f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e

General

Target

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Size

184KB
MD5

16a93d1b8bc0cf55e4e8048ace33e24f
SHA1

899ed268b5c09119ffa8f3e49bdbb8cc3a501493
SHA256

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e
SHA512

5e90377bffeca100c91455b6865018752d7e45775462df0b161a2494986b2f94691fea20f3b0a030d6b5de384c53eb414fede069dae1cf319a0ab2585f2778b6
SSDEEP

3072:EiPyY93+BEF8F+7+w3wrOwo9aDZQNfEq02wfG:EiPyY1+T0fZH

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:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exequuucur.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	quuucur.exe

Executes dropped EXE 1 IoCs

Processes:

quuucur.exe

pid process

1780 quuucur.exe

pid	process
1780	quuucur.exe

Loads dropped DLL 2 IoCs

Processes:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

pid	process
1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

quuucur.exef5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /e"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /a"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /g"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /f"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /v"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /k"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /l"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /s"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /u"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /o"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /w"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /w"	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /c"	quuucur.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /t"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /x"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /j"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /i"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /b"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /d"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /n"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /r"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /q"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /p"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /m"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /z"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /y"	quuucur.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\quuucur = "C:\\Users\\Admin\\quuucur.exe /h"	quuucur.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:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exequuucur.exe

pid	process
1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe
1780	quuucur.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exequuucur.exe

pid process

1160 f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
1780 quuucur.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe

description	pid	process	target process
PID 1160 wrote to memory of 1780	1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	quuucur.exe
PID 1160 wrote to memory of 1780	1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	quuucur.exe
PID 1160 wrote to memory of 1780	1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	quuucur.exe
PID 1160 wrote to memory of 1780	1160	f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe	quuucur.exe

C:\Users\Admin\AppData\Local\Temp\f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.exe
"C:\Users\Admin\AppData\Local\Temp\f5a17b90c98709ba61afff6e9a01ba679f7ded79480c6447019d5111eca2788e.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:1160

C:\Users\Admin\quuucur.exe
"C:\Users\Admin\quuucur.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:1780

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\quuucur.exe

Filesize
184KB

MD5
9c3100a9bd5acd2509b20951c5933cdf

SHA1
5ade718534bead0673190fba9f900d9ab1080a27

SHA256
ffcbfbb86153959ea3fb3fbd1849ac9b2b626a7f3d88a3842f70ebc8519e5ae7

SHA512
2639c0a1dd4b0ddd7a053eb982a9d99fd6c31433fe5dc53b3808a342482f129a810a6d5d5af2efe0b0d1cfdc3f00ba5e0acbc837f43903f06a14785f670d88e0

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

Filesize
184KB

MD5
9c3100a9bd5acd2509b20951c5933cdf

SHA1
5ade718534bead0673190fba9f900d9ab1080a27

SHA256
ffcbfbb86153959ea3fb3fbd1849ac9b2b626a7f3d88a3842f70ebc8519e5ae7

SHA512
2639c0a1dd4b0ddd7a053eb982a9d99fd6c31433fe5dc53b3808a342482f129a810a6d5d5af2efe0b0d1cfdc3f00ba5e0acbc837f43903f06a14785f670d88e0

Download Submit
\Users\Admin\quuucur.exe

Filesize
184KB

MD5
9c3100a9bd5acd2509b20951c5933cdf

SHA1
5ade718534bead0673190fba9f900d9ab1080a27

SHA256
ffcbfbb86153959ea3fb3fbd1849ac9b2b626a7f3d88a3842f70ebc8519e5ae7

SHA512
2639c0a1dd4b0ddd7a053eb982a9d99fd6c31433fe5dc53b3808a342482f129a810a6d5d5af2efe0b0d1cfdc3f00ba5e0acbc837f43903f06a14785f670d88e0

Download Submit
\Users\Admin\quuucur.exe

Filesize
184KB

MD5
9c3100a9bd5acd2509b20951c5933cdf

SHA1
5ade718534bead0673190fba9f900d9ab1080a27

SHA256
ffcbfbb86153959ea3fb3fbd1849ac9b2b626a7f3d88a3842f70ebc8519e5ae7

SHA512
2639c0a1dd4b0ddd7a053eb982a9d99fd6c31433fe5dc53b3808a342482f129a810a6d5d5af2efe0b0d1cfdc3f00ba5e0acbc837f43903f06a14785f670d88e0

Download Submit
memory/1160-56-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/1780-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads