74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76

General

Target

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
Size

120KB
MD5

006d3038c135e04efc24749d1f9e4e0f
SHA1

955b12400cf6dfbe15b07f058aaecdabfea0509e
SHA256

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76
SHA512

e4499be96ecee0422fc76caee9ab62cf610b0b3f9c0df26e8785a02d457925ba1106d5550dadd48629bc134ec5cb07fa3d279f96ffd0748ae1e8656a27b2bc89
SSDEEP

3072:xGyqafpd1/l0izZF6yCenK2iGlefx8X1y:xGw1pzZF44K3AAKX1

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:

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.execooaca.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	cooaca.exe

Executes dropped EXE 1 IoCs

Processes:

cooaca.exe

pid process

908 cooaca.exe

pid	process
908	cooaca.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:

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe

Adds Run key to start application 2 TTPs 54 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cooaca.exe74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /P"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /X"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /v"	cooaca.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /g"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /e"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /j"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /I"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /d"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /K"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /u"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /a"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /p"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /R"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /y"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /i"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /h"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /D"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /C"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /T"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /A"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /F"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /H"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /n"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /s"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /Z"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /t"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /Q"	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /B"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /U"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /o"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /W"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /w"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /J"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /z"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /Y"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /G"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /S"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /b"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /k"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /q"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /N"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /l"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /r"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /c"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /E"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /x"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /L"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /O"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /V"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /M"	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /f"	cooaca.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	cooaca.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cooaca = "C:\\Users\\Admin\\cooaca.exe /m"	cooaca.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:

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.execooaca.exe

pid	process
4460	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
4460	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe
908	cooaca.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.execooaca.exe

pid process

4460 74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
908 cooaca.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe

description	pid	process	target process
PID 4460 wrote to memory of 908	4460	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe	cooaca.exe
PID 4460 wrote to memory of 908	4460	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe	cooaca.exe
PID 4460 wrote to memory of 908	4460	74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe	cooaca.exe

C:\Users\Admin\AppData\Local\Temp\74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.exe
"C:\Users\Admin\AppData\Local\Temp\74fcc04493fb7ad4df3e967265b0bd4fcaa10a8f2f8f3b9dce106487003f7d76.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:4460

C:\Users\Admin\cooaca.exe
"C:\Users\Admin\cooaca.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:908

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\cooaca.exe

Filesize
120KB

MD5
26bdc53943848e80d89476347f914c1e

SHA1
588d7601b629554fc42a3d2bc3a8c58e9714ce7c

SHA256
4b8bf8af54d26ad0ee0caae68fd8173903c268bbd069877441c32a7c2506cedc

SHA512
bab96e4cf5cb8c8e0775614068fabfaf192e0cfc359e8ca8281e69de7973bb449e303e41718dca5a4d79c0e612a012d57fe9e6ea24ac15857e674a5ac3a866d7

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

Filesize
120KB

MD5
26bdc53943848e80d89476347f914c1e

SHA1
588d7601b629554fc42a3d2bc3a8c58e9714ce7c

SHA256
4b8bf8af54d26ad0ee0caae68fd8173903c268bbd069877441c32a7c2506cedc

SHA512
bab96e4cf5cb8c8e0775614068fabfaf192e0cfc359e8ca8281e69de7973bb449e303e41718dca5a4d79c0e612a012d57fe9e6ea24ac15857e674a5ac3a866d7

Download Submit
memory/908-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads