redline | 535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3

General

Target

535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe
Size

3.5MB
MD5

bc1b52444399a05c9fc0e6fd67bfb59c
SHA1

137c3ed50b9cf53d67ac0929b08602df03f99eea
SHA256

535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3
SHA512

c8b5bfab495d284f66a2bdf3eb1521ffc05ec27b83e91e56419d134cab19f01c126eb532b2d46c90a480608469d7aca55ac91db678ab76148e63c0e9b3e74669

Score

10^/10

redline evasion infostealer themida trojan

Malware Config

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3724-136-0x00000000000C0000-0x0000000000956000-memory.dmp	family_redline

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3724-136-0x00000000000C0000-0x0000000000956000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

pid process

3724 535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe
Drops file in Windows directory 1 IoCs

Processes:

TiWorker.exe

description ioc process

File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Modifies data under HKEY_USERS 19 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

pid	process
3724	535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe
3724	535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

TiWorker.exe

description pid process

Token: SeSecurityPrivilege 3520 TiWorker.exe
Token: SeRestorePrivilege 3520 TiWorker.exe
Token: SeBackupPrivilege 3520 TiWorker.exe

description	pid	process
Token: SeSecurityPrivilege	3520	TiWorker.exe
Token: SeRestorePrivilege	3520	TiWorker.exe
Token: SeBackupPrivilege	3520	TiWorker.exe

C:\Users\Admin\AppData\Local\Temp\535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe
"C:\Users\Admin\AppData\Local\Temp\535469754bdf9703c3eef2d9a9f86c0335659b071f5606e87a5e450fe6aee9a3.exe"
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3724

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:2372

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:3952

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3724-130-0x0000000077280000-0x0000000077281000-memory.dmp

Filesize
4KB

Download
memory/3724-131-0x0000000077280000-0x0000000077281000-memory.dmp

Filesize
4KB

Download
memory/3724-134-0x00000000773D4000-0x00000000773D6000-memory.dmp

Filesize
8KB

Download
memory/3724-135-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/3724-136-0x00000000000C0000-0x0000000000956000-memory.dmp

Filesize
8.6MB

Download
memory/3724-137-0x0000000006420000-0x0000000006A38000-memory.dmp

Filesize
6.1MB

Download
memory/3724-138-0x0000000003210000-0x0000000003222000-memory.dmp

Filesize
72KB

Download
memory/3724-139-0x0000000005F10000-0x000000000601A000-memory.dmp

Filesize
1.0MB

Download
memory/3724-140-0x0000000005CF0000-0x0000000005CF1000-memory.dmp

Filesize
4KB

Download
memory/3724-141-0x0000000003270000-0x00000000032AC000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads