redline | a1ccb714dc5a49c230ecf1b86239f9983024777d3ae1dbd42971b93fba4036e4

Analysis

max time kernel
79s
max time network
82s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27-11-2022 10:52

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General

Target

a4cr.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 spyware

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 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1724-58-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/1724-59-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/1724-60-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/1724-61-0x0000000000422186-mapping.dmp	family_redline
behavioral1/memory/1724-63-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/1724-65-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Suspicious use of SetThreadContext 1 IoCs

Processes:

a4cr.exe

description pid process target process

PID 1812 set thread context of 1724 1812 a4cr.exe vbc.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

vbc.exe

pid process

1724 vbc.exe
1724 vbc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

vbc.exe

description pid process

Token: SeDebugPrivilege 1724 vbc.exe

description	pid	process	target process
PID 1812 set thread context of 1724	1812	a4cr.exe	vbc.exe

pid	process
1724	vbc.exe
1724	vbc.exe

description	pid	process
Token: SeDebugPrivilege	1724	vbc.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a4cr.exe

description	pid	process	target process
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe
PID 1812 wrote to memory of 1724	1812	a4cr.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\a4cr.exe
"C:\Users\Admin\AppData\Local\Temp\a4cr.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1724

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Web Service

T1102

Impact

Replay Monitor

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Downloads

memory/1724-55-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-56-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-58-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-59-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-60-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-61-0x0000000000422186-mapping.dmp

Download
memory/1724-63-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-65-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1724-66-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/1812-54-0x0000000000BF0000-0x0000000000C3A000-memory.dmp

Filesize
296KB

Download