Analysis
-
max time kernel
141s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 06:39
Static task
static1
Behavioral task
behavioral1
Sample
46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe
Resource
win10v2004-20240226-en
General
-
Target
46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe
-
Size
2.0MB
-
MD5
e33d76dd65fc834c52cefb8c8ffb7b3e
-
SHA1
bd462de9c239bf87104c8f1390d3e8930bf944ad
-
SHA256
46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d
-
SHA512
fe7a1f843eaf95b12a4c43ff30b4e5f4e4e211ca3712fb7498992b210f94b251bb51989dccc92a46d91a7f21515dc02d71d2735e08d92e7f1798776b444c45c9
-
SSDEEP
49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
-
Detect Vidar Stealer 9 IoCs
Processes:
resource yara_rule behavioral1/memory/536-2-0x0000000004130000-0x0000000004279000-memory.dmp family_vidar_v7 behavioral1/memory/3100-5-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-11-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3100-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat1C5D.tmppid process 3100 kat1C5D.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exedescription pid process target process PID 536 set thread context of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat1C5D.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat1C5D.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat1C5D.tmppid process 3100 kat1C5D.tmp 3100 kat1C5D.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exedescription pid process target process PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp PID 536 wrote to memory of 3100 536 46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe kat1C5D.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe"C:\Users\Admin\AppData\Local\Temp\46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat1C5D.tmpC:\Users\Admin\AppData\Local\Temp\kat1C5D.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
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=4136 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat1C5D.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/536-1-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
-
memory/536-2-0x0000000004130000-0x0000000004279000-memory.dmpFilesize
1.3MB
-
memory/536-0-0x00000000024A0000-0x00000000024A1000-memory.dmpFilesize
4KB
-
memory/3100-11-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-5-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-19-0x000000001DBB0000-0x000000001DE0F000-memory.dmpFilesize
2.4MB
-
memory/3100-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3100-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB