Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
04-10-2022 06:47
Static task
static1
Behavioral task
behavioral1
Sample
e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe
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Size
80KB
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MD5
57b596f966d37a7019a6e79b0c4f0cf0
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SHA1
817697aab73898929c1c2b477bbb209073a84860
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SHA256
e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6
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SHA512
1f008980387b7789acb87e619cd9985f0f8d9d627ed05bcd1162716aa14f48bec19552aa3361bdd5ba387a24968912c5591f58978a258668abd3015ea7989179
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SSDEEP
1536:Mstdgm616Lti8n42APNR2dcScLcPcxeTanuUHWO0s3xxNMq39gk34iSqR:AG4PNEdcScLcPcfnuk0yR
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" siear.exe -
Executes dropped EXE 1 IoCs
pid Process 2064 siear.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /o" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /z" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /d" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /j" siear.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /x" e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /l" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /y" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /w" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /u" siear.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /v" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /m" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /p" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /r" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /k" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /c" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /q" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /i" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /g" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /f" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /a" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /n" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /e" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /h" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /t" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /b" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /x" siear.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siear = "C:\\Users\\Admin\\siear.exe /s" siear.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 1612 e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe 1612 e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe 2064 siear.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1612 e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe 2064 siear.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1612 wrote to memory of 2064 1612 e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe 84 PID 1612 wrote to memory of 2064 1612 e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe 84 PID 1612 wrote to memory of 2064 1612 e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe"C:\Users\Admin\AppData\Local\Temp\e4f435f89c8f30517757f2ac1e5574fc935ade1d88ddeb1172ec171f23972ac6.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Users\Admin\siear.exe"C:\Users\Admin\siear.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:2064
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
80KB
MD5c9777ba97f32b1294ea7c91efc48216f
SHA156024531bf18e9dcbdad8881f50fc318a8375142
SHA256906693af2de7200f1da13ae86bb4eb234a5101ec804da53a6ad81614e32f204e
SHA51221176be38f31573e0385a85dd0a7a0a6ce9b641c0d33260476b85a89f6bb2e4eabb9b94e754e71ee2d8b7d010e93e7a3cc1cec65303097afab31de7d6c8ad80c
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Filesize
80KB
MD5c9777ba97f32b1294ea7c91efc48216f
SHA156024531bf18e9dcbdad8881f50fc318a8375142
SHA256906693af2de7200f1da13ae86bb4eb234a5101ec804da53a6ad81614e32f204e
SHA51221176be38f31573e0385a85dd0a7a0a6ce9b641c0d33260476b85a89f6bb2e4eabb9b94e754e71ee2d8b7d010e93e7a3cc1cec65303097afab31de7d6c8ad80c