Analysis
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max time kernel
151s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05-12-2022 10:38
Static task
static1
Behavioral task
behavioral1
Sample
dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe
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Size
84KB
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MD5
325716811f53075a13fac48eee857f84
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SHA1
a92abdbceaec24a6139cced1d385caea904ee20a
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SHA256
dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7
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SHA512
d6d32b306fe7670e9fcb8b254a2180b2c5236af8e9de446c10633f9851a02c5de5135de58c1e626bdd82d3869973087f4a588230de6f72e4651b54c6429df78f
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SSDEEP
1536:Dz8yZp47bg4htUVGLG/wXJYeUj27dTo13i6EmqSc:JpWUVeG/wXJY527ujc
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" taiefu.exe -
Executes dropped EXE 1 IoCs
pid Process 1192 taiefu.exe -
Loads dropped DLL 2 IoCs
pid Process 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /w" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /m" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /l" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /p" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /n" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /a" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /u" taiefu.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /q" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /c" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /h" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /i" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /b" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /x" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /g" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /y" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /s" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /v" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /o" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /r" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /z" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /t" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /e" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /f" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /e" dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /k" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /j" taiefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\taiefu = "C:\\Users\\Admin\\taiefu.exe /d" taiefu.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 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe 1192 taiefu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 1192 taiefu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1636 wrote to memory of 1192 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 28 PID 1636 wrote to memory of 1192 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 28 PID 1636 wrote to memory of 1192 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 28 PID 1636 wrote to memory of 1192 1636 dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.exe"C:\Users\Admin\AppData\Local\Temp\dffaf281dd222bb879938f5d9d350fec7a44ee103f7270af30e41bb1d6b237f7.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:1636 -
C:\Users\Admin\taiefu.exe"C:\Users\Admin\taiefu.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:1192
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
84KB
MD5637ef997c84558a06e7dabc69531c20c
SHA127c35bd21eee03d9fc633d62116984418db9ba82
SHA256fe62d927253d72c8ad1e8fafd32a40caded808be237d0ad7244f12b1d5ab8aaf
SHA5129768f11beb8b7563e832573677a1bda44a80bd20974d2cd80b8a989e24b30e3671b2a6eb063e263bf08c856e7e51fa8374bacf0c85025b1d13ceefb722f7f10b
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Filesize
84KB
MD5637ef997c84558a06e7dabc69531c20c
SHA127c35bd21eee03d9fc633d62116984418db9ba82
SHA256fe62d927253d72c8ad1e8fafd32a40caded808be237d0ad7244f12b1d5ab8aaf
SHA5129768f11beb8b7563e832573677a1bda44a80bd20974d2cd80b8a989e24b30e3671b2a6eb063e263bf08c856e7e51fa8374bacf0c85025b1d13ceefb722f7f10b
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Filesize
84KB
MD5637ef997c84558a06e7dabc69531c20c
SHA127c35bd21eee03d9fc633d62116984418db9ba82
SHA256fe62d927253d72c8ad1e8fafd32a40caded808be237d0ad7244f12b1d5ab8aaf
SHA5129768f11beb8b7563e832573677a1bda44a80bd20974d2cd80b8a989e24b30e3671b2a6eb063e263bf08c856e7e51fa8374bacf0c85025b1d13ceefb722f7f10b
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Filesize
84KB
MD5637ef997c84558a06e7dabc69531c20c
SHA127c35bd21eee03d9fc633d62116984418db9ba82
SHA256fe62d927253d72c8ad1e8fafd32a40caded808be237d0ad7244f12b1d5ab8aaf
SHA5129768f11beb8b7563e832573677a1bda44a80bd20974d2cd80b8a989e24b30e3671b2a6eb063e263bf08c856e7e51fa8374bacf0c85025b1d13ceefb722f7f10b