Analysis
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max time kernel
161s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 18:59
Static task
static1
Behavioral task
behavioral1
Sample
8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe
Resource
win10v2004-20240226-en
General
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Target
8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe
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Size
2.0MB
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MD5
51efb457d5b65efe172d970ffb215b10
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SHA1
4a163e2df2d15ea0826fc647cf77cbabd8cffb4a
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SHA256
8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee
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SHA512
a110651705f54444fcc06ad0dd2f5dd685e8d07633714000feeb4a86afedbd13731d2f599267e6f02f1435814a1777b2c3ce4dcd6d6419d5d6ee8885e28a992b
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SSDEEP
49152:OePpQEBJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEBtIuoITsdZ
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 11 IoCs
Processes:
resource yara_rule behavioral1/memory/3628-2-0x0000000004130000-0x0000000004279000-memory.dmp family_vidar_v7 behavioral1/memory/4532-5-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-11-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-12-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-21-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-22-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-23-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-24-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-41-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4532-42-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katA68C.tmppid process 4532 katA68C.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:
8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exedescription pid process target process PID 3628 set thread context of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katA68C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katA68C.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katA68C.tmppid process 4532 katA68C.tmp 4532 katA68C.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exedescription pid process target process PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp PID 3628 wrote to memory of 4532 3628 8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe katA68C.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe"C:\Users\Admin\AppData\Local\Temp\8f4fe93bee25112fec853c206252cf58ce51c2b8499ae387363fa85c0bbccdee.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3628 -
C:\Users\Admin\AppData\Local\Temp\katA68C.tmpC:\Users\Admin\AppData\Local\Temp\katA68C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4532
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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=2268 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:81⤵PID:216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\katA68C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3628-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/3628-1-0x00000000025C0000-0x00000000025C1000-memory.dmpFilesize
4KB
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memory/3628-2-0x0000000004130000-0x0000000004279000-memory.dmpFilesize
1.3MB
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memory/3628-0-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/4532-12-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-11-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-5-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-21-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-22-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-23-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-24-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-26-0x000000001DC00000-0x000000001DE5F000-memory.dmpFilesize
2.4MB
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memory/4532-41-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4532-42-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB