d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8

General

Target

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
Size

3.3MB
MD5

f402c0307b58cfdf41835eb11df774ec
SHA1

7000c5f2bc10a560c799665a1fa381b58fd8fa1e
SHA256

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8
SHA512

5e0f77c858cf16b3590a989645712f60ce0c4d0d1dc3e7b8c5763006c399629f9c2c06d2a12ae908ce4c6c4ace599d89634a7e0d71acc53188908d97fc138613

Score

10^/10

evasion persistence suricata

Malware Config

Signatures

suricata: ET MALWARE DCRat Initial CnC Activity
suricata: ET MALWARE DCRat Initial CnC Activity
suricata
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 1 IoCs

Processes:

svchost32.exe

pid process

996 svchost32.exe

pid	process
996	svchost32.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exesvchost32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

Drops startup file 2 IoCs

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dotNET.lnk	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Sysdll32.lnk	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exesvchost32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Wine	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Wine	svchost32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\scrss = "C:\\Users\\Admin\\AppData\\Roaming\\dotNET.lnk"	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wininit = "C:\\Users\\Admin\\Sysdll32.lnk"	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exesvchost32.exe

pid process

2124 d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
996 svchost32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4124 996 WerFault.exe svchost32.exe

pid	pid_target	process	target process
4124	996	WerFault.exe	svchost32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exesvchost32.exe

pid	process
2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
996	svchost32.exe
996	svchost32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exesvchost32.exe

description	pid	process
Token: SeDebugPrivilege	2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
Token: SeDebugPrivilege	996	svchost32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe

description	pid	process	target process
PID 2124 wrote to memory of 996	2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe	svchost32.exe
PID 2124 wrote to memory of 996	2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe	svchost32.exe
PID 2124 wrote to memory of 996	2124	d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe	svchost32.exe

C:\Users\Admin\AppData\Local\Temp\d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe
"C:\Users\Admin\AppData\Local\Temp\d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Drops startup file
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2124

C:\Users\Admin\AppData\Roaming\svchost32.exe
"C:\Users\Admin\AppData\Roaming\svchost32.exe"
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 996 -s 1876
3⤵
- Program crash
PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 996 -ip 996
1⤵
PID:3140

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\svchost32.exe

Filesize
3.3MB

MD5
f402c0307b58cfdf41835eb11df774ec

SHA1
7000c5f2bc10a560c799665a1fa381b58fd8fa1e

SHA256
d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8

SHA512
5e0f77c858cf16b3590a989645712f60ce0c4d0d1dc3e7b8c5763006c399629f9c2c06d2a12ae908ce4c6c4ace599d89634a7e0d71acc53188908d97fc138613

Download Submit
C:\Users\Admin\AppData\Roaming\svchost32.exe

Filesize
3.3MB

MD5
f402c0307b58cfdf41835eb11df774ec

SHA1
7000c5f2bc10a560c799665a1fa381b58fd8fa1e

SHA256
d2c34c179cf1892e5b8c6243db348d09090c14622dd069589f21fef3d2c171a8

SHA512
5e0f77c858cf16b3590a989645712f60ce0c4d0d1dc3e7b8c5763006c399629f9c2c06d2a12ae908ce4c6c4ace599d89634a7e0d71acc53188908d97fc138613

Download Submit
memory/996-136-0x0000000000000000-mapping.dmp

Download
memory/996-139-0x0000000000520000-0x0000000000CCA000-memory.dmp

Filesize
7.7MB

Download
memory/996-140-0x0000000000520000-0x0000000000CCA000-memory.dmp

Filesize
7.7MB

Download
memory/996-141-0x0000000077130000-0x00000000772D3000-memory.dmp

Filesize
1.6MB

Download
memory/2124-130-0x0000000077130000-0x00000000772D3000-memory.dmp

Filesize
1.6MB

Download
memory/2124-131-0x0000000000690000-0x0000000000E3A000-memory.dmp

Filesize
7.7MB

Download
memory/2124-132-0x0000000000690000-0x0000000000E3A000-memory.dmp

Filesize
7.7MB

Download
memory/2124-133-0x0000000007FB0000-0x0000000008554000-memory.dmp

Filesize
5.6MB

Download
memory/2124-134-0x0000000007A80000-0x0000000007AF6000-memory.dmp

Filesize
472KB

Download
memory/2124-135-0x00000000085B0000-0x00000000085CE000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads