stealc | e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-06-2024 02:38

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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 spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

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 10 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2624-11-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-12-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-8-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	family_vidar_v7
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-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

Detect binaries embedding considerable number of MFA browser extension IDs. 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs

Detects Windows executables referencing non-Windows User-Agents 10 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2624-11-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-12-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-8-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 10 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2624-11-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-12-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-8-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables containing potential Windows Defender anti-emulation checks 10 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2624-11-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-12-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-8-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral1/memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation

Downloads MZ/PE file
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

Processes:

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe

description	pid	process	target process
PID 2276 set thread context of 2624	2276	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

908 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

BitLockerToGo.exe

pid process

2624 BitLockerToGo.exe
2624 BitLockerToGo.exe

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

pid	process
908	timeout.exe

pid	process
2624	BitLockerToGo.exe
2624	BitLockerToGo.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exeBitLockerToGo.execmd.exe

description	pid	process	target process
PID 2276 wrote to memory of 2624	2276	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2276 wrote to memory of 2624	2276	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2276 wrote to memory of 2624	2276	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2276 wrote to memory of 2624	2276	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2276 wrote to memory of 2624	2276	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2276 wrote to memory of 2624	2276	e9edfb560307e1bd40f575a8dc1d9835e13059388cfb72ffbbe8aefc99d7fbf5.exe	BitLockerToGo.exe
PID 2624 wrote to memory of 1940	2624	BitLockerToGo.exe	cmd.exe
PID 2624 wrote to memory of 1940	2624	BitLockerToGo.exe	cmd.exe
PID 2624 wrote to memory of 1940	2624	BitLockerToGo.exe	cmd.exe
PID 2624 wrote to memory of 1940	2624	BitLockerToGo.exe	cmd.exe
PID 1940 wrote to memory of 908	1940	cmd.exe	timeout.exe
PID 1940 wrote to memory of 908	1940	cmd.exe	timeout.exe
PID 1940 wrote to memory of 908	1940	cmd.exe	timeout.exe
PID 1940 wrote to memory of 908	1940	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:2276

C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
2⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2624

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AKKEGHJDHDAF" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:908

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar5A47.tmp
Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2276-13-0x000000013F950000-0x00000001407DC000-memory.dmp

Filesize
14.5MB

Download
memory/2276-5-0x000000013F950000-0x00000001407DC000-memory.dmp

Filesize
14.5MB

Download
memory/2276-2-0x000000013F950000-0x00000001407DC000-memory.dmp

Filesize
14.5MB

Download
memory/2624-12-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-8-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-11-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-6-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-166-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-187-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-209-0x0000000019380000-0x00000000195DF000-memory.dmp

Filesize
2.4MB

Download
memory/2624-220-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-241-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-433-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-454-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download
memory/2624-495-0x00000000001A0000-0x00000000003E8000-memory.dmp

Filesize
2.3MB

Download