cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6

General

Target

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
Size

223KB
MD5

6dfefdaaf5b50396d5d15b22144ba8b0
SHA1

a836af9b9d4c3313ca26ccfbaa07025279955301
SHA256

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6
SHA512

8f58c6ac39f1a284a5fe4321f6b7d867c64d2bcd1b38e0b337159899c258cbd726429e0e5d448ce01a4647b61e7ebae52cebb2001fb98b8e0df2be771fc1b05c
SSDEEP

3072:jp7kXNyzoU0AVKzyA6EfGo9dM+4cvZvI+NZq3zLG93CWkEH:jxCNa8AWfJ9UcvFI+NZ0LG93CoH

Score

9^/10

cryptone packer persistence

Malware Config

Signatures

CryptOne packer 8 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
behavioral2/memory/3896-134-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/3896-141-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/4176-142-0x0000000000D30000-0x0000000000D59000-memory.dmp	cryptone
behavioral2/memory/640-144-0x0000000001040000-0x0000000001069000-memory.dmp	cryptone
behavioral2/memory/640-143-0x0000000001040000-0x0000000001069000-memory.dmp	cryptone
behavioral2/memory/640-145-0x0000000001040000-0x0000000001069000-memory.dmp	cryptone
behavioral2/memory/3896-150-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/4176-154-0x0000000000D30000-0x0000000000D59000-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-1-5-21-2295526160-1155304984-640977766-1000\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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rhqlqc = "C:\\Users\\Admin\\AppData\\Roaming\\Identities\\Rhqlqc.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)	\??\Y:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\F:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\Z:	svchost.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\D:	mspaint.exe
File opened (read-only)	\??\B:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.execf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

description	pid	process	target process
PID 4688 set thread context of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 set thread context of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exesvchost.execf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

pid	process
4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
4176	svchost.exe
4176	svchost.exe
3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

pid process

3896 cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

pid	process
3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exesvchost.execalc.exemspaint.exe

description	pid	process
Token: SeDebugPrivilege	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
Token: SeDebugPrivilege	4176	svchost.exe
Token: SeDebugPrivilege	4028	calc.exe
Token: SeDebugPrivilege	640	mspaint.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.execf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exesvchost.execf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe

description	pid	process	target process
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 4688 wrote to memory of 3896	4688	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 4176	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	svchost.exe
PID 3896 wrote to memory of 4176	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	svchost.exe
PID 3896 wrote to memory of 4176	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	svchost.exe
PID 3896 wrote to memory of 4176	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	svchost.exe
PID 3896 wrote to memory of 4028	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 3896 wrote to memory of 4028	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 3896 wrote to memory of 4028	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 3896 wrote to memory of 4028	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 3896 wrote to memory of 4028	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 4176 wrote to memory of 640	4176	svchost.exe	mspaint.exe
PID 4176 wrote to memory of 640	4176	svchost.exe	mspaint.exe
PID 4176 wrote to memory of 640	4176	svchost.exe	mspaint.exe
PID 4176 wrote to memory of 640	4176	svchost.exe	mspaint.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3896 wrote to memory of 3476	3896	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
PID 3476 wrote to memory of 4176	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	svchost.exe
PID 3476 wrote to memory of 4176	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	svchost.exe
PID 3476 wrote to memory of 4028	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 3476 wrote to memory of 4028	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	calc.exe
PID 3476 wrote to memory of 640	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	mspaint.exe
PID 3476 wrote to memory of 640	3476	cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe	mspaint.exe

C:\Users\Admin\AppData\Local\Temp\cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
"C:\Users\Admin\AppData\Local\Temp\cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4688

C:\Users\Admin\AppData\Local\Temp\cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
"C:\Users\Admin\AppData\Local\Temp\cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3896

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:4176

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:640

C:\Windows\SysWOW64\calc.exe
"C:\Windows\SysWOW64\calc.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4028

C:\Users\Admin\AppData\Local\Temp\cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe
"C:\Users\Admin\AppData\Local\Temp\cf23e914d1f70edb1b9fdcc995431c6310fa023565b3e96d1cf4dac84bc3dcd6.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/640-144-0x0000000001040000-0x0000000001069000-memory.dmp

Filesize
164KB

Download
memory/640-159-0x0000000001080000-0x00000000010CE000-memory.dmp

Filesize
312KB

Download
memory/640-158-0x0000000001080000-0x00000000010CE000-memory.dmp

Filesize
312KB

Download
memory/640-153-0x0000000001040000-0x0000000001069000-memory.dmp

Filesize
164KB

Download
memory/640-145-0x0000000001040000-0x0000000001069000-memory.dmp

Filesize
164KB

Download
memory/640-146-0x0000000001040000-0x0000000001069000-memory.dmp

Filesize
164KB

Download
memory/640-143-0x0000000001040000-0x0000000001069000-memory.dmp

Filesize
164KB

Download
memory/640-140-0x0000000000000000-mapping.dmp

Download
memory/3476-152-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3476-155-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3476-151-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3476-148-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3476-147-0x0000000000000000-mapping.dmp

Download
memory/3896-133-0x0000000000000000-mapping.dmp

Download
memory/3896-150-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3896-141-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3896-134-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4028-157-0x0000000002540000-0x000000000258E000-memory.dmp

Filesize
312KB

Download
memory/4028-139-0x0000000000000000-mapping.dmp

Download
memory/4176-156-0x0000000000D70000-0x0000000000DBE000-memory.dmp

Filesize
312KB

Download
memory/4176-154-0x0000000000D30000-0x0000000000D59000-memory.dmp

Filesize
164KB

Download
memory/4176-142-0x0000000000D30000-0x0000000000D59000-memory.dmp

Filesize
164KB

Download
memory/4176-138-0x0000000000000000-mapping.dmp

Download
memory/4688-137-0x00000000005B0000-0x00000000005C4000-memory.dmp

Filesize
80KB

Download
memory/4688-135-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/4688-132-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads