Analysis
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max time kernel
148s -
max time network
61s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
26/07/2020, 13:59
Static task
static1
Behavioral task
behavioral1
Sample
a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe
Resource
win7
Behavioral task
behavioral2
Sample
a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe
Resource
win10v200722
General
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Target
a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe
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Size
1.6MB
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MD5
aa1101d3c7afdb51d8520ead1e690c9a
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SHA1
f385e25cbc51dd820a87f9c0f4618a9e92f4090b
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SHA256
a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a
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SHA512
3671850bad614f34d6e6f818e4fdb15b7651b121c264758e083796aed957d008982b5605b9e5ac33512641c510ac568e073e0ea9214f92577ae8c53aaf4fbf98
Malware Config
Signatures
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1468 wrote to memory of 3860 1468 a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe 72 PID 1468 wrote to memory of 3860 1468 a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe 72 PID 1468 wrote to memory of 3860 1468 a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe 72 -
Drops file in Program Files directory 10 IoCs
description ioc Process File created C:\Program Files\ReceiveOptimize.pot.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\UseSwitch.jpeg.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\DebugUpdate.svg.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\EnterStop.dotm.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\SetCheckpoint.svg.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\StopSelect.dotx.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\SyncSend.png.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\UnpublishTrace.xltx.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\UseClose.jpg.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Program Files\WriteSend.zip.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe -
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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Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File created C:\Users\Admin\Pictures\ResizeInitialize.tiff.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Users\Admin\Pictures\UninstallStop.raw.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Users\Admin\Pictures\UseDisable.tiff.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Users\Admin\Pictures\EnableResize.tiff.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe File created C:\Users\Admin\Pictures\OptimizeUninstall.tif.Sil3nt5pring a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe"C:\Users\Admin\AppData\Local\Temp\a0fa26c2f79fd4e0f3f25b3fcb7aa02bb0194b34f13aa8d721b114432a00b05a.bin.exe"1⤵
- Suspicious use of WriteProcessMemory
- Drops file in Program Files directory
- Modifies extensions of user files
PID:1468 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c pause2⤵PID:3860
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