Analysis
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max time kernel
83s -
max time network
178s -
platform
windows10_x64 -
resource
win10-20220414-en -
resource tags
arch:x64arch:x86image:win10-20220414-enlocale:en-usos:windows10-1703-x64system -
submitted
20/07/2022, 07:49
Behavioral task
behavioral1
Sample
4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe
Resource
win7-20220718-en
6 signatures
300 seconds
General
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Target
4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe
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Size
4.0MB
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MD5
bb95e4fc983c8aca5f0dd8d05ecf1d70
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SHA1
41abd3f03ec4c5944cb820f432b320611d94aed9
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SHA256
4e4b837d44e4183046f30ffd78bf32a92851250f8ce12cc1f314c600397075bb
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SHA512
f6a13f1acb62d1d4064d9b090742e713abd6c4f14bdb8d499609255001fc40033cab26d82f8254fd2f4a6429581edcb759b6fb8ed797bd3e9bc89394825d8171
Malware Config
Signatures
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YTStealer payload 1 IoCs
resource yara_rule behavioral2/memory/3636-121-0x00000000002F0000-0x00000000010C8000-memory.dmp family_ytstealer -
resource yara_rule behavioral2/memory/3636-118-0x00000000002F0000-0x00000000010C8000-memory.dmp upx behavioral2/memory/3636-121-0x00000000002F0000-0x00000000010C8000-memory.dmp upx -
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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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3636 4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe 3636 4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe 3636 4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe 3636 4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3636 wrote to memory of 1216 3636 4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe 67 PID 3636 wrote to memory of 1216 3636 4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe 67 PID 1216 wrote to memory of 1288 1216 cmd.exe 69 PID 1216 wrote to memory of 1288 1216 cmd.exe 69
Processes
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C:\Users\Admin\AppData\Local\Temp\4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe"C:\Users\Admin\AppData\Local\Temp\4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3636 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\4E4B837D44E4183046F30FFD78BF32A92851250F8CE12CC1F314C600397075BB.exe2⤵
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 03⤵PID:1288
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