Analysis Overview
SHA256
b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b
Threat Level: Known bad
The file b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b was found to be: Known bad.
Malicious Activity Summary
Detect Vidar Stealer
Vidar
Stealc
Downloads MZ/PE file
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Executes dropped EXE
Checks computer location settings
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Checks processor information in registry
Delays execution with timeout.exe
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-14 01:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-14 01:21
Reported
2024-06-14 01:24
Platform
win10v2004-20240611-en
Max time kernel
133s
Max time network
127s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Stealc
Vidar
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3564 set thread context of 3844 | N/A | C:\Users\Admin\AppData\Local\Temp\b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b.exe | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katED4E.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b.exe
"C:\Users\Admin\AppData\Local\Temp\b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b.exe"
C:\Users\Admin\AppData\Local\Temp\katED4E.tmp
C:\Users\Admin\AppData\Local\Temp\katED4E.tmp
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 --field-trial-handle=1300,i,17325488789339133686,9539570259395798500,262144 --variations-seed-version --mojo-platform-channel-handle=4436 /prefetch:8
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 --field-trial-handle=2980,i,17325488789339133686,9539570259395798500,262144 --variations-seed-version --mojo-platform-channel-handle=1296 /prefetch:3
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katED4E.tmp" & rd /s /q "C:\ProgramData\BKJEHCAKFBGD" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| US | 8.8.8.8:53 | 89.43.201.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 244.235.13.49.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/3564-0-0x0000000002480000-0x0000000002481000-memory.dmp
memory/3564-1-0x0000000002AD0000-0x0000000002BE0000-memory.dmp
memory/3844-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-9-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3564-10-0x0000000000400000-0x0000000000629000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\katED4E.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/3844-11-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-12-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-14-0x0000000023B40000-0x0000000023D9F000-memory.dmp
memory/3844-22-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-23-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-31-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-32-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-48-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
| MD5 | d751713988987e9331980363e24189ce |
| SHA1 | 97d170e1550eee4afc0af065b78cda302a97674c |
| SHA256 | 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945 |
| SHA512 | b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af |
memory/3844-55-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-66-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-67-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3844-70-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
| MD5 | 20d4b8fa017a12a108c87f540836e250 |
| SHA1 | 1ac617fac131262b6d3ce1f52f5907e31d5f6f00 |
| SHA256 | 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d |
| SHA512 | 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-14 01:21
Reported
2024-06-14 01:24
Platform
win11-20240611-en
Max time kernel
146s
Max time network
151s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Stealc
Vidar
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3308 set thread context of 4144 | N/A | C:\Users\Admin\AppData\Local\Temp\b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b.exe | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b.exe
"C:\Users\Admin\AppData\Local\Temp\b41925f0234f077f3ab93c2586ceae9076d708c670d681838d60099969bbf46b.exe"
C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp
C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp" & rd /s /q "C:\ProgramData\BKKKFCFIIJJK" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| US | 8.8.8.8:53 | 99.167.154.149.in-addr.arpa | udp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | tcp | |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
| DE | 49.13.235.244:5432 | 49.13.235.244 | tcp |
Files
memory/3308-0-0x00000000024A0000-0x00000000024A1000-memory.dmp
memory/3308-2-0x0000000002BD0000-0x0000000002CE0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat7B2B.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/4144-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3308-9-0x0000000000400000-0x0000000000629000-memory.dmp
memory/4144-10-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-22-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-23-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-25-0x0000000026050000-0x00000000262AF000-memory.dmp
memory/4144-33-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-34-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-42-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-43-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-59-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-60-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-74-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-75-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4144-78-0x0000000000400000-0x0000000000648000-memory.dmp