redline | b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57

General

Target

b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exe
Size

541KB
MD5

cf606a21fd97cb1fdb844526f9341167
SHA1

6526497f5fb86519bbe71b23f791187679e0b2e5
SHA256

b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57
SHA512

cd71158c321613c15bb7e2c5e15d5b92d3b9e9f003d0c86990497702c234418988917d09ebe595f38b65f9d1b1e81b52d2bd79a1e944699b6d5d0e66eb88ce5c

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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4176-139-0x0000000000E50000-0x0000000001C5A000-memory.dmp	family_redline
behavioral2/memory/4176-151-0x0000000000E50000-0x0000000001C5A000-memory.dmp	family_redline

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

lnchr.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ lnchr.exe
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

lnchr.exe

pid process

4176 lnchr.exe

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

pid	process
4176	lnchr.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:

lnchr.exe

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

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\lnchr.exe	themida
C:\Users\Admin\AppData\Roaming\lnchr.exe	themida
behavioral2/memory/4176-139-0x0000000000E50000-0x0000000001C5A000-memory.dmp	themida
behavioral2/memory/4176-151-0x0000000000E50000-0x0000000001C5A000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

lnchr.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA lnchr.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

lnchr.exe

pid process

4176 lnchr.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1200 taskkill.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

lnchr.exe

pid process

4176 lnchr.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

lnchr.exetaskkill.exe

description pid process

Token: SeDebugPrivilege 4176 lnchr.exe
Token: SeDebugPrivilege 1200 taskkill.exe

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

pid	process
4176	lnchr.exe

pid	process
1200	taskkill.exe

pid	process
4176	lnchr.exe

description	pid	process
Token: SeDebugPrivilege	4176	lnchr.exe
Token: SeDebugPrivilege	1200	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exelnchr.execmd.exe

description	pid	process	target process
PID 2636 wrote to memory of 4176	2636	b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exe	lnchr.exe
PID 2636 wrote to memory of 4176	2636	b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exe	lnchr.exe
PID 2636 wrote to memory of 4176	2636	b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exe	lnchr.exe
PID 4176 wrote to memory of 3860	4176	lnchr.exe	cmd.exe
PID 4176 wrote to memory of 3860	4176	lnchr.exe	cmd.exe
PID 4176 wrote to memory of 3860	4176	lnchr.exe	cmd.exe
PID 3860 wrote to memory of 1200	3860	cmd.exe	taskkill.exe
PID 3860 wrote to memory of 1200	3860	cmd.exe	taskkill.exe
PID 3860 wrote to memory of 1200	3860	cmd.exe	taskkill.exe
PID 3860 wrote to memory of 4680	3860	cmd.exe	choice.exe
PID 3860 wrote to memory of 4680	3860	cmd.exe	choice.exe
PID 3860 wrote to memory of 4680	3860	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exe
"C:\Users\Admin\AppData\Local\Temp\b2eb3021cbedb92df73aaf960a14c73f01ffc9b07f39e4052f679414ae983b57.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2636

C:\Users\Admin\AppData\Roaming\lnchr.exe
C:\Users\Admin\AppData\Roaming\lnchr.exe jdjsvbusje
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4176

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C taskkill /F /PID 4176 && choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Roaming\lnchr.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:3860

C:\Windows\SysWOW64\taskkill.exe
taskkill /F /PID 4176
4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1200

C:\Windows\SysWOW64\choice.exe
choice /C Y /N /D Y /T 3
4⤵
PID:4680

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\lnchr.exe
Filesize
2.1MB

MD5
a888775e94b3477988e4342e81fb4384

SHA1
142f31918ac691851881b39a870e2a8c2f71ac76

SHA256
612b4bf447ae37ff9677c9818f6a70833206ecddbd06246f4c9b3f2151d15302

SHA512
0791fbbc4223e32c6854623676744d47ac3e4e53084fba19dcdc9968ef581aaaf1d8f190a42ee6e651d407ed9b9d7b3df57dc18fb55add967cca12ff4b257835

Download Submit
C:\Users\Admin\AppData\Roaming\lnchr.exe
Filesize
2.1MB

MD5
a888775e94b3477988e4342e81fb4384

SHA1
142f31918ac691851881b39a870e2a8c2f71ac76

SHA256
612b4bf447ae37ff9677c9818f6a70833206ecddbd06246f4c9b3f2151d15302

SHA512
0791fbbc4223e32c6854623676744d47ac3e4e53084fba19dcdc9968ef581aaaf1d8f190a42ee6e651d407ed9b9d7b3df57dc18fb55add967cca12ff4b257835

Download Submit
memory/1200-149-0x0000000000000000-mapping.dmp

Download
memory/2636-146-0x0000000140000000-0x0000000140168000-memory.dmp

Filesize
1.4MB

Download
memory/2636-153-0x0000000140000000-0x0000000140168000-memory.dmp

Filesize
1.4MB

Download
memory/2636-130-0x0000000140000000-0x0000000140168000-memory.dmp

Filesize
1.4MB

Download
memory/3860-148-0x0000000000000000-mapping.dmp

Download
memory/4176-136-0x00000000773E0000-0x0000000077583000-memory.dmp

Filesize
1.6MB

Download
memory/4176-147-0x0000000006950000-0x0000000006A5A000-memory.dmp

Filesize
1.0MB

Download
memory/4176-142-0x0000000005D40000-0x0000000005DA6000-memory.dmp

Filesize
408KB

Download
memory/4176-143-0x0000000006E50000-0x0000000007468000-memory.dmp

Filesize
6.1MB

Download
memory/4176-144-0x0000000006140000-0x0000000006152000-memory.dmp

Filesize
72KB

Download
memory/4176-145-0x00000000061A0000-0x00000000061DC000-memory.dmp

Filesize
240KB

Download
memory/4176-140-0x0000000005BD0000-0x0000000005C62000-memory.dmp

Filesize
584KB

Download
memory/4176-141-0x0000000006280000-0x0000000006824000-memory.dmp

Filesize
5.6MB

Download
memory/4176-139-0x0000000000E50000-0x0000000001C5A000-memory.dmp

Filesize
14.0MB

Download
memory/4176-134-0x0000000000E50000-0x0000000001C5A000-memory.dmp

Filesize
14.0MB

Download
memory/4176-131-0x0000000000000000-mapping.dmp

Download
memory/4176-151-0x0000000000E50000-0x0000000001C5A000-memory.dmp

Filesize
14.0MB

Download
memory/4176-152-0x00000000773E0000-0x0000000077583000-memory.dmp

Filesize
1.6MB

Download
memory/4680-150-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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