redline | b42b33ffa4b45bc81b71f13d89dc1283b155204913aa8362e99e9aa44366bfb2

Analysis

max time kernel
128s
max time network
128s
platform
windows10_x64
resource
win10v20201028
submitted
08/12/2020, 07:03

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General

Target
44c007c4b3596626b27c7a1e6b5b4d1c.exe
Size 951KB
Sample201208-vxvvhvsc1n
SHA256 b42b33ffa4b45bc81b71f13d89dc1283b155204913aa8362e99e9aa44366bfb2
MD5 44c007c4b3596626b27c7a1e6b5b4d1c
SHA1 c4e9098f51df0aa1bc68bb97a71967191eb1951b
SHA512 b882a953f06e15d7467fcd7a3e654590d6eb8a57e579b4fbe1942a164a75e72b8c921f8f3107d4160f500aed111e218179bba9d629d6632b03d5e6ec7d23f9c2
MD5 SHA1 SHA512

Score

10^/10

redline discovery infostealer spyware upx

Malware Config

Signatures

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

RedLine Payload 4 IoCs

resource	yara_rule
behavioral2/memory/2780-13-0x0000000002E80000-0x0000000002EA4000-memory.dmp	family_redline
behavioral2/memory/2780-15-0x00000000031F0000-0x0000000003213000-memory.dmp	family_redline
behavioral2/memory/2224-41-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral2/memory/2224-42-0x0000000000421AD2-mapping.dmp	family_redline

Executes dropped EXE 5 IoCs

pid	Process
2120	800747248.exe
2216	1982677757.exe
2224	1982677757.exe
588	helper.exe
1368	explorer.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00030000000006bb-71.dat	upx

Loads dropped DLL 1 IoCs

pid	Process
3640	rundll32.exe

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 2 IoCs

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

flow	ioc
31	checkip.amazonaws.com
41	checkip.amazonaws.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2120 set thread context of 2780	2120	800747248.exe	77
PID 2216 set thread context of 2224	2216	1982677757.exe	82

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

System Information Discovery
T1082

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\RarSFX0\list.txt:metadata	helper.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
644	PING.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2780	AddInProcess32.exe
2224	1982677757.exe
2224	1982677757.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2120	800747248.exe
Token: SeDebugPrivilege	2780	AddInProcess32.exe
Token: SeDebugPrivilege	2224	1982677757.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 2120	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	76
PID 412 wrote to memory of 2120	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	76
PID 412 wrote to memory of 2120	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	76
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 2120 wrote to memory of 2780	2120	800747248.exe	77
PID 412 wrote to memory of 2216	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	78
PID 412 wrote to memory of 2216	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	78
PID 412 wrote to memory of 2216	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	78
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 2216 wrote to memory of 2224	2216	1982677757.exe	82
PID 412 wrote to memory of 184	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	83
PID 412 wrote to memory of 184	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	83
PID 412 wrote to memory of 184	412	44c007c4b3596626b27c7a1e6b5b4d1c.exe	83
PID 184 wrote to memory of 644	184	cmd.exe	85
PID 184 wrote to memory of 644	184	cmd.exe	85
PID 184 wrote to memory of 644	184	cmd.exe	85
PID 2224 wrote to memory of 588	2224	1982677757.exe	86
PID 2224 wrote to memory of 588	2224	1982677757.exe	86
PID 588 wrote to memory of 2160	588	helper.exe	87
PID 588 wrote to memory of 2160	588	helper.exe	87
PID 2160 wrote to memory of 3640	2160	cmd.exe	89
PID 2160 wrote to memory of 3640	2160	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\44c007c4b3596626b27c7a1e6b5b4d1c.exe
"C:\Users\Admin\AppData\Local\Temp\44c007c4b3596626b27c7a1e6b5b4d1c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:412
- C:\Users\Admin\AppData\Local\Temp\800747248.exe
  C:\Users\Admin\AppData\Local\Temp\800747248.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2120
- - 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
    PID:2780
- C:\Users\Admin\AppData\Local\Temp\1982677757.exe
  C:\Users\Admin\AppData\Local\Temp\1982677757.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2216
- - C:\Users\Admin\AppData\Local\Temp\1982677757.exe
    "{path}"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2224
  - - C:\Users\Admin\AppData\Local\Temp\helper.exe
      "C:\Users\Admin\AppData\Local\Temp\helper.exe"
      4⤵
      Executes dropped EXE
      NTFS ADS
      Suspicious use of WriteProcessMemory
      PID:588
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /c list.bat
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2160
      - C:\Windows\System32\rundll32.exe
        
        C:\Windows\System32\rundll32.exe list.txt:metadata, Verify
        6⤵
        Loads dropped DLL
        
        PID:3640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /k ping 0 & del C:\Users\Admin\AppData\Local\Temp\44c007c4b3596626b27c7a1e6b5b4d1c.exe & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:184
- - C:\Windows\SysWOW64\PING.EXE
    ping 0
    3⤵
    - Runs ping.exe
    PID:644

C:\Users\Admin\AppData\Local\Temp\explorer.exe
C:\Users\Admin\AppData\Local\Temp\explorer.exe C:\Users\Admin\AppData\Local\Temp\start.vbs
1⤵
- Executes dropped EXE
PID:1368

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2120-6-0x00000000008D0000-0x00000000008D1000-memory.dmp

Download

memory/2120-5-0x0000000072BB0000-0x000000007329E000-memory.dmp

Download

memory/2216-31-0x0000000005850000-0x000000000585E000-memory.dmp

Download

memory/2216-28-0x0000000004D10000-0x0000000004D11000-memory.dmp

Download

memory/2216-30-0x00000000078E0000-0x00000000078E1000-memory.dmp

Download

memory/2216-26-0x0000000004D40000-0x0000000004D41000-memory.dmp

Download

memory/2216-20-0x0000000072BB0000-0x000000007329E000-memory.dmp

Download

memory/2216-22-0x0000000000410000-0x0000000000411000-memory.dmp

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memory/2216-39-0x00000000076F0000-0x0000000007752000-memory.dmp

Download

memory/2224-62-0x00000000072A0000-0x00000000072A1000-memory.dmp

Download

memory/2224-51-0x0000000005110000-0x0000000005111000-memory.dmp

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memory/2224-45-0x0000000072BB0000-0x000000007329E000-memory.dmp

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memory/2224-41-0x0000000000400000-0x0000000000428000-memory.dmp

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memory/2780-36-0x0000000007370000-0x0000000007371000-memory.dmp

Download

memory/2780-16-0x0000000006740000-0x0000000006741000-memory.dmp

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memory/2780-37-0x0000000007640000-0x0000000007641000-memory.dmp

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memory/2780-23-0x0000000005730000-0x0000000005731000-memory.dmp

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memory/2780-27-0x00000000057B0000-0x00000000057B1000-memory.dmp

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memory/2780-21-0x0000000005770000-0x0000000005771000-memory.dmp

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memory/2780-35-0x00000000072F0000-0x00000000072F1000-memory.dmp

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memory/2780-32-0x0000000007120000-0x0000000007121000-memory.dmp

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memory/2780-29-0x0000000005A30000-0x0000000005A31000-memory.dmp

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memory/2780-38-0x0000000007DF0000-0x0000000007DF1000-memory.dmp

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memory/2780-15-0x00000000031F0000-0x0000000003213000-memory.dmp

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memory/2780-14-0x0000000005C30000-0x0000000005C31000-memory.dmp

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memory/2780-13-0x0000000002E80000-0x0000000002EA4000-memory.dmp

Download

memory/2780-8-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/2780-12-0x0000000072BB0000-0x000000007329E000-memory.dmp

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memory/2780-11-0x0000000002EF0000-0x0000000002EF1000-memory.dmp

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memory/2780-10-0x0000000000400000-0x0000000000436000-memory.dmp

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