Analysis
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max time kernel
135s -
max time network
161s -
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 21:38
Static task
static1
Behavioral task
behavioral1
Sample
23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe
Resource
win10v2004-20240226-en
General
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Target
23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe
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Size
2.0MB
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MD5
48d3bfafb47510d674a11414270851cd
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SHA1
a7c3a0cae2f0335f370eefa03ec94861d709d5fe
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SHA256
23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab
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SHA512
f871b57f3c477ace85a6d795298e3b0462e0408b785c6ba8bceadd785e4151ebe3e709cae40872ec06612c6f8f04e5aa463ac08a2525f0fe17565bbcee6a4fa2
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SSDEEP
49152:s4K3x1vUqJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18qtIuoITsdZ
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 17 IoCs
Processes:
resource yara_rule behavioral1/memory/4764-1-0x00000000041C0000-0x0000000004309000-memory.dmp family_vidar_v7 behavioral1/memory/1536-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-11-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-72-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-73-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-74-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-75-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1536-81-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat7913.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation kat7913.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat7913.tmppid process 1536 kat7913.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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:
23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exedescription pid process target process PID 4764 set thread context of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7913.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7913.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2176 timeout.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
Processes:
kat7913.tmppid process 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp 1536 kat7913.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exekat7913.tmpcmd.exedescription pid process target process PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 4764 wrote to memory of 1536 4764 23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe kat7913.tmp PID 1536 wrote to memory of 3036 1536 kat7913.tmp cmd.exe PID 1536 wrote to memory of 3036 1536 kat7913.tmp cmd.exe PID 1536 wrote to memory of 3036 1536 kat7913.tmp cmd.exe PID 3036 wrote to memory of 2176 3036 cmd.exe timeout.exe PID 3036 wrote to memory of 2176 3036 cmd.exe timeout.exe PID 3036 wrote to memory of 2176 3036 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe"C:\Users\Admin\AppData\Local\Temp\23593481dc5630ec73ebe061015378716b31902c3087b4d111bec9b6bc11d6ab.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7913.tmpC:\Users\Admin\AppData\Local\Temp\kat7913.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat7913.tmp" & rd /s /q "C:\ProgramData\IJKFCFHJDBKK" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
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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=4160 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵
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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=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3124 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:31⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch DictionariesFilesize
40B
MD520d4b8fa017a12a108c87f540836e250
SHA11ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA2566028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856
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C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\a24f3aad-272a-4612-a9fd-88dc4a0220ae.tmpFilesize
2B
MD5d751713988987e9331980363e24189ce
SHA197d170e1550eee4afc0af065b78cda302a97674c
SHA2564f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af
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C:\Users\Admin\AppData\Local\Temp\kat7913.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1536-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-81-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-11-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-75-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-22-0x000000001DC60000-0x000000001DEBF000-memory.dmpFilesize
2.4MB
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memory/1536-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-72-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-73-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1536-74-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4764-0-0x00000000008E0000-0x00000000008E1000-memory.dmpFilesize
4KB
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memory/4764-1-0x00000000041C0000-0x0000000004309000-memory.dmpFilesize
1.3MB
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memory/4764-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB