Analysis
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max time kernel
150s -
max time network
114s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 09:36
Static task
static1
Behavioral task
behavioral1
Sample
a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe
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Size
204KB
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MD5
4454a270e858b40aa63606e141245264
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SHA1
891861a3f125b1a3ba0110aba2c726ee248674d9
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SHA256
a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3
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SHA512
44437a23832d4f6384c05168db3458bc6b56d02c0cebacc4e17ea6bee5381dcfe17ce5247189fa8e327e065ed1643ae883bee9a1fb43a186238e3ecfac552369
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SSDEEP
3072:UmaW8Lg0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWDtC:vvj4QxL7B9W0c1RCzR/fSml48
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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe Set value (int) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pauaz.exe -
Executes dropped EXE 1 IoCs
pid Process 1712 pauaz.exe -
Loads dropped DLL 2 IoCs
pid Process 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /x" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /m" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /a" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /n" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /p" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /z" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /o" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /j" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /i" pauaz.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /y" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /e" a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /c" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /l" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /s" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /w" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /g" pauaz.exe Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /h" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /e" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /v" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /t" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /d" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /q" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /k" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /f" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /u" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /b" pauaz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\pauaz = "C:\\Users\\Admin\\pauaz.exe /r" pauaz.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 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe 1712 pauaz.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 1712 pauaz.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1264 wrote to memory of 1712 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 28 PID 1264 wrote to memory of 1712 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 28 PID 1264 wrote to memory of 1712 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 28 PID 1264 wrote to memory of 1712 1264 a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.exe"C:\Users\Admin\AppData\Local\Temp\a8dff9162e86678a126d4a03193806acaac805985b572082650f304c84f3def3.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:1264 -
C:\Users\Admin\pauaz.exe"C:\Users\Admin\pauaz.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:1712
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
204KB
MD579121d9a0a05eb99bb11dddbfe920511
SHA1995d136c5f9743dbf8afe4ba00fb24b90684fdd3
SHA25617b0c582a48cbc04a9c06dd8f019e7abdaf13dc294a0e3f6c2096b9d7c85d0dd
SHA5125462de5ff69488366f377658cefdd1cd8e49a07cf9ee13948e15708cdcc514c4500706c60044037581e622d8bba30619c3351a224bea45d43695818f2bd33517
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Filesize
204KB
MD579121d9a0a05eb99bb11dddbfe920511
SHA1995d136c5f9743dbf8afe4ba00fb24b90684fdd3
SHA25617b0c582a48cbc04a9c06dd8f019e7abdaf13dc294a0e3f6c2096b9d7c85d0dd
SHA5125462de5ff69488366f377658cefdd1cd8e49a07cf9ee13948e15708cdcc514c4500706c60044037581e622d8bba30619c3351a224bea45d43695818f2bd33517
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Filesize
204KB
MD579121d9a0a05eb99bb11dddbfe920511
SHA1995d136c5f9743dbf8afe4ba00fb24b90684fdd3
SHA25617b0c582a48cbc04a9c06dd8f019e7abdaf13dc294a0e3f6c2096b9d7c85d0dd
SHA5125462de5ff69488366f377658cefdd1cd8e49a07cf9ee13948e15708cdcc514c4500706c60044037581e622d8bba30619c3351a224bea45d43695818f2bd33517
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Filesize
204KB
MD579121d9a0a05eb99bb11dddbfe920511
SHA1995d136c5f9743dbf8afe4ba00fb24b90684fdd3
SHA25617b0c582a48cbc04a9c06dd8f019e7abdaf13dc294a0e3f6c2096b9d7c85d0dd
SHA5125462de5ff69488366f377658cefdd1cd8e49a07cf9ee13948e15708cdcc514c4500706c60044037581e622d8bba30619c3351a224bea45d43695818f2bd33517