a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14

General

Target

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Size

128KB
MD5

515f63b6647a633f0e5246e6b1c06263
SHA1

c183a64ee7e664f6e07fdf555f1130b03e6ac32c
SHA256

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14
SHA512

ec3af034fcede6ebe71e90bca0de3b18d3d9bfaf598e082538a8ba34d8297b63f0b0c56c9f422f2d5ba9f8b29af3b073c2d6a5ad18e931dcc14a8f086d8d3808
SSDEEP

1536:+Sk8uBI8OTta097n9Is9Flc4IE3IezPoVTTqtFhUpHnkHUS65BciumHnXtk:zk8uNOTs0BvHWAotqbvBmHS

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:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.execaiha.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	caiha.exe

Executes dropped EXE 1 IoCs

Processes:

caiha.exe

pid process

1064 caiha.exe

pid	process
1064	caiha.exe

Loads dropped DLL 2 IoCs

Processes:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

pid	process
1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

Adds Run key to start application 2 TTPs 58 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

caiha.exea6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /w"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /f"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /o"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /l"	caiha.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /g"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /w"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /e"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /v"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /k"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /l"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /c"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /q"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /z"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /i"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /a"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /i"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /t"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /t"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /m"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /c"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /k"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /r"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /x"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /x"	caiha.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /y"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /f"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /j"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /s"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /a"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /p"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /o"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /r"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /z"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /d"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /n"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /e"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /h"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /d"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /s"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /m"	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /m"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /q"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /y"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /j"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /h"	caiha.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /p"	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /u"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /b"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /g"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /u"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /b"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /v"	caiha.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /n"	caiha.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\caiha = "C:\\Users\\Admin\\caiha.exe /p"	caiha.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:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.execaiha.exe

pid	process
1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe
1064	caiha.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.execaiha.exe

pid process

1704 a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
1064 caiha.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe

description	pid	process	target process
PID 1704 wrote to memory of 1064	1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	caiha.exe
PID 1704 wrote to memory of 1064	1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	caiha.exe
PID 1704 wrote to memory of 1064	1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	caiha.exe
PID 1704 wrote to memory of 1064	1704	a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe	caiha.exe

C:\Users\Admin\AppData\Local\Temp\a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.exe
"C:\Users\Admin\AppData\Local\Temp\a6f1ea90c5c15d0da98ee9a545f10ffcfe6327f22dd13e41d7ebb676a17fef14.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:1704

C:\Users\Admin\caiha.exe
"C:\Users\Admin\caiha.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:1064

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\caiha.exe

Filesize
128KB

MD5
aece58bdc480f59dd4cb08b2d9702737

SHA1
f0094f7d62ab62cc29aba5b916d9cf7990c7e728

SHA256
70fd5bcc9589a211fa4db542ce42e246422b49a64cda70cb7a574645b4f85430

SHA512
4c0e0249fa4021a2e4cb105baff4aa006a13b4666c326fe290a2298636f0ee467485f3c3221a3e835d1dd1e37691ac43de68474df71b9dec8f334a9178b215cf

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

Filesize
128KB

MD5
aece58bdc480f59dd4cb08b2d9702737

SHA1
f0094f7d62ab62cc29aba5b916d9cf7990c7e728

SHA256
70fd5bcc9589a211fa4db542ce42e246422b49a64cda70cb7a574645b4f85430

SHA512
4c0e0249fa4021a2e4cb105baff4aa006a13b4666c326fe290a2298636f0ee467485f3c3221a3e835d1dd1e37691ac43de68474df71b9dec8f334a9178b215cf

Download Submit
\Users\Admin\caiha.exe

Filesize
128KB

MD5
aece58bdc480f59dd4cb08b2d9702737

SHA1
f0094f7d62ab62cc29aba5b916d9cf7990c7e728

SHA256
70fd5bcc9589a211fa4db542ce42e246422b49a64cda70cb7a574645b4f85430

SHA512
4c0e0249fa4021a2e4cb105baff4aa006a13b4666c326fe290a2298636f0ee467485f3c3221a3e835d1dd1e37691ac43de68474df71b9dec8f334a9178b215cf

Download Submit
\Users\Admin\caiha.exe

Filesize
128KB

MD5
aece58bdc480f59dd4cb08b2d9702737

SHA1
f0094f7d62ab62cc29aba5b916d9cf7990c7e728

SHA256
70fd5bcc9589a211fa4db542ce42e246422b49a64cda70cb7a574645b4f85430

SHA512
4c0e0249fa4021a2e4cb105baff4aa006a13b4666c326fe290a2298636f0ee467485f3c3221a3e835d1dd1e37691ac43de68474df71b9dec8f334a9178b215cf

Download Submit
memory/1064-59-0x0000000000000000-mapping.dmp

Download
memory/1704-56-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads