af71ef7d874db0242
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SHA1
80d2898cdd8d21b342a257361696c9526f437865
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SHA256
33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354
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SHA512
a69587f1e7be090d6137b756e56d4f0dadf7a7ea82cda59a072a318644bb9a9c619928250e99d5d6b64b9161d0581d3c533a5415fda57ddfeafdb05a70e292fa
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SSDEEP
24576:FBfuZfeq6sNO6hTdtTF+TxMoxQH1Tj4wtjYZH1DmoYYzi3WH45yv+OueSJhm9e:F7qFfJtTF+TxMoxc1TU+j+dAzGwlrh
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/4436-1-0x0000000004110000-0x0000000004259000-memory.dmp family_vidar_v7 behavioral2/memory/1208-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1208-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1208-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1208-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1208-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1208-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/1208-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katC8BE.tmppid process 1208 katC8BE.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:
33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exedescription pid process target process PID 4436 set thread context of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katC8BE.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katC8BE.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katC8BE.tmppid process 1208 katC8BE.tmp 1208 katC8BE.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exedescription pid process target process PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp PID 4436 wrote to memory of 1208 4436 33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe katC8BE.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe"C:\Users\Admin\AppData\Local\Temp\33e056fb72b509ee2320b65dc39e8fcd3c0446855df5675cc899ed6be311e354.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4436 -
C:\Users\Admin\AppData\Local\Temp\katC8BE.tmpC:\Users\Admin\AppData\Local\Temp\katC8BE.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1208
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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 --mojo-platform-channel-handle=4036 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:81⤵PID:1444
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\katC8BE.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1208-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1208-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1208-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1208-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1208-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1208-17-0x000000001DC30000-0x000000001DE8F000-memory.dmpFilesize
2.4MB
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memory/1208-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1208-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4436-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/4436-1-0x0000000004110000-0x0000000004259000-memory.dmpFilesize
1.3MB
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memory/4436-9-0x0000000000400000-0x00000000005D1000-memory.dmpFilesize
1.8MB