Analysis
-
max time kernel
134s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 01:29
Static task
static1
Behavioral task
behavioral1
Sample
a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe
Resource
win10v2004-20240508-en
General
-
Target
a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe
-
Size
1.9MB
-
MD5
d733cea23e05743a45eeec453f5001b0
-
SHA1
71faca7fa800d2aee91d331b3c8cf23dd9b522c4
-
SHA256
a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3
-
SHA512
3bab6d1f55b68a238d8bf5305a99c2b7dd33d503e1a41b3f3e20b65e3733e72992d2d6e6f44164bc68527c49e4e89c44b7c4a4d88ae93fe30af2a30a058bb184
-
SSDEEP
49152:CdKfTn6vyJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn5tIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral1/memory/4184-1-0x0000000004030000-0x0000000004179000-memory.dmp family_vidar_v7 behavioral1/memory/2632-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2632-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2632-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2632-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2632-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2632-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2632-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
katE9B4.tmppid process 2632 katE9B4.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:
a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exedescription pid process target process PID 4184 set thread context of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katE9B4.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katE9B4.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katE9B4.tmppid process 2632 katE9B4.tmp 2632 katE9B4.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exedescription pid process target process PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp PID 4184 wrote to memory of 2632 4184 a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe katE9B4.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe"C:\Users\Admin\AppData\Local\Temp\a783623aa29f5aa151f4b0c9f629900031ecd3c49ee10b63e496449a88822dd3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4184 -
C:\Users\Admin\AppData\Local\Temp\katE9B4.tmpC:\Users\Admin\AppData\Local\Temp\katE9B4.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2632
-
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 --field-trial-handle=3236,i,16488180140590516186,11762960689811837350,262144 --variations-seed-version --mojo-platform-channel-handle=1284 /prefetch:81⤵PID:1436
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\katE9B4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/2632-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2632-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2632-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2632-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2632-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2632-17-0x000000001B7D0000-0x000000001BA2F000-memory.dmpFilesize
2.4MB
-
memory/2632-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/2632-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/4184-0-0x00000000007B0000-0x00000000007B1000-memory.dmpFilesize
4KB
-
memory/4184-1-0x0000000004030000-0x0000000004179000-memory.dmpFilesize
1.3MB
-
memory/4184-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB