Analysis
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max time kernel
66s -
max time network
55s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
30-04-2024 00:19
Behavioral task
behavioral1
Sample
b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe
Resource
win10v2004-20240419-en
Behavioral task
behavioral2
Sample
b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe
Resource
win11-20240426-en
General
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Target
b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe
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Size
266KB
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MD5
771f6cdc90f3cd728dd11b9ad2bb00c4
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SHA1
de45eccd945dc003f49c33630c006b2a876a8a42
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SHA256
b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015
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SHA512
1a47db27492c879436daa09aece98552ea318207e31f2ee86ff7619ff4b54c4a36bcf5706b3aa654bf35a95c87e8a7f76a3cba67602392f3876f160115a1377a
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SSDEEP
3072:PNXEGZJWhfNFC4S60+XoLczrVmXHuv3Ei9ZP7aPQ8ug0x3xS6HkL4TIH01ne4PK:VXzKdNY49u8rVbvjqMg0x3j+01net
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe -
Executes dropped EXE 2 IoCs
pid Process 760 ITS SB App Switch.exe 3688 ITS SB App Switch.exe -
resource yara_rule behavioral1/memory/220-0-0x0000000000A40000-0x0000000000AE0000-memory.dmp upx behavioral1/memory/220-14-0x0000000000A40000-0x0000000000AE0000-memory.dmp upx behavioral1/memory/220-15-0x0000000000A40000-0x0000000000AE0000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 220 wrote to memory of 760 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 84 PID 220 wrote to memory of 760 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 84 PID 220 wrote to memory of 760 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 84 PID 220 wrote to memory of 3688 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 85 PID 220 wrote to memory of 3688 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 85 PID 220 wrote to memory of 3688 220 b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe"C:\Users\Admin\AppData\Local\Temp\b4a1e6c9ac1a65e8af4e30b05d0860be22ff33b67ace88abceec426cdf783015.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"2⤵
- Executes dropped EXE
PID:760
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C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"C:\Users\Admin\AppData\Local\Temp\ITS\wincsecb\264\Production\ITS SB App Switch.exe"2⤵
- Executes dropped EXE
PID:3688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
87KB
MD5368332fca74f48697d842c5f4698ae1d
SHA10275153a1e62bd0eca0b02168895517ed66aac56
SHA2563a4a5b128c3a042010824fd33b719466b0d9320aa051ca3d5f1690124766ad59
SHA512fd9f1d1a4337e00fef5e9ea10a7fdf553e98df2cf2fdf818b68689a89de3c1d324de389e0c9ef863fef08a3dff8150db173b2203e9e92efaea67865e8d2805b5