redline | 9ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65

General

Target

gfersd.exe
Size

343KB
MD5

72131adb0e2315281aae445db11e09a2
SHA1

712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e
SHA256

9ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65
SHA512

bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22

Score

10^/10

redline discovery infostealer spyware

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
behavioral1/memory/1756-4-0x0000000006580000-0x00000000065A4000-memory.dmp	family_redline
behavioral1/memory/1756-5-0x00000000065B0000-0x00000000065D2000-memory.dmp	family_redline

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

8 checkip.amazonaws.com
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

940 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

gfersd.exe

pid process

1756 gfersd.exe
1756 gfersd.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

gfersd.exe

description pid process

Token: SeDebugPrivilege 1756 gfersd.exe

flow	ioc
8	checkip.amazonaws.com

pid	process
940	PING.EXE

pid	process
1756	gfersd.exe
1756	gfersd.exe

description	pid	process
Token: SeDebugPrivilege	1756	gfersd.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

gfersd.execmd.exe

description	pid	process	target process
PID 1756 wrote to memory of 1648	1756	gfersd.exe	cmd.exe
PID 1756 wrote to memory of 1648	1756	gfersd.exe	cmd.exe
PID 1756 wrote to memory of 1648	1756	gfersd.exe	cmd.exe
PID 1756 wrote to memory of 1648	1756	gfersd.exe	cmd.exe
PID 1648 wrote to memory of 940	1648	cmd.exe	PING.EXE
PID 1648 wrote to memory of 940	1648	cmd.exe	PING.EXE
PID 1648 wrote to memory of 940	1648	cmd.exe	PING.EXE
PID 1648 wrote to memory of 940	1648	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\gfersd.exe
"C:\Users\Admin\AppData\Local\Temp\gfersd.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""
2⤵
- Suspicious use of WriteProcessMemory
PID:1648

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 3
3⤵
- Runs ping.exe
PID:940

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/940-7-0x0000000000000000-mapping.dmp

Download
memory/1648-6-0x0000000000000000-mapping.dmp

Download
memory/1756-0-0x0000000002429000-0x000000000242A000-memory.dmp

Filesize
4KB

Download
memory/1756-1-0x0000000003C20000-0x0000000003C31000-memory.dmp

Filesize
68KB

Download
memory/1756-2-0x0000000003E50000-0x0000000003E61000-memory.dmp

Filesize
68KB

Download
memory/1756-3-0x0000000073D40000-0x000000007442E000-memory.dmp

Filesize
6.9MB

Download
memory/1756-4-0x0000000006580000-0x00000000065A4000-memory.dmp

Filesize
144KB

Download
memory/1756-5-0x00000000065B0000-0x00000000065D2000-memory.dmp

Filesize
136KB

Download

Analysis

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