Analysis
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max time kernel
157s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2023, 15:39
Static task
static1
Behavioral task
behavioral1
Sample
c86a960bc9e16ae974341abd369cf32f_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
c86a960bc9e16ae974341abd369cf32f_JC.exe
Resource
win10v2004-20230915-en
General
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Target
c86a960bc9e16ae974341abd369cf32f_JC.exe
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Size
211KB
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MD5
c86a960bc9e16ae974341abd369cf32f
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SHA1
e8a2547fa7e257297a0d337cbfe407c827ce7c9e
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SHA256
2ffb5eb543aaf133c10db110de4691514ce9a4799ba549d2e972d9254c88f3aa
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SHA512
b8255831602340314b39b69f7dd49159f6c67521908244ea37375561ac2c00dcc9d3de35a0b86bb3d9a3f989e5197c65b815011c7483cce18cf77719f0886ef1
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SSDEEP
3072:EPUHpiKT2t2UHIu05W7SAFJJOUD9cckiKop97f3r8n9t9Ygnt:9rTfUHeeSKOS9ccFKk3Y9t9Y
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 3244 Isass.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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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe" c86a960bc9e16ae974341abd369cf32f_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Users\\Public\\Microsoft Build\\Isass.exe" c86a960bc9e16ae974341abd369cf32f_JC.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1480 c86a960bc9e16ae974341abd369cf32f_JC.exe 1480 c86a960bc9e16ae974341abd369cf32f_JC.exe 3244 Isass.exe 3244 Isass.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1480 wrote to memory of 3244 1480 c86a960bc9e16ae974341abd369cf32f_JC.exe 86 PID 1480 wrote to memory of 3244 1480 c86a960bc9e16ae974341abd369cf32f_JC.exe 86 PID 1480 wrote to memory of 3244 1480 c86a960bc9e16ae974341abd369cf32f_JC.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\c86a960bc9e16ae974341abd369cf32f_JC.exe"C:\Users\Admin\AppData\Local\Temp\c86a960bc9e16ae974341abd369cf32f_JC.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Users\Public\Microsoft Build\Isass.exe"C:\Users\Public\Microsoft Build\Isass.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3244
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
211KB
MD5c86a960bc9e16ae974341abd369cf32f
SHA1e8a2547fa7e257297a0d337cbfe407c827ce7c9e
SHA2562ffb5eb543aaf133c10db110de4691514ce9a4799ba549d2e972d9254c88f3aa
SHA512b8255831602340314b39b69f7dd49159f6c67521908244ea37375561ac2c00dcc9d3de35a0b86bb3d9a3f989e5197c65b815011c7483cce18cf77719f0886ef1
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Filesize
211KB
MD5c86a960bc9e16ae974341abd369cf32f
SHA1e8a2547fa7e257297a0d337cbfe407c827ce7c9e
SHA2562ffb5eb543aaf133c10db110de4691514ce9a4799ba549d2e972d9254c88f3aa
SHA512b8255831602340314b39b69f7dd49159f6c67521908244ea37375561ac2c00dcc9d3de35a0b86bb3d9a3f989e5197c65b815011c7483cce18cf77719f0886ef1
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Filesize
5.3MB
MD50f0137052e935b0db07044ab070b2a5a
SHA1821a1be411aac38f04887f625580b43576cf6563
SHA25679cb5355251478b42b816ed24fdd740dfbaecdcdfe61dac0e5975cd76218e31c
SHA5122fa52e194f6773ec04d0dc49892ab628aa0881ead0ec36ba106bf752976f52c552ae341076fd2c8682a7eb415fbae37c4821ef0a3ead1a825be086c91b428c6b