redline | 734ea8ecd523dc64cca5a8c4c0541bef85d30caff7c5f90c68071716ed1f9957

General

Target

Injector.exe
Size

2.6MB
MD5

1e927277321ea1ad6ea6adb21b93ecd8
SHA1

e9f631c34c72ba0ea2cba5e8a43a5e25971a7960
SHA256

734ea8ecd523dc64cca5a8c4c0541bef85d30caff7c5f90c68071716ed1f9957
SHA512

5f80620b7ead02fca31f65b3322a9bdbee5f17c53c5c4e957cef0c57246f1af25421a7dc8f81e1099f9a67b6d8c0da9eb09a78d5e3b7edad82be3b363aefc94f
SSDEEP

24576:eOuJEYEHyIvTv3YlYhIEY3uuMfqdKrRNFPVHKyako+LhVag+eyjtLjHuvLl3RuQi:LuJxESIvTscrDakXadeyjtGvLl3C

Score

10^/10

redline infostealer persistence spyware stealer upx

Malware Config

Extracted

Family

redline

C2

185.215.113.69:15544

Attributes

auth_value
f8fe4a8075f18f92567eec19f355197c

Signatures

Detects Redline Stealer samples 3 IoCs

This rule detects the presence of Redline Stealer samples based on their unique strings.

stealer

Processes:

resource	yara_rule
behavioral3/memory/100584-139-0x00000000054D0000-0x0000000005AE8000-memory.dmp	redline_stealer
behavioral3/memory/100584-148-0x0000000005EC0000-0x0000000005F26000-memory.dmp	redline_stealer
behavioral3/memory/100584-149-0x0000000006A40000-0x0000000006C02000-memory.dmp	redline_stealer

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
behavioral3/memory/100584-133-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline

Downloads MZ/PE file
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

chrome.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation chrome.exe
Executes dropped EXE 1 IoCs

Processes:

chrome.exe

pid process

101160 chrome.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	chrome.exe

pid	process
101160	chrome.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\chrome.exe	upx
C:\Users\Admin\AppData\Local\Temp\chrome.exe	upx
C:\Users\Admin\AppData\Local\Temp\chrome.exe	upx
behavioral3/memory/101160-167-0x0000000000BD0000-0x0000000000C09000-memory.dmp	upx
behavioral3/memory/101160-169-0x0000000000BD0000-0x0000000000C09000-memory.dmp	upx

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

chrome.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\taskhostww = "C:\\Users\\Admin\\AppData\\Roaming\\winlogonuii.exe"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	chrome.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of SetThreadContext 1 IoCs

Processes:

Injector.exe

description pid process target process

PID 2136 set thread context of 100584 2136 Injector.exe AppLaunch.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

101232 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

AppLaunch.exe

pid process

100584 AppLaunch.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

AppLaunch.exe

description pid process

Token: SeDebugPrivilege 100584 AppLaunch.exe

description	pid	process	target process
PID 2136 set thread context of 100584	2136	Injector.exe	AppLaunch.exe

pid	process
101232	schtasks.exe

pid	process
100584	AppLaunch.exe

description	pid	process
Token: SeDebugPrivilege	100584	AppLaunch.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Injector.exeAppLaunch.exechrome.exe

description	pid	process	target process
PID 2136 wrote to memory of 100584	2136	Injector.exe	AppLaunch.exe
PID 2136 wrote to memory of 100584	2136	Injector.exe	AppLaunch.exe
PID 2136 wrote to memory of 100584	2136	Injector.exe	AppLaunch.exe
PID 2136 wrote to memory of 100584	2136	Injector.exe	AppLaunch.exe
PID 2136 wrote to memory of 100584	2136	Injector.exe	AppLaunch.exe
PID 100584 wrote to memory of 101160	100584	AppLaunch.exe	chrome.exe
PID 100584 wrote to memory of 101160	100584	AppLaunch.exe	chrome.exe
PID 100584 wrote to memory of 101160	100584	AppLaunch.exe	chrome.exe
PID 101160 wrote to memory of 101232	101160	chrome.exe	schtasks.exe
PID 101160 wrote to memory of 101232	101160	chrome.exe	schtasks.exe
PID 101160 wrote to memory of 101232	101160	chrome.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Injector.exe
"C:\Users\Admin\AppData\Local\Temp\Injector.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2136

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:100584

C:\Users\Admin\AppData\Local\Temp\chrome.exe
"C:\Users\Admin\AppData\Local\Temp\chrome.exe"
3⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:101160

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "taskhostww" /tr C:\Users\Admin\AppData\Roaming\winlogonuii.exe /f
4⤵
- Creates scheduled task(s)
PID:101232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\chrome.exe
Filesize
94KB

MD5
fe16d658e483ffcac7917658d8474894

SHA1
2282b7a332c40e9b32ac9638e6de4b7b2e32937e

SHA256
24b71a7cbd16e5ac32dd092c83e703b7ccf127ac66b19afd44db7319c0360757

SHA512
25eb4aa769d1e17e7bc4bdde90901e1b7bd8938bba90ba0980f7c1ade143e8a25683cb3e1f775c2bca6494fd22626bcf0fe8a88a46eb5df10c4934e8a53c8a1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\chrome.exe
Filesize
94KB

MD5
fe16d658e483ffcac7917658d8474894

SHA1
2282b7a332c40e9b32ac9638e6de4b7b2e32937e

SHA256
24b71a7cbd16e5ac32dd092c83e703b7ccf127ac66b19afd44db7319c0360757

SHA512
25eb4aa769d1e17e7bc4bdde90901e1b7bd8938bba90ba0980f7c1ade143e8a25683cb3e1f775c2bca6494fd22626bcf0fe8a88a46eb5df10c4934e8a53c8a1f

Download Submit
C:\Users\Admin\AppData\Local\Temp\chrome.exe
Filesize
94KB

MD5
fe16d658e483ffcac7917658d8474894

SHA1
2282b7a332c40e9b32ac9638e6de4b7b2e32937e

SHA256
24b71a7cbd16e5ac32dd092c83e703b7ccf127ac66b19afd44db7319c0360757

SHA512
25eb4aa769d1e17e7bc4bdde90901e1b7bd8938bba90ba0980f7c1ade143e8a25683cb3e1f775c2bca6494fd22626bcf0fe8a88a46eb5df10c4934e8a53c8a1f

Download Submit
memory/2136-138-0x0000000000400000-0x000000000058C000-memory.dmp

Filesize
1.5MB

Download
memory/100584-143-0x0000000004F60000-0x0000000004F9C000-memory.dmp

Filesize
240KB

Download
memory/100584-148-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/100584-142-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/100584-144-0x00000000052C0000-0x0000000005336000-memory.dmp

Filesize
472KB

Download
memory/100584-145-0x0000000005340000-0x00000000053D2000-memory.dmp

Filesize
584KB

Download
memory/100584-146-0x00000000060A0000-0x0000000006644000-memory.dmp

Filesize
5.6MB

Download
memory/100584-147-0x0000000005490000-0x00000000054AE000-memory.dmp

Filesize
120KB

Download
memory/100584-133-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/100584-149-0x0000000006A40000-0x0000000006C02000-memory.dmp

Filesize
1.8MB

Download
memory/100584-150-0x0000000007140000-0x000000000766C000-memory.dmp

Filesize
5.2MB

Download
memory/100584-151-0x00000000052B0000-0x00000000052C0000-memory.dmp

Filesize
64KB

Download
memory/100584-141-0x0000000005030000-0x000000000513A000-memory.dmp

Filesize
1.0MB

Download
memory/100584-140-0x0000000004F00000-0x0000000004F12000-memory.dmp

Filesize
72KB

Download
memory/100584-139-0x00000000054D0000-0x0000000005AE8000-memory.dmp

Filesize
6.1MB

Download
memory/101160-167-0x0000000000BD0000-0x0000000000C09000-memory.dmp

Filesize
228KB

Download
memory/101160-169-0x0000000000BD0000-0x0000000000C09000-memory.dmp

Filesize
228KB

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Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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