375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8

General

Target

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
Size

256KB
MD5

ec08ac2c11b145a3726362fad2cf5cdb
SHA1

e855a457e9909b779a1788021f0e4f3cf754bc4a
SHA256

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8
SHA512

4968b0356c659f0ce0590fd7d748235a86496d302846fa9e406dfcabf4e036e81afff989e19bad5ea39286806db713c226a06e838dbd4cf6bd0a21289a6cfc66
SSDEEP

3072:LWVQPp7D5oz04Xd6aiSsHEAyFvVi/4z3MoqOipOdtoGgOccmFlxFILj2:LxPp7V74tUCV+oqH6J3mFlp

Score

9^/10

cryptone packer persistence

Malware Config

Signatures

CryptOne packer 7 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
behavioral2/memory/4548-134-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/4548-138-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone
behavioral2/memory/3628-139-0x0000000000BD0000-0x0000000000BF9000-memory.dmp	cryptone
behavioral2/memory/2876-141-0x0000000000D60000-0x0000000000D89000-memory.dmp	cryptone
behavioral2/memory/2876-143-0x0000000000D60000-0x0000000000D89000-memory.dmp	cryptone
behavioral2/memory/2876-142-0x0000000000D60000-0x0000000000D89000-memory.dmp	cryptone
behavioral2/memory/4548-150-0x0000000000400000-0x0000000000429000-memory.dmp	cryptone

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mspaint.exesvchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xhoiof = "C:\\Users\\Admin\\AppData\\Roaming\\Identities\\Xhoiof.exe"	mspaint.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe System Incorporated = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe\\Reader_sl.exe"	svchost.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)	\??\H:	svchost.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\X:	svchost.exe
File opened (read-only)	\??\B:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\D:	mspaint.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe
File opened (read-only)	\??\Z:	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)	\??\O:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\W:	svchost.exe
File opened (read-only)	\??\Y:	svchost.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

description	pid	process	target process
PID 1684 set thread context of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 set thread context of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exesvchost.exe375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

pid	process
1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
3628	svchost.exe
3628	svchost.exe
3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

pid process

4548 375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

pid	process
4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exesvchost.exemspaint.execalc.exe

description	pid	process
Token: SeDebugPrivilege	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
Token: SeDebugPrivilege	3628	svchost.exe
Token: SeDebugPrivilege	2876	mspaint.exe
Token: SeDebugPrivilege	3544	calc.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exesvchost.exe375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe

description	pid	process	target process
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 1684 wrote to memory of 4548	1684	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3628	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	svchost.exe
PID 4548 wrote to memory of 3628	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	svchost.exe
PID 4548 wrote to memory of 3628	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	svchost.exe
PID 4548 wrote to memory of 3628	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	svchost.exe
PID 4548 wrote to memory of 3544	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 4548 wrote to memory of 3544	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 4548 wrote to memory of 3544	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 4548 wrote to memory of 3544	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 4548 wrote to memory of 3544	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 3628 wrote to memory of 2876	3628	svchost.exe	mspaint.exe
PID 3628 wrote to memory of 2876	3628	svchost.exe	mspaint.exe
PID 3628 wrote to memory of 2876	3628	svchost.exe	mspaint.exe
PID 3628 wrote to memory of 2876	3628	svchost.exe	mspaint.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 4548 wrote to memory of 3580	4548	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
PID 3580 wrote to memory of 3628	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	svchost.exe
PID 3580 wrote to memory of 3628	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	svchost.exe
PID 3580 wrote to memory of 3544	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 3580 wrote to memory of 3544	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	calc.exe
PID 3580 wrote to memory of 2876	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	mspaint.exe
PID 3580 wrote to memory of 2876	3580	375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe	mspaint.exe

C:\Users\Admin\AppData\Local\Temp\375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
"C:\Users\Admin\AppData\Local\Temp\375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1684

C:\Users\Admin\AppData\Local\Temp\375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
"C:\Users\Admin\AppData\Local\Temp\375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4548

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:3628

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:2876

C:\Windows\SysWOW64\calc.exe
"C:\Windows\SysWOW64\calc.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3544

C:\Users\Admin\AppData\Local\Temp\375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe
"C:\Users\Admin\AppData\Local\Temp\375b935c8ee0e9819b4b636fee2b6b5175e7313cf5d5c8d48cb85d66dfd94af8.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3580

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/1684-132-0x00000000004E0000-0x00000000004F4000-memory.dmp

Filesize
80KB

Download
memory/2876-143-0x0000000000D60000-0x0000000000D89000-memory.dmp

Filesize
164KB

Download
memory/2876-157-0x0000000002C40000-0x0000000002C8E000-memory.dmp

Filesize
312KB

Download
memory/2876-155-0x0000000002C40000-0x0000000002C8E000-memory.dmp

Filesize
312KB

Download
memory/2876-148-0x0000000000D60000-0x0000000000D89000-memory.dmp

Filesize
164KB

Download
memory/2876-142-0x0000000000D60000-0x0000000000D89000-memory.dmp

Filesize
164KB

Download
memory/2876-144-0x0000000000D60000-0x0000000000D89000-memory.dmp

Filesize
164KB

Download
memory/2876-140-0x0000000000000000-mapping.dmp

Download
memory/2876-141-0x0000000000D60000-0x0000000000D89000-memory.dmp

Filesize
164KB

Download
memory/3544-137-0x0000000000000000-mapping.dmp

Download
memory/3544-154-0x0000000002510000-0x000000000255E000-memory.dmp

Filesize
312KB

Download
memory/3580-153-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3580-145-0x0000000000000000-mapping.dmp

Download
memory/3580-146-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3580-149-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3580-151-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3628-139-0x0000000000BD0000-0x0000000000BF9000-memory.dmp

Filesize
164KB

Download
memory/3628-152-0x0000000000E10000-0x0000000000E5E000-memory.dmp

Filesize
312KB

Download
memory/3628-136-0x0000000000000000-mapping.dmp

Download
memory/3628-156-0x0000000000E10000-0x0000000000E5E000-memory.dmp

Filesize
312KB

Download
memory/4548-150-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4548-138-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4548-134-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4548-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads