redline | 73c6f12cbbdf012d580ce17f84cc337b4fc6bc9de0fde4f838585b1db9745331

General

Target
8b214cfd6d347214efae2cdd169d7941.exe
Size 779KB
Sample201031-586nnlpfs2
SHA256 73c6f12cbbdf012d580ce17f84cc337b4fc6bc9de0fde4f838585b1db9745331
MD5 8b214cfd6d347214efae2cdd169d7941
SHA1 4b251257f0aa1cf8259b07a3e1078225e8eec08b
SHA512 1b8ab09c218499b347cb14a6e1b75e2b5fff7ac867e9995f662df7681234609a2d990fbda321ef1bcc4c26afab5c66bd04df1340bebfe37a64765952247449ed
MD5 SHA1 SHA512

Score

10^/10

redline infostealer

Malware Config

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1652-15-0x0000000000790000-0x00000000007B4000-memory.dmp	family_redline
behavioral1/memory/1652-16-0x00000000008C0000-0x00000000008E2000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

pid	Process
568	bestof.exe

Loads dropped DLL 1 IoCs

pid	Process
684	8b214cfd6d347214efae2cdd169d7941.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
11	ip-api.com
16	checkip.amazonaws.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 568 set thread context of 1652	568	bestof.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8b214cfd6d347214efae2cdd169d7941.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8b214cfd6d347214efae2cdd169d7941.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	8b214cfd6d347214efae2cdd169d7941.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	8b214cfd6d347214efae2cdd169d7941.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1620	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1652	AddInProcess32.exe
1652	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	568	bestof.exe
Token: SeDebugPrivilege	1652	AddInProcess32.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 568	684	8b214cfd6d347214efae2cdd169d7941.exe	30
PID 684 wrote to memory of 568	684	8b214cfd6d347214efae2cdd169d7941.exe	30
PID 684 wrote to memory of 568	684	8b214cfd6d347214efae2cdd169d7941.exe	30
PID 684 wrote to memory of 568	684	8b214cfd6d347214efae2cdd169d7941.exe	30
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 568 wrote to memory of 1652	568	bestof.exe	32
PID 1652 wrote to memory of 1336	1652	AddInProcess32.exe	34
PID 1652 wrote to memory of 1336	1652	AddInProcess32.exe	34
PID 1652 wrote to memory of 1336	1652	AddInProcess32.exe	34
PID 1652 wrote to memory of 1336	1652	AddInProcess32.exe	34
PID 1336 wrote to memory of 1620	1336	cmd.exe	36
PID 1336 wrote to memory of 1620	1336	cmd.exe	36
PID 1336 wrote to memory of 1620	1336	cmd.exe	36
PID 1336 wrote to memory of 1620	1336	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\8b214cfd6d347214efae2cdd169d7941.exe
"C:\Users\Admin\AppData\Local\Temp\8b214cfd6d347214efae2cdd169d7941.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:684
- C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
  bestof.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:568
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1652
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1336
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 127.0.0.1 -n 3
        5⤵
        Runs ping.exe
        
        PID:1620