redline | f7110b1def06d7380d583ef5902076e986cc1688a1c1f21a5fe8f0576b3a9e4c

Analysis

max time kernel
1800s
max time network
1800s
platform
windows10_x64
resource
win10v20201028
submitted
27-12-2020 08:29

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General

Target

client.bin.exe

Score

10^/10

redline discovery infostealer persistence 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

resource	yara_rule
behavioral1/memory/3984-59-0x0000000000400000-0x000000000042A000-memory.dmp	family_redline
behavioral1/memory/3984-60-0x000000000042411A-mapping.dmp	family_redline

Executes dropped EXE 4 IoCs

pid	Process
2516	NS-5C19F.tmp
1140	dwm.exe
3644	2.exe
3984	2.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	dwm.exe

Loads dropped DLL 9 IoCs

pid	Process
2516	NS-5C19F.tmp
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\dwm = "C:\\Users\\Admin\\AppData\\Roaming\\DEPLOY~1\\dwm.exe"	reg.exe

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.

flow	ioc
38	checkip.amazonaws.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3644 set thread context of 3984	3644	2.exe	88

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2200	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe
1140	dwm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1140	dwm.exe
Token: SeDebugPrivilege	3984	2.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3644	2.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3644	2.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 2516	1144	client.bin.exe	75
PID 1144 wrote to memory of 2516	1144	client.bin.exe	75
PID 1144 wrote to memory of 2516	1144	client.bin.exe	75
PID 2516 wrote to memory of 548	2516	NS-5C19F.tmp	77
PID 2516 wrote to memory of 548	2516	NS-5C19F.tmp	77
PID 2516 wrote to memory of 548	2516	NS-5C19F.tmp	77
PID 548 wrote to memory of 192	548	cmd.exe	79
PID 548 wrote to memory of 192	548	cmd.exe	79
PID 548 wrote to memory of 192	548	cmd.exe	79
PID 548 wrote to memory of 1140	548	cmd.exe	80
PID 548 wrote to memory of 1140	548	cmd.exe	80
PID 548 wrote to memory of 1140	548	cmd.exe	80
PID 1140 wrote to memory of 1660	1140	dwm.exe	81
PID 1140 wrote to memory of 1660	1140	dwm.exe	81
PID 1140 wrote to memory of 1660	1140	dwm.exe	81
PID 1660 wrote to memory of 2192	1660	cmd.exe	83
PID 1660 wrote to memory of 2192	1660	cmd.exe	83
PID 1660 wrote to memory of 2192	1660	cmd.exe	83
PID 1140 wrote to memory of 3644	1140	dwm.exe	87
PID 1140 wrote to memory of 3644	1140	dwm.exe	87
PID 1140 wrote to memory of 3644	1140	dwm.exe	87
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3644 wrote to memory of 3984	3644	2.exe	88
PID 3984 wrote to memory of 2276	3984	2.exe	89
PID 3984 wrote to memory of 2276	3984	2.exe	89
PID 3984 wrote to memory of 2276	3984	2.exe	89
PID 2276 wrote to memory of 2200	2276	cmd.exe	91
PID 2276 wrote to memory of 2200	2276	cmd.exe	91
PID 2276 wrote to memory of 2200	2276	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\client.bin.exe
"C:\Users\Admin\AppData\Local\Temp\client.bin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Users\Admin\AppData\Local\Temp\NS-7M64B.tmp\NS-5C19F.tmp
  "C:\Users\Admin\AppData\Local\Temp\NS-7M64B.tmp\NS-5C19F.tmp" /et9 $20110 C:\Users\Admin\AppData\Local\Temp\client.bin.exe 4590206 359424 /password=1dwhcbw /verysilent
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\ml2os0lx\lb3od53.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:548
  - - C:\Windows\SysWOW64\xcopy.exe
      xcopy /Y /I /S "C:\Users\Admin\AppData\Local\Temp\ml2os0lx\*" "C:\Users\Admin\AppData\Roaming\Deployment\"
      4⤵
      Enumerates system info in registry
      PID:192
  - - C:\Users\Admin\AppData\Roaming\Deployment\dwm.exe
      "C:\Users\Admin\AppData\Roaming\Deployment\dwm.exe"
      4⤵
      Executes dropped EXE
      Checks computer location settings
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1140
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce" /V "dwm" /t REG_SZ /F /D "C:\Users\Admin\AppData\Roaming\DEPLOY~1\dwm.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1660
      - C:\Windows\SysWOW64\reg.exe
        
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\RunOnce" /V "dwm" /t REG_SZ /F /D "C:\Users\Admin\AppData\Roaming\DEPLOY~1\dwm.exe"
        6⤵
        Adds Run key to start application
        
        PID:2192
    - - C:\Users\Admin\AppData\Local\Temp\2.exe
        
        C:\Users\Admin\AppData\Local\Temp\2.exe
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of FindShellTrayWindow
        Suspicious use of SendNotifyMessage
        Suspicious use of WriteProcessMemory
        
        PID:3644
      - C:\Users\Admin\AppData\Local\Temp\2.exe
        
        "{path}"
        6⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:3984
        
        C:\Windows\SysWOW64\cmd.exe
        
        "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del "C:\Users\Admin\AppData\Local\Temp\2.exe"
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:2276
        
        C:\Windows\SysWOW64\PING.EXE
        
        ping 127.0.0.1 -n 3
        8⤵
        Runs ping.exe
        
        PID:2200

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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/3644-54-0x0000000004DE0000-0x0000000004DE1000-memory.dmp

Filesize
4KB

Download
memory/3644-55-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Filesize
4KB

Download
memory/3644-56-0x00000000084A0000-0x00000000084A1000-memory.dmp

Filesize
4KB

Download
memory/3644-57-0x0000000005140000-0x0000000005144000-memory.dmp

Filesize
16KB

Download
memory/3644-58-0x0000000008930000-0x00000000089D9000-memory.dmp

Filesize
676KB

Download
memory/3644-53-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/3644-51-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/3644-50-0x0000000071090000-0x000000007177E000-memory.dmp

Filesize
6.9MB

Download
memory/3984-66-0x0000000005BC0000-0x0000000005BC1000-memory.dmp

Filesize
4KB

Download
memory/3984-67-0x0000000005460000-0x0000000005461000-memory.dmp

Filesize
4KB

Download
memory/3984-68-0x0000000005440000-0x0000000005441000-memory.dmp

Filesize
4KB

Download
memory/3984-69-0x00000000054B0000-0x00000000054B1000-memory.dmp

Filesize
4KB

Download
memory/3984-70-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/3984-71-0x00000000068D0000-0x00000000068D1000-memory.dmp

Filesize
4KB

Download
memory/3984-72-0x0000000006FD0000-0x0000000006FD1000-memory.dmp

Filesize
4KB

Download
memory/3984-75-0x0000000006CA0000-0x0000000006CA1000-memory.dmp

Filesize
4KB

Download
memory/3984-76-0x0000000006D20000-0x0000000006D21000-memory.dmp

Filesize
4KB

Download
memory/3984-77-0x0000000006EF0000-0x0000000006EF1000-memory.dmp

Filesize
4KB

Download
memory/3984-63-0x0000000071090000-0x000000007177E000-memory.dmp

Filesize
6.9MB

Download
memory/3984-59-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download