b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39

General

Target

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
Size

191KB
MD5

e6c81c0a935b723201e297f3cec55ae4
SHA1

dd21b3b803105d922d64cbeccbe9474d7d841cca
SHA256

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39
SHA512

c5cf01e63ae35bddd6b276f389c3de005f536e383feb38948e7bae72cac9fef37f52dd4eb5b05a87c9f98e399ad457eb78c898e4008da666d1b881e4826c92fc
SSDEEP

3072:epP3WXUQRkgydpjyGNf01DERN8fCob/gL1jJ+TcW8FB64pl4kiNWxnybz:gP3eYdriYaCaJcWaB66i8xnybz

Score

9^/10

cryptone packer persistence

Malware Config

Signatures

CryptOne packer 6 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
behavioral2/memory/4888-133-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/2576-139-0x0000000000EF0000-0x0000000000F19000-memory.dmp	cryptone
behavioral2/memory/2576-141-0x0000000000EF0000-0x0000000000F19000-memory.dmp	cryptone
behavioral2/memory/2576-140-0x0000000000EF0000-0x0000000000F19000-memory.dmp	cryptone
behavioral2/memory/4888-147-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/1596-149-0x0000000000A10000-0x0000000000A39000-memory.dmp	cryptone

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exemspaint.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe System Incorporated = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe\\Reader_sl.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mtutuf = "C:\\Users\\Admin\\AppData\\Roaming\\Identities\\Mtutuf.exe"	mspaint.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

svchost.exemspaint.exe

description	ioc	process
File opened (read-only)	\??\B:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\D:	mspaint.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\F:	svchost.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exeb73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

description	pid	process	target process
PID 4912 set thread context of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 set thread context of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exesvchost.exeb73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

pid	process
4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
1596	svchost.exe
1596	svchost.exe
2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

pid process

4888 b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

pid	process
4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exesvchost.execalc.exemspaint.exe

description	pid	process
Token: SeDebugPrivilege	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
Token: SeDebugPrivilege	1596	svchost.exe
Token: SeDebugPrivilege	1916	calc.exe
Token: SeDebugPrivilege	2576	mspaint.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exeb73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exesvchost.exeb73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe

description	pid	process	target process
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4912 wrote to memory of 4888	4912	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 1596	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	svchost.exe
PID 4888 wrote to memory of 1596	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	svchost.exe
PID 4888 wrote to memory of 1596	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	svchost.exe
PID 4888 wrote to memory of 1596	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	svchost.exe
PID 4888 wrote to memory of 1916	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 4888 wrote to memory of 1916	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 4888 wrote to memory of 1916	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 4888 wrote to memory of 1916	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 4888 wrote to memory of 1916	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 1596 wrote to memory of 2576	1596	svchost.exe	mspaint.exe
PID 1596 wrote to memory of 2576	1596	svchost.exe	mspaint.exe
PID 1596 wrote to memory of 2576	1596	svchost.exe	mspaint.exe
PID 1596 wrote to memory of 2576	1596	svchost.exe	mspaint.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 4888 wrote to memory of 2284	4888	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
PID 2284 wrote to memory of 1596	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	svchost.exe
PID 2284 wrote to memory of 1596	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	svchost.exe
PID 2284 wrote to memory of 1916	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 2284 wrote to memory of 1916	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	calc.exe
PID 2284 wrote to memory of 2576	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	mspaint.exe
PID 2284 wrote to memory of 2576	2284	b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe	mspaint.exe

C:\Users\Admin\AppData\Local\Temp\b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
"C:\Users\Admin\AppData\Local\Temp\b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4912

C:\Users\Admin\AppData\Local\Temp\b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
"C:\Users\Admin\AppData\Local\Temp\b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4888

C:\Windows\SysWOW64\calc.exe
"C:\Windows\SysWOW64\calc.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1916

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
3⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596

C:\Windows\SysWOW64\mspaint.exe
"C:\Windows\SysWOW64\mspaint.exe"
4⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:2576

C:\Users\Admin\AppData\Local\Temp\b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe
"C:\Users\Admin\AppData\Local\Temp\b73518f4d0d5e0f3ac262335ae4715f4f54f91f623a6de74c2ef1326754b6c39.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2284

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

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

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Downloads

memory/1596-149-0x0000000000A10000-0x0000000000A39000-memory.dmp

Filesize
164KB

Download
memory/1596-153-0x0000000000A50000-0x0000000000A9E000-memory.dmp

Filesize
312KB

Download
memory/1596-136-0x0000000000000000-mapping.dmp

Download
memory/1916-154-0x00000000021A0000-0x00000000021EE000-memory.dmp

Filesize
312KB

Download
memory/1916-137-0x0000000000000000-mapping.dmp

Download
memory/2284-143-0x0000000000000000-mapping.dmp

Download
memory/2284-152-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2284-151-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2284-148-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2284-146-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2284-144-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2576-140-0x0000000000EF0000-0x0000000000F19000-memory.dmp

Filesize
164KB

Download
memory/2576-141-0x0000000000EF0000-0x0000000000F19000-memory.dmp

Filesize
164KB

Download
memory/2576-138-0x0000000000000000-mapping.dmp

Download
memory/2576-150-0x0000000000EF0000-0x0000000000F19000-memory.dmp

Filesize
164KB

Download
memory/2576-142-0x0000000000EF0000-0x0000000000F19000-memory.dmp

Filesize
164KB

Download
memory/2576-139-0x0000000000EF0000-0x0000000000F19000-memory.dmp

Filesize
164KB

Download
memory/2576-155-0x0000000000F30000-0x0000000000F7E000-memory.dmp

Filesize
312KB

Download
memory/2576-156-0x0000000000F30000-0x0000000000F7E000-memory.dmp

Filesize
312KB

Download
memory/4888-132-0x0000000000000000-mapping.dmp

Download
memory/4888-147-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4888-133-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4912-135-0x0000000002170000-0x000000000218A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads