stealc | e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5

General

Target

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe
Size

14.1MB
MD5

5d0b96b2f2610709f046780420ab2ccc
SHA1

9980ca77ad2e5eae32733c1d6df05f878e092e5a
SHA256

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5
SHA512

dae781d02638da51f353cc66b8cdd6d759e2987a21cc7f02baa432a94bc9c977426c61ffe0f06d1cfa60a3f8d0e10e16fe3ada78affe1c8921b52ac3a85889f8
SSDEEP

98304:yvMsbagKjC8xLKyAGN3W2+vVdL2uMXJsuLfMhj0+N0R/EKbMkZfmTUTAMs:MfK/eyAGN3UvVd0XJsOfMhjQRcKCdMs

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 6 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/64-5-0x0000000000840000-0x0000000000A88000-memory.dmp	family_vidar_v7
behavioral2/memory/64-7-0x0000000000840000-0x0000000000A88000-memory.dmp	family_vidar_v7
behavioral2/memory/64-9-0x0000000000840000-0x0000000000A88000-memory.dmp	family_vidar_v7
behavioral2/memory/64-10-0x0000000000840000-0x0000000000A88000-memory.dmp	family_vidar_v7
behavioral2/memory/64-11-0x0000000000840000-0x0000000000A88000-memory.dmp	family_vidar_v7
behavioral2/memory/64-12-0x0000000000840000-0x0000000000A88000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Detects Windows executables referencing non-Windows User-Agents 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/64-5-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/64-7-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/64-9-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/64-10-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/64-11-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/64-12-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/64-5-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/64-7-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/64-9-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/64-10-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/64-11-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/64-12-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables containing potential Windows Defender anti-emulation checks 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/64-5-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/64-7-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/64-9-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/64-10-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/64-11-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/64-12-0x0000000000840000-0x0000000000A88000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation

Suspicious use of SetThreadContext 1 IoCs

Processes:

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe

description	pid	process	target process
PID 2972 set thread context of 64	2972	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe

Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

BitLockerToGo.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString BitLockerToGo.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1640 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

BitLockerToGo.exe

pid process

64 BitLockerToGo.exe
64 BitLockerToGo.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	BitLockerToGo.exe

pid	process
1640	timeout.exe

pid	process
64	BitLockerToGo.exe
64	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exeBitLockerToGo.execmd.exe

description	pid	process	target process
PID 2972 wrote to memory of 64	2972	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2972 wrote to memory of 64	2972	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2972 wrote to memory of 64	2972	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2972 wrote to memory of 64	2972	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2972 wrote to memory of 64	2972	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 64 wrote to memory of 3020	64	BitLockerToGo.exe	cmd.exe
PID 64 wrote to memory of 3020	64	BitLockerToGo.exe	cmd.exe
PID 64 wrote to memory of 3020	64	BitLockerToGo.exe	cmd.exe
PID 3020 wrote to memory of 1640	3020	cmd.exe	timeout.exe
PID 3020 wrote to memory of 1640	3020	cmd.exe	timeout.exe
PID 3020 wrote to memory of 1640	3020	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe
"C:\Users\Admin\AppData\Local\Temp\e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2972

C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
2⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:64

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe" & rd /s /q "C:\ProgramData\JDAKJJDBGCAK" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:1640

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/64-5-0x0000000000840000-0x0000000000A88000-memory.dmp

Filesize
2.3MB

Download
memory/64-7-0x0000000000840000-0x0000000000A88000-memory.dmp

Filesize
2.3MB

Download
memory/64-9-0x0000000000840000-0x0000000000A88000-memory.dmp

Filesize
2.3MB

Download
memory/64-10-0x0000000000840000-0x0000000000A88000-memory.dmp

Filesize
2.3MB

Download
memory/64-11-0x0000000000840000-0x0000000000A88000-memory.dmp

Filesize
2.3MB

Download
memory/64-12-0x0000000000840000-0x0000000000A88000-memory.dmp

Filesize
2.3MB

Download
memory/2972-4-0x00007FF68D580000-0x00007FF68E40C000-memory.dmp

Filesize
14.5MB

Download
memory/2972-8-0x00007FF68D580000-0x00007FF68E40C000-memory.dmp

Filesize
14.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads