Analysis Overview
SHA256
a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019
Threat Level: Known bad
The file a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019 was found to be: Known bad.
Malicious Activity Summary
Detect Vidar Stealer
Vidar
Stealc
Downloads MZ/PE file
Executes dropped EXE
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Checks installed software on the system
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-28 13:31
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-28 13:31
Reported
2024-06-28 13:34
Platform
win10v2004-20240611-en
Max time kernel
140s
Max time network
138s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Stealc
Vidar
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
Reads user/profile data of web browsers
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4972 set thread context of 3684 | N/A | C:\Users\Admin\AppData\Local\Temp\a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019.exe | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019.exe
"C:\Users\Admin\AppData\Local\Temp\a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019.exe"
C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp
C:\Users\Admin\AppData\Local\Temp\kat46D8.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=3776,i,6870419347051655189,5491911050420577193,262144 --variations-seed-version --mojo-platform-channel-handle=3752 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.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 |
| US | 8.8.8.8:53 | 22.249.124.192.in-addr.arpa | udp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| US | 8.8.8.8:53 | 214.251.201.195.in-addr.arpa | udp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.16.208.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
Files
memory/4972-0-0x00000000022A0000-0x00000000022A1000-memory.dmp
memory/4972-2-0x00000000029F0000-0x0000000002B00000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat46D8.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/3684-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3684-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3684-9-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4972-10-0x0000000000400000-0x0000000000635000-memory.dmp
memory/3684-22-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3684-23-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3684-24-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3684-26-0x0000000022700000-0x000000002295F000-memory.dmp
memory/3684-34-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3684-35-0x0000000000400000-0x0000000000648000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-28 13:31
Reported
2024-06-28 13:34
Platform
win11-20240508-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Stealc
Vidar
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
Reads data files stored by FTP clients
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1772 set thread context of 3388 | N/A | C:\Users\Admin\AppData\Local\Temp\a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019.exe | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\kat71D4.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\kat71D4.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019.exe
"C:\Users\Admin\AppData\Local\Temp\a43347013f2ba6c30bd6f5f7d4ea4c48ab72203316d5236fb88bae436e930019.exe"
C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp
C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp" & rd /s /q "C:\ProgramData\HCBAKJEHDBGH" & 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 | steamcommunity.com | udp |
| US | 8.8.8.8:53 | tea.arpdabl.org | udp |
Files
memory/1772-0-0x0000000002390000-0x0000000002391000-memory.dmp
memory/1772-1-0x00000000040E0000-0x00000000041F0000-memory.dmp
memory/3388-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3388-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1772-9-0x0000000000400000-0x0000000000635000-memory.dmp
memory/3388-10-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat71D4.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/3388-11-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3388-12-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3388-13-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3388-14-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3388-17-0x0000000000400000-0x0000000000648000-memory.dmp