3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2

General

Target

3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
Size

209KB
MD5

89c736dbc7d0ec3c9002af1e21c78c59
SHA1

5ec8c000e53a5482871140e13f228a2de719bb0b
SHA256

3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2
SHA512

890c25e8a82b0751900a5032225bfad1a0ab8aaaa72876d8835e154151b7b00ca7e1da25ff58830b5a8b425df4c9d3598a50994f35d3cdd333627e5595bf8d44
SSDEEP

3072:lqthA9554iwyv02BMI2m9GbL7+nnI6wGCwSncmuo8XihThl:lShAJ132aGAI6wG3Scmuo8XiRH

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/3492-136-0x0000000000400000-0x000000000042B000-memory.dmp	cryptone
behavioral2/memory/776-142-0x00000000005C0000-0x00000000005EB000-memory.dmp	cryptone
behavioral2/memory/776-143-0x00000000005C0000-0x00000000005EB000-memory.dmp	cryptone
behavioral2/memory/776-144-0x00000000005C0000-0x00000000005EB000-memory.dmp	cryptone
behavioral2/memory/3492-149-0x0000000000400000-0x000000000042B000-memory.dmp	cryptone
behavioral2/memory/1444-152-0x0000000000E70000-0x0000000000E9B000-memory.dmp	cryptone

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exemspaint.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe System Incorporated = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe\\Reader_sl.exe"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	mspaint.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yttitg = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Yttitg.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)	\??\I:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe
File opened (read-only)	\??\B:	svchost.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\F:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\D:	mspaint.exe
File opened (read-only)	\??\J:	svchost.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe

description	pid	process	target process
PID 672 set thread context of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 set thread context of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 set thread context of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe

Drops file in Program Files directory 1 IoCs

Processes:

svchost.exe

description ioc process

File opened for modification C:\Program Files\Common Files\CreativeAudio svchost.exe

description	ioc	process
File opened for modification	C:\Program Files\Common Files\CreativeAudio	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

svchost.exe3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe

pid	process
1444	svchost.exe
1444	svchost.exe
2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.execalc.exesvchost.exemspaint.exe

description	pid	process
Token: SeDebugPrivilege	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
Token: SeDebugPrivilege	1060	calc.exe
Token: SeDebugPrivilege	1444	svchost.exe
Token: SeDebugPrivilege	776	mspaint.exe

Suspicious use of WriteProcessMemory 46 IoCs

Processes:

3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exesvchost.exe3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe

description	pid	process	target process
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 672 wrote to memory of 2884	672	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2884 wrote to memory of 3492	2884	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 1444	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 3492 wrote to memory of 1444	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 3492 wrote to memory of 1444	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 3492 wrote to memory of 1444	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 3492 wrote to memory of 1444	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 3492 wrote to memory of 1060	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 3492 wrote to memory of 1060	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 3492 wrote to memory of 1060	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 3492 wrote to memory of 1060	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 3492 wrote to memory of 1060	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 1444 wrote to memory of 776	1444	svchost.exe	mspaint.exe
PID 1444 wrote to memory of 776	1444	svchost.exe	mspaint.exe
PID 1444 wrote to memory of 776	1444	svchost.exe	mspaint.exe
PID 1444 wrote to memory of 776	1444	svchost.exe	mspaint.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 3492 wrote to memory of 2328	3492	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
PID 2328 wrote to memory of 1060	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 2328 wrote to memory of 1060	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	calc.exe
PID 2328 wrote to memory of 1444	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 2328 wrote to memory of 1444	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	svchost.exe
PID 2328 wrote to memory of 776	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	mspaint.exe
PID 2328 wrote to memory of 776	2328	3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe	mspaint.exe

C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
"C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:672

C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
"C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2884

C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
"C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3492

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
4⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1444

C:\Windows\SysWOW64\mspaint.exe
"C:\Windows\SysWOW64\mspaint.exe"
5⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
PID:776

C:\Windows\SysWOW64\calc.exe
"C:\Windows\SysWOW64\calc.exe"
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1060

C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe
"C:\Users\Admin\AppData\Local\Temp\3c89b44aefb48d3458ec2de81a1f00564ef40e8ce5015b3e94cd320bcd9a9de2.exe"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/776-142-0x00000000005C0000-0x00000000005EB000-memory.dmp

Filesize
172KB

Download
memory/776-158-0x0000000000810000-0x000000000085E000-memory.dmp

Filesize
312KB

Download
memory/776-157-0x0000000000810000-0x000000000085E000-memory.dmp

Filesize
312KB

Download
memory/776-153-0x00000000005C0000-0x00000000005EB000-memory.dmp

Filesize
172KB

Download
memory/776-144-0x00000000005C0000-0x00000000005EB000-memory.dmp

Filesize
172KB

Download
memory/776-143-0x00000000005C0000-0x00000000005EB000-memory.dmp

Filesize
172KB

Download
memory/776-145-0x00000000005C0000-0x00000000005EB000-memory.dmp

Filesize
172KB

Download
memory/776-141-0x0000000000000000-mapping.dmp

Download
memory/1060-140-0x0000000000000000-mapping.dmp

Download
memory/1060-155-0x0000000002B30000-0x0000000002B7E000-memory.dmp

Filesize
312KB

Download
memory/1444-152-0x0000000000E70000-0x0000000000E9B000-memory.dmp

Filesize
172KB

Download
memory/1444-139-0x0000000000000000-mapping.dmp

Download
memory/1444-156-0x0000000000EC0000-0x0000000000F0E000-memory.dmp

Filesize
312KB

Download
memory/2328-150-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2328-151-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2328-147-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2328-154-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2328-146-0x0000000000000000-mapping.dmp

Download
memory/2884-132-0x0000000000000000-mapping.dmp

Download
memory/2884-138-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2884-133-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3492-149-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3492-136-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3492-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads