Analysis
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max time kernel
204s -
max time network
137s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 20:13
Static task
static1
Behavioral task
behavioral1
Sample
c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe
Resource
win7-20221111-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe
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Size
220KB
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MD5
1fcbfae25b304f08679537ae249ed3d2
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SHA1
84216d14c98df02ddf0e888d30c0347f54ae8ede
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SHA256
c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5
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SHA512
63b367b620b0cd979086e3567e46ee89ba0697dbb51e865e183cc04b883a503195aa0094bc3c46bd45e48d5e8819c11ae9ec3670915868557f8b07cdc560e711
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SSDEEP
3072:HAVeTJnoM5ZdEI+5RhY/3zt8WS0FDtW7M2Zm2+0lZHwuj55UqwsdoDNbh4YVud:z3ZdElRq/3zCW0m2+YmEdoDNFVI
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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" coikii.exe -
Executes dropped EXE 1 IoCs
pid Process 872 coikii.exe -
Loads dropped DLL 2 IoCs
pid Process 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /y" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /i" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /b" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /q" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /j" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /w" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /k" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /v" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /c" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /n" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /o" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /u" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /p" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /l" coikii.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /r" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /d" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /g" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /m" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /s" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /x" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /e" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /h" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /l" c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /f" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /z" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /t" coikii.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\coikii = "C:\\Users\\Admin\\coikii.exe /a" coikii.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum coikii.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 coikii.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 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe 872 coikii.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 872 coikii.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1172 wrote to memory of 872 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 28 PID 1172 wrote to memory of 872 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 28 PID 1172 wrote to memory of 872 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 28 PID 1172 wrote to memory of 872 1172 c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe"C:\Users\Admin\AppData\Local\Temp\c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1172 -
C:\Users\Admin\coikii.exe"C:\Users\Admin\coikii.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:872
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
220KB
MD51fcbfae25b304f08679537ae249ed3d2
SHA184216d14c98df02ddf0e888d30c0347f54ae8ede
SHA256c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5
SHA51263b367b620b0cd979086e3567e46ee89ba0697dbb51e865e183cc04b883a503195aa0094bc3c46bd45e48d5e8819c11ae9ec3670915868557f8b07cdc560e711
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Filesize
220KB
MD51fcbfae25b304f08679537ae249ed3d2
SHA184216d14c98df02ddf0e888d30c0347f54ae8ede
SHA256c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5
SHA51263b367b620b0cd979086e3567e46ee89ba0697dbb51e865e183cc04b883a503195aa0094bc3c46bd45e48d5e8819c11ae9ec3670915868557f8b07cdc560e711
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Filesize
220KB
MD51fcbfae25b304f08679537ae249ed3d2
SHA184216d14c98df02ddf0e888d30c0347f54ae8ede
SHA256c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5
SHA51263b367b620b0cd979086e3567e46ee89ba0697dbb51e865e183cc04b883a503195aa0094bc3c46bd45e48d5e8819c11ae9ec3670915868557f8b07cdc560e711
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Filesize
220KB
MD51fcbfae25b304f08679537ae249ed3d2
SHA184216d14c98df02ddf0e888d30c0347f54ae8ede
SHA256c7df3718eae96ea3ce5e24c47bddcd0da9f841428f8309913385cf33ebb668b5
SHA51263b367b620b0cd979086e3567e46ee89ba0697dbb51e865e183cc04b883a503195aa0094bc3c46bd45e48d5e8819c11ae9ec3670915868557f8b07cdc560e711