darkstealer | f8cad8601b4d97cbe6befe13fce900eaa01063283a91ffae28038c9370f7b582

General

Target

e09b3349afedd9bc6713f0640dac5a73.exe
Size

3.7MB
MD5

e09b3349afedd9bc6713f0640dac5a73
SHA1

2bed69865fce75b42da5f53b02d74eaba01f7819
SHA256

f8cad8601b4d97cbe6befe13fce900eaa01063283a91ffae28038c9370f7b582
SHA512

48ed49531d29f503f1c8f25ab278de851560576aca96baa521b0c1b1b6b2887ba6c6d71cbed0049faaeb1c4c8b531b186f7eba5cd141ae1ececafc3aa280a213
SSDEEP

98304:VG0WE8JkdS9cHaXMsbNWhYq3bdckunUnU63:fvNIc6XyYq3bHtX

Score

10^/10

darkstealer echelon backdoor collection evasion spyware stealer themida trojan

Malware Config

Signatures

Darkstealer
Darkstealer is a file grabber, data stealer, and RAT.
trojan backdoor darkstealer

Detects Echelon Stealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3268-13-0x00000000000B0000-0x0000000000A4E000-memory.dmp	family_echelon
behavioral2/memory/3268-14-0x00000000000B0000-0x0000000000A4E000-memory.dmp	family_echelon
behavioral2/memory/3268-51-0x00000000000B0000-0x0000000000A4E000-memory.dmp	family_echelon

Echelon
Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.
stealer spyware echelon

Echelon - DarkStealer Fork 3 IoCs

Payload resembles modified variant of Echelon Stealer called DarkStealer.

stealer

Processes:

resource	yara_rule
behavioral2/memory/3268-13-0x00000000000B0000-0x0000000000A4E000-memory.dmp	echelon_darkstealer
behavioral2/memory/3268-14-0x00000000000B0000-0x0000000000A4E000-memory.dmp	echelon_darkstealer
behavioral2/memory/3268-51-0x00000000000B0000-0x0000000000A4E000-memory.dmp	echelon_darkstealer

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ e09b3349afedd9bc6713f0640dac5a73.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	e09b3349afedd9bc6713f0640dac5a73.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	e09b3349afedd9bc6713f0640dac5a73.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	e09b3349afedd9bc6713f0640dac5a73.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
T1552.001

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3268-13-0x00000000000B0000-0x0000000000A4E000-memory.dmp	themida
behavioral2/memory/3268-14-0x00000000000B0000-0x0000000000A4E000-memory.dmp	themida
behavioral2/memory/3268-51-0x00000000000B0000-0x0000000000A4E000-memory.dmp	themida

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e09b3349afedd9bc6713f0640dac5a73.exe
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e09b3349afedd9bc6713f0640dac5a73.exe
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e09b3349afedd9bc6713f0640dac5a73.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	e09b3349afedd9bc6713f0640dac5a73.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

pid process

3268 e09b3349afedd9bc6713f0640dac5a73.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2812 3268 WerFault.exe e09b3349afedd9bc6713f0640dac5a73.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

pid process

3268 e09b3349afedd9bc6713f0640dac5a73.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description pid process

Token: SeDebugPrivilege 3268 e09b3349afedd9bc6713f0640dac5a73.exe

pid	process
3268	e09b3349afedd9bc6713f0640dac5a73.exe

pid	pid_target	process	target process
2812	3268	WerFault.exe	e09b3349afedd9bc6713f0640dac5a73.exe

pid	process
3268	e09b3349afedd9bc6713f0640dac5a73.exe

description	pid	process
Token: SeDebugPrivilege	3268	e09b3349afedd9bc6713f0640dac5a73.exe

outlook_office_path 1 IoCs

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e09b3349afedd9bc6713f0640dac5a73.exe

outlook_win_path 1 IoCs

Processes:

e09b3349afedd9bc6713f0640dac5a73.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e09b3349afedd9bc6713f0640dac5a73.exe

C:\Users\Admin\AppData\Local\Temp\e09b3349afedd9bc6713f0640dac5a73.exe
"C:\Users\Admin\AppData\Local\Temp\e09b3349afedd9bc6713f0640dac5a73.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 1892
  2⤵
  - Program crash
  PID:2812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3268 -ip 3268
1⤵
PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3268-0-0x00000000000B0000-0x0000000000A4E000-memory.dmp

Filesize
9.6MB

Download
memory/3268-1-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-2-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-4-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-3-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-5-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-6-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-8-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-10-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download
memory/3268-11-0x0000000077674000-0x0000000077676000-memory.dmp

Filesize
8KB

Download
memory/3268-13-0x00000000000B0000-0x0000000000A4E000-memory.dmp

Filesize
9.6MB

Download
memory/3268-14-0x00000000000B0000-0x0000000000A4E000-memory.dmp

Filesize
9.6MB

Download
memory/3268-15-0x00000000056A0000-0x0000000005706000-memory.dmp

Filesize
408KB

Download
memory/3268-21-0x0000000005EF0000-0x0000000005F8C000-memory.dmp

Filesize
624KB

Download
memory/3268-45-0x0000000006260000-0x00000000062F2000-memory.dmp

Filesize
584KB

Download
memory/3268-46-0x0000000006C50000-0x00000000071F4000-memory.dmp

Filesize
5.6MB

Download
memory/3268-51-0x00000000000B0000-0x0000000000A4E000-memory.dmp

Filesize
9.6MB

Download
memory/3268-52-0x0000000076670000-0x0000000076760000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads