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Analysis
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max time kernel
261s -
max time network
336s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 23:51
Static task
static1
Behavioral task
behavioral1
Sample
b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe
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Size
168KB
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MD5
3062062af74c8901ad9848fe96e987eb
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SHA1
7a0c8e13e9f874966eb1b80412fccbd00f298d33
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SHA256
b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281
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SHA512
341f5718355b41fe233970bcfaaa9b119dc0874157bbddd5d43ab15bc12806f25c063e2b849a708c19cfb4832738e769a883970bbfb2d1b476ff01ca2cb0a6b3
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SSDEEP
3072:AKhZFfeKiGLOlx6ktpl/umGZPvX8T0wAt7IFREQC2mH:AKhLznOlx6kt/q5zwAthv
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" xiibuav.exe -
Executes dropped EXE 1 IoCs
pid Process 584 xiibuav.exe -
Loads dropped DLL 2 IoCs
pid Process 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /p" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /w" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /j" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /k" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /a" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /s" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /z" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /o" xiibuav.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /u" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /h" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /c" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /n" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /i" xiibuav.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /y" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /m" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /r" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /x" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /f" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /g" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /w" b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /l" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /q" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /b" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /e" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /t" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /d" xiibuav.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\xiibuav = "C:\\Users\\Admin\\xiibuav.exe /v" xiibuav.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe 584 xiibuav.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 584 xiibuav.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 320 wrote to memory of 584 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 27 PID 320 wrote to memory of 584 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 27 PID 320 wrote to memory of 584 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 27 PID 320 wrote to memory of 584 320 b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe"C:\Users\Admin\AppData\Local\Temp\b6a3fdcf100fb7dc0e1dcb679b3dcbf1f09c85ad1ca4a6f7474e8f223301f281.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:320 -
C:\Users\Admin\xiibuav.exe"C:\Users\Admin\xiibuav.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:584
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
168KB
MD55a390efac2ec7f69828fa58b7d4b0bd1
SHA1d04230a7515709c31a5a4e2a2a7cf536e6501326
SHA2562e64cc49867fc6a817ab56e9f529b1a088b9848c30b320ed4675f54a2e8f11e2
SHA51251d54940b13e8399b62a53136aabbaf912944dd7b212d627ab0976b1c95c882aa053f1dede60ddf60efa435b230c3efc1399c0c61884a613ba48da90818cd79e
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Filesize
168KB
MD55a390efac2ec7f69828fa58b7d4b0bd1
SHA1d04230a7515709c31a5a4e2a2a7cf536e6501326
SHA2562e64cc49867fc6a817ab56e9f529b1a088b9848c30b320ed4675f54a2e8f11e2
SHA51251d54940b13e8399b62a53136aabbaf912944dd7b212d627ab0976b1c95c882aa053f1dede60ddf60efa435b230c3efc1399c0c61884a613ba48da90818cd79e
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Filesize
168KB
MD55a390efac2ec7f69828fa58b7d4b0bd1
SHA1d04230a7515709c31a5a4e2a2a7cf536e6501326
SHA2562e64cc49867fc6a817ab56e9f529b1a088b9848c30b320ed4675f54a2e8f11e2
SHA51251d54940b13e8399b62a53136aabbaf912944dd7b212d627ab0976b1c95c882aa053f1dede60ddf60efa435b230c3efc1399c0c61884a613ba48da90818cd79e
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Filesize
168KB
MD55a390efac2ec7f69828fa58b7d4b0bd1
SHA1d04230a7515709c31a5a4e2a2a7cf536e6501326
SHA2562e64cc49867fc6a817ab56e9f529b1a088b9848c30b320ed4675f54a2e8f11e2
SHA51251d54940b13e8399b62a53136aabbaf912944dd7b212d627ab0976b1c95c882aa053f1dede60ddf60efa435b230c3efc1399c0c61884a613ba48da90818cd79e