darkstealer | 729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6

General

Target

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
Size

1.7MB
MD5

caea94dab0c8720bd97447d7f9e1ecb8
SHA1

f3eb2519d75901b6c8fc6107bd354b013e6a0b71
SHA256

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6
SHA512

7752ae0ca4cece6e444af17c50c5cd2226f4c051674286529bf23c4e9f540455e54d969ab2988a7c580beb88be515bf59494b81516a3f9faafe6514123f9ecdb

Score

10^/10

darkstealer echelon backdoor bootkit collection discovery evasion persistence spyware stealer trojan

Malware Config

Signatures

Darkstealer
Darkstealer is a file grabber, data stealer, and RAT.
trojan backdoor darkstealer
Echelon
Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.
stealer spyware echelon

Echelon - DarkStealer Fork 2 IoCs

Payload resembles modified variant of Echelon Stealer called DarkStealer.

stealer

Processes:

resource	yara_rule
behavioral1/memory/1980-55-0x0000000000400000-0x00000000007B2000-memory.dmp	echelon_darkstealer
behavioral1/memory/1980-56-0x0000000000400000-0x00000000007B2000-memory.dmp	echelon_darkstealer

Echelon log file 1 IoCs

Detects a log file produced by Echelon.

Processes:

yara_rule
echelon_log_file

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Identifies Wine through registry keys 2 TTPs 1 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:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Wine	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Looks up external IP address via web service 5 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
3	api.ipify.org
4	api.ipify.org
5	ip-api.com
7	api.ipify.org
8	api.ipify.org

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

pid	Process
1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1692	1980	WerFault.exe	26

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

pid	Process
1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	pid	Process
Token: SeDebugPrivilege	1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	pid	Process	procid_target
PID 1980 wrote to memory of 1692	1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe	28
PID 1980 wrote to memory of 1692	1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe	28
PID 1980 wrote to memory of 1692	1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe	28
PID 1980 wrote to memory of 1692	1980	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe	28

outlook_office_path 1 IoCs

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

outlook_win_path 1 IoCs

Processes:

729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe

C:\Users\Admin\AppData\Local\Temp\729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe
"C:\Users\Admin\AppData\Local\Temp\729e19020c7b7a3d9bc9f9bdbb69fc32351ade4228e08ebb04de2da5e6b4bdf6.exe"
1⤵
- Identifies Wine through registry keys
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1980 -s 1312
  2⤵
  - Program crash
  PID:1692

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

1

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1692-58-0x0000000000000000-mapping.dmp

Download
memory/1980-54-0x00000000768D1000-0x00000000768D3000-memory.dmp

Filesize
8KB

Download
memory/1980-55-0x0000000000400000-0x00000000007B2000-memory.dmp

Filesize
3.7MB

Download
memory/1980-56-0x0000000000400000-0x00000000007B2000-memory.dmp

Filesize
3.7MB

Download
memory/1980-57-0x0000000077920000-0x0000000077AA0000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads