redline | a1ccb714dc5a49c230ecf1b86239f9983024777d3ae1dbd42971b93fba4036e4

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2023 07:41

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General

Target

a4crexe.exe
Size

271KB
MD5

f95895e7becbfed7b5808b190cc58bf5
SHA1

76fc5f5e1bfd00695413c07835334aa097881017
SHA256

a1ccb714dc5a49c230ecf1b86239f9983024777d3ae1dbd42971b93fba4036e4
SHA512

4998457db76802ff24f31037809d286d4bb7a9feb4318d579f48ea8041c333a5a16037ba4687889bf0bda512718bf1c143c142c65220446b50dd8c18ff1d016e
SSDEEP

3072:FTLr+scTWSq02XceKBuO8888gV+PUtbtKTUX8pFxtpSQ2v/D:FiscT7DqVKBuO8888gV+zt7HK/D

Score

10^/10

redline a4 infostealer

Malware Config

Extracted

Family

redline

Botnet

65.21.133.231:47430

Attributes

auth_value
770e1e7fb0781851d5e2e8f9e720e0dc

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/3744-135-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

a4crexe.exe

description pid process target process

PID 4124 set thread context of 3744 4124 a4crexe.exe vbc.exe

description	pid	process	target process
PID 4124 set thread context of 3744	4124	a4crexe.exe	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a4crexe.exe

description	pid	process	target process
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe
PID 4124 wrote to memory of 3744	4124	a4crexe.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\a4crexe.exe
"C:\Users\Admin\AppData\Local\Temp\a4crexe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4124

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
PID:3744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3744-135-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3744-138-0x0000000005DA0000-0x00000000063B8000-memory.dmp

Filesize
6.1MB

Download
memory/3744-139-0x0000000005900000-0x0000000005A0A000-memory.dmp

Filesize
1.0MB

Download
memory/3744-140-0x0000000005830000-0x0000000005842000-memory.dmp

Filesize
72KB

Download
memory/3744-141-0x00000000058C0000-0x00000000058FC000-memory.dmp

Filesize
240KB

Download
memory/3744-142-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/3744-143-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4124-133-0x0000000000570000-0x00000000005BA000-memory.dmp

Filesize
296KB

Download
memory/4124-134-0x0000000004F00000-0x0000000004F66000-memory.dmp

Filesize
408KB

Download
memory/4124-136-0x00000000028C0000-0x00000000028D0000-memory.dmp

Filesize
64KB

Download