c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194

General

Target

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
Size

204KB
MD5

1d5ee2ea035c779343781abd14bf1c90
SHA1

14c1d90548b12dcd93164c38593cf5dc67bb05de
SHA256

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194
SHA512

41f24dce0af6f01a01fa74ed06e2c1e2ec826c29f9ef994fc2794a85129ec4befed49ed1331161ccf4d9fbfd809e0f122b6fbd40565bba630559317ba1e52c04
SSDEEP

6144:o4pJt0NngeO+cwjfTfGHN1RWrOy9uJV10BK+baPe3ObUrlBXvgd7Vc7U:o46NngeO+cwjfTfGHN1Ax9uJV10BK+bJ

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

koami.exec7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	koami.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe

Executes dropped EXE 1 IoCs

Processes:

koami.exe

pid process

2588 koami.exe

pid	process
2588	koami.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe

Adds Run key to start application 2 TTPs 54 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exekoami.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /l"	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /I"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /p"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /r"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /J"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /x"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /i"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /s"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /q"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /d"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /L"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /M"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /l"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /Y"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /o"	koami.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /u"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /m"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /h"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /S"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /D"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /W"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /y"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /b"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /z"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /V"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /c"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /v"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /j"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /F"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /B"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /P"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /w"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /K"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /X"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /Q"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /g"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /H"	koami.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /e"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /T"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /O"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /k"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /a"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /E"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /n"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /G"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /Z"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /f"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /N"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /C"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /U"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /R"	koami.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\koami = "C:\\Users\\Admin\\koami.exe /t"	koami.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exekoami.exe

pid	process
456	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
456	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe
2588	koami.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exekoami.exe

pid process

456 c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
2588 koami.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe

description	pid	process	target process
PID 456 wrote to memory of 2588	456	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe	koami.exe
PID 456 wrote to memory of 2588	456	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe	koami.exe
PID 456 wrote to memory of 2588	456	c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe	koami.exe

C:\Users\Admin\AppData\Local\Temp\c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.exe
"C:\Users\Admin\AppData\Local\Temp\c7ec8f578579d0ac744a4124ab63d2c7685feaa395fc264e06f5cd044b113194.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:456

C:\Users\Admin\koami.exe
"C:\Users\Admin\koami.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:2588

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\koami.exe

Filesize
204KB

MD5
fb2e45c767fcd167bd40126a52eb449a

SHA1
38d242b64335c6a74d628b2582f5294c548bc003

SHA256
ed9dcb27a97f07a0f6611d5e1f58318b149ac4e3ef98ab06e6c740f370d9bba7

SHA512
23bb240c7f18d8ac44a493978100d40e1ebd8f5bf08939a572703d3eef5166cb68750f19b6db519112ad12be6e69789484cf1d55ad6bc36d041e425d9660dea8

Download Submit
C:\Users\Admin\koami.exe

Filesize
204KB

MD5
fb2e45c767fcd167bd40126a52eb449a

SHA1
38d242b64335c6a74d628b2582f5294c548bc003

SHA256
ed9dcb27a97f07a0f6611d5e1f58318b149ac4e3ef98ab06e6c740f370d9bba7

SHA512
23bb240c7f18d8ac44a493978100d40e1ebd8f5bf08939a572703d3eef5166cb68750f19b6db519112ad12be6e69789484cf1d55ad6bc36d041e425d9660dea8

Download Submit
memory/2588-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads