1e40bce6e476e4c0485b3f813cff5d493b1e07f52a89b56a31765529b809ea33

General

Target

myfile.exe
Size

4.3MB
MD5

0a438448cebd370318b5294775e2405c
SHA1

60abd37bf94ee406653af60e5b72f1f69f646308
SHA256

1e40bce6e476e4c0485b3f813cff5d493b1e07f52a89b56a31765529b809ea33
SHA512

dc21a068d6aa3ce93a399d2b636a4dc17fd9b2f60c921eaadaef4eb0049c4ef5d1c09479c906660d0fa7bb7e688cdae54a36d9e73e35ac209e469a862c992976

Score

8^/10

ransomware

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

HexInformation.exeHexDecryptor.exeHexLocker.exe

pid process

3256 HexInformation.exe
3540 HexDecryptor.exe
3448 HexLocker.exe
Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

pid	process
3256	HexInformation.exe
3540	HexDecryptor.exe
3448	HexLocker.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

HexLocker.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wl.jpg"	HexLocker.exe

Drops file in Windows directory 1 IoCs

Processes:

svchost.exe

description ioc process

File opened for modification C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat svchost.exe
Modifies Control Panel 1 IoCs
evasion

Processes:

HexLocker.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\Control Panel\Desktop HexLocker.exe

description	ioc	process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\Control Panel\Desktop	HexLocker.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = 60b8c5f3397dd601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exe

description pid process

Token: SeShutdownPrivilege 2332 svchost.exe
Token: SeCreatePagefilePrivilege 2332 svchost.exe

description	pid	process
Token: SeShutdownPrivilege	2332	svchost.exe
Token: SeCreatePagefilePrivilege	2332	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

myfile.execmd.exeHexDecryptor.exe

description	pid	process	target process
PID 3200 wrote to memory of 2792	3200	myfile.exe	cmd.exe
PID 3200 wrote to memory of 2792	3200	myfile.exe	cmd.exe
PID 2792 wrote to memory of 3964	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3964	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3820	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3820	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 1756	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 1756	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3028	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3028	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3208	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3208	2792	cmd.exe	tree.com
PID 2792 wrote to memory of 3256	2792	cmd.exe	HexInformation.exe
PID 2792 wrote to memory of 3256	2792	cmd.exe	HexInformation.exe
PID 2792 wrote to memory of 3256	2792	cmd.exe	HexInformation.exe
PID 2792 wrote to memory of 3540	2792	cmd.exe	HexDecryptor.exe
PID 2792 wrote to memory of 3540	2792	cmd.exe	HexDecryptor.exe
PID 2792 wrote to memory of 3540	2792	cmd.exe	HexDecryptor.exe
PID 2792 wrote to memory of 3448	2792	cmd.exe	HexLocker.exe
PID 2792 wrote to memory of 3448	2792	cmd.exe	HexLocker.exe
PID 2792 wrote to memory of 3448	2792	cmd.exe	HexLocker.exe
PID 3540 wrote to memory of 2568	3540	HexDecryptor.exe	cmd.exe
PID 3540 wrote to memory of 2568	3540	HexDecryptor.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\myfile.exe
"C:\Users\Admin\AppData\Local\Temp\myfile.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3200

C:\Windows\System32\cmd.exe
"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\4992.tmp\4993.tmp\4994.bat C:\Users\Admin\AppData\Local\Temp\myfile.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2792

C:\Windows\system32\tree.com
tree
3⤵
PID:3964

C:\Windows\system32\tree.com
tree
3⤵
PID:3820

C:\Windows\system32\tree.com
tree
3⤵
PID:1756

C:\Windows\system32\tree.com
tree
3⤵
PID:3028

C:\Windows\system32\tree.com
tree
3⤵
PID:3208

C:\Users\Admin\Desktop\HexInformation.exe
HexInformation.exe
3⤵
- Executes dropped EXE
PID:3256

C:\Users\Admin\Desktop\HexDecryptor.exe
HexDecryptor.exe
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3540

C:\Windows\System32\cmd.exe
"C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\4F2F.tmp\4F40.tmp\4F41.bat C:\Users\Admin\Desktop\HexDecryptor.exe"
4⤵
PID:2568

C:\Users\Admin\Desktop\HexLocker.exe
HexLocker.exe
3⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Modifies Control Panel
PID:3448

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2332

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

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Downloads

C:\Users\Admin\AppData\Local\Temp\4992.tmp\4993.tmp\4994.bat

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C:\Users\Admin\AppData\Local\Temp\4F2F.tmp\4F40.tmp\4F41.bat

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C:\Users\Admin\AppData\Local\Temp\HexDCIF.hex

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C:\Users\Admin\AppData\Local\Temp\HexIF.hex

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C:\Users\Admin\AppData\Local\Temp\HexLK.hex

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C:\Users\Admin\AppData\Local\Temp\rd000db.dll

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C:\Users\Admin\Desktop\HexDecryptor.exe

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C:\Users\Admin\Desktop\HexDecryptor.exe

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C:\Users\Admin\Desktop\HexInformation.exe

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C:\Users\Admin\Desktop\HexInformation.exe

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C:\Users\Admin\Desktop\HexLocker.exe

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C:\Users\Admin\Desktop\HexLocker.exe

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memory/1756-4-0x0000000000000000-mapping.dmp

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memory/2568-24-0x0000000000000000-mapping.dmp

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memory/2792-0-0x0000000000000000-mapping.dmp

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memory/3028-5-0x0000000000000000-mapping.dmp

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memory/3208-6-0x0000000000000000-mapping.dmp

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memory/3256-26-0x0000000000010000-0x0000000000011000-memory.dmp

Filesize
4KB

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memory/3256-20-0x0000000072CE0000-0x00000000733CE000-memory.dmp

Filesize
6.9MB

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memory/3256-12-0x0000000000000000-mapping.dmp

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memory/3256-11-0x0000000000000000-mapping.dmp

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memory/3256-28-0x0000000004F10000-0x0000000004F11000-memory.dmp

Filesize
4KB

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memory/3256-29-0x0000000004AB0000-0x0000000004AB1000-memory.dmp

Filesize
4KB

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memory/3256-30-0x0000000004A60000-0x0000000004A61000-memory.dmp

Filesize
4KB

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memory/3448-18-0x0000000000000000-mapping.dmp

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memory/3448-19-0x0000000000000000-mapping.dmp

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memory/3540-16-0x0000000000000000-mapping.dmp

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memory/3540-14-0x0000000000000000-mapping.dmp

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memory/3820-3-0x0000000000000000-mapping.dmp

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memory/3964-2-0x0000000000000000-mapping.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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