Analysis
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max time kernel
135s -
max time network
128s -
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 01:09
Static task
static1
Behavioral task
behavioral1
Sample
f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe
Resource
win10v2004-20240508-en
General
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Target
f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe
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Size
1.9MB
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MD5
33d3b2afd951a0eb10f8ed6cab058c9f
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SHA1
2e03baf6fb43defb44b3373161c608c3b399e64d
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SHA256
f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb
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SHA512
d0ce7e84788680e6268cfee088e10c2ee5195550d9e837f1624a4a62f90db1fdd8f219485cdbbc911b1e2b163d2583b06b826544eb4dbe98ed818d5cb31631e8
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SSDEEP
49152:CdKfTn6v2JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ
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 8 IoCs
Processes:
resource yara_rule behavioral1/memory/2444-1-0x0000000004020000-0x0000000004169000-memory.dmp family_vidar_v7 behavioral1/memory/2412-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2412-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2412-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2412-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2412-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2412-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2412-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat55A2.tmppid process 2412 kat55A2.tmp -
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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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:
f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exedescription pid process target process PID 2444 set thread context of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat55A2.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat55A2.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat55A2.tmppid process 2412 kat55A2.tmp 2412 kat55A2.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exedescription pid process target process PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp PID 2444 wrote to memory of 2412 2444 f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe kat55A2.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe"C:\Users\Admin\AppData\Local\Temp\f7e111150e30330c72fa2b9e40f7698f55ea2835abcb350f5e20273f15d57acb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2444 -
C:\Users\Admin\AppData\Local\Temp\kat55A2.tmpC:\Users\Admin\AppData\Local\Temp\kat55A2.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2412
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat55A2.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2412-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2412-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2412-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2412-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2412-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2412-23-0x0000000028460000-0x00000000286BF000-memory.dmpFilesize
2.4MB
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memory/2412-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2412-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2444-0-0x0000000002240000-0x0000000002241000-memory.dmpFilesize
4KB
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memory/2444-1-0x0000000004020000-0x0000000004169000-memory.dmpFilesize
1.3MB
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memory/2444-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB