isrstealer | 4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447

Analysis

max time kernel
143s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20/10/2022, 20:20

Target
4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe
Size 376KB
Sample221020-y4fk6adcd4
SHA256 4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447
MD5 510577ca032cd0e24d889871ad787e60
SHA1 7d7a039db3bcfe6bd19f0e8024f6abf85f42f7e9
SHA512 585f1ca45e00466d658f29f1b7656ed833f7280bf3866002a00f410f67550bf038bb95f5273bb672a5359844a27cb04acb6968cf32d9b6af59aff362fb30bbe1
SSDEEP 6144:fXgv5RyS+L5oFzU0oyeXRfcuWKNwh0Z4kXT2VX7I1tpDJhrFUhc3OVyr4:PghkVkzU0rehWKQkXCVmplhroyr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
trojan stealer isrstealer

ISR Stealer payload 1 IoCs

resource	yara_rule
behavioral2/memory/3364-136-0x0000000000600000-0x0000000000642000-memory.dmp	family_isrstealer

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84
PID 4412 wrote to memory of 3364	4412	4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe	84

C:\Users\Admin\AppData\Local\Temp\4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe
"C:\Users\Admin\AppData\Local\Temp\4b4138636d2afe18abff9cde7681abb2c6c16bdf1e21d665eb1fa7b6f6f1b447.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  PID:3364

memory/3364-136-0x0000000000600000-0x0000000000642000-memory.dmp

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memory/4412-132-0x0000000074880000-0x0000000074E31000-memory.dmp

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memory/4412-133-0x0000000074880000-0x0000000074E31000-memory.dmp

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memory/4412-138-0x0000000074880000-0x0000000074E31000-memory.dmp

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