Analysis Overview
SHA256
4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5
Threat Level: Known bad
The file 4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5 was found to be: Known bad.
Malicious Activity Summary
Stealc
Detect Vidar Stealer
Vidar
Downloads MZ/PE file
Reads data files stored by FTP clients
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
Checks installed software on the system
Accesses cryptocurrency files/wallets, possible credential harvesting
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-11 21:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 21:18
Reported
2024-06-11 21:20
Platform
win11-20240426-en
Max time kernel
90s
Max time network
93s
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\kat5331.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 4156 set thread context of 2756 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5.exe | C:\Users\Admin\AppData\Local\Temp\kat5331.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\kat5331.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\kat5331.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat5331.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat5331.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat5331.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5.exe
"C:\Users\Admin\AppData\Local\Temp\4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5.exe"
C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5331.tmp" & rd /s /q "C:\ProgramData\AKFCFBAAEHCF" & 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 |
| DE | 49.13.235.244:5432 | 49.13.235.244 | 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 | 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/4156-0-0x00000000022F0000-0x00000000022F1000-memory.dmp
memory/4156-2-0x0000000004030000-0x0000000004140000-memory.dmp
memory/2756-4-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat5331.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/2756-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4156-10-0x0000000000400000-0x0000000000594000-memory.dmp
memory/2756-9-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-15-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-16-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-19-0x00000000193D0000-0x000000001962F000-memory.dmp
memory/2756-33-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-34-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-50-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-51-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-62-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-63-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-64-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2756-67-0x0000000000400000-0x0000000000648000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-11 21:18
Reported
2024-06-11 21:21
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
153s
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.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 1380 set thread context of 4560 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5.exe | C:\Users\Admin\AppData\Local\Temp\katEB89.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\katEB89.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\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katEB89.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5.exe
"C:\Users\Admin\AppData\Local\Temp\4a4bb1f58d36dfc348999f8b6b6eea6fc8086bc27816600ab2fc0615293adad5.exe"
C:\Users\Admin\AppData\Local\Temp\katEB89.tmp
C:\Users\Admin\AppData\Local\Temp\katEB89.tmp
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=2676 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:3
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=1404 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katEB89.tmp" & rd /s /q "C:\ProgramData\DGCGDBGCAAEB" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 241.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| 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 |
| US | 8.8.8.8:53 | 22.249.124.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 244.235.13.49.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.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 |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.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 |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| 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 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 216.58.212.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 66.112.168.52.in-addr.arpa | udp |
Files
memory/1380-0-0x0000000000400000-0x0000000000594000-memory.dmp
memory/1380-1-0x0000000002330000-0x0000000002331000-memory.dmp
memory/1380-2-0x0000000004170000-0x0000000004280000-memory.dmp
memory/4560-5-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\katEB89.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/4560-9-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1380-10-0x0000000000400000-0x0000000000594000-memory.dmp
memory/4560-11-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-23-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-24-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-25-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-27-0x0000000019320000-0x000000001957F000-memory.dmp
memory/4560-42-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-43-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-59-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-60-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\82f5e91f-40f9-4294-be48-faab75e13411.tmp
| MD5 | d751713988987e9331980363e24189ce |
| SHA1 | 97d170e1550eee4afc0af065b78cda302a97674c |
| SHA256 | 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945 |
| SHA512 | b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af |
memory/4560-77-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-78-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-79-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4560-80-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
| MD5 | 20d4b8fa017a12a108c87f540836e250 |
| SHA1 | 1ac617fac131262b6d3ce1f52f5907e31d5f6f00 |
| SHA256 | 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d |
| SHA512 | 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856 |
memory/4560-87-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Network Persistent State
| MD5 | ae5d04a5160df253492465869e18643a |
| SHA1 | 1edbae3e0819ce40eb1be3a834a59634da18b11a |
| SHA256 | 0e9610233cfc593c3def51e3b012e005e3e9b7297d372c210e0e4267ef34a5c7 |
| SHA512 | 278c9ca143406d99f90d535404f36630b46711582c2917db98dcd7c53ed0f9568dd6c9fbf9296e97dcf4d5625c65a564a2a10e058befc14ff4932cbcce850de2 |