redline | be394c34bc2d5f532f3ddac7e2d692c60401d71858d4ae2f077af559f33ef772

Analysis

max time kernel
149s
max time network
150s
platform
windows10_x64
resource
win10v20210410
submitted
24-05-2021 19:27

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General

Target

VPN_Free.exe
Size

2.0MB
MD5

831d4e7f62efecd2fc159074383b965b
SHA1

4856dbaebf644b83f620fff1666f8553ad47d9b5
SHA256

be394c34bc2d5f532f3ddac7e2d692c60401d71858d4ae2f077af559f33ef772
SHA512

6e60c373cb7ace5666507dd58bf39c4c92346c070f6c4a2d62cd5966dd84bddee89034ba3ee4cce52df74fc0b0aede68d49fea29ee24f9698833905c853c88e8

Score

10^/10

redline vpnfree infostealer

Malware Config

Extracted

Family

redline

Botnet

VPNFree

80.92.205.112:81

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
behavioral2/memory/492-126-0x0000000000400000-0x0000000000442000-memory.dmp	family_redline
behavioral2/memory/492-127-0x000000000042B08E-mapping.dmp	family_redline

Suspicious use of SetThreadContext 1 IoCs

Processes:

VPN_Free.exe

description	pid	Process	procid_target
PID 1696 set thread context of 492	1696	VPN_Free.exe	83

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

taskmgr.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000\FriendlyName	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_&Prod_HeartDisk\4&37ce57ba&0&000000	taskmgr.exe

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

Processes:

taskmgr.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

taskmgr.exeVPN_Free.exe

pid	Process
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1696	VPN_Free.exe
1696	VPN_Free.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

taskmgr.exe

pid	Process
1800	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

VPN_Free.exetaskmgr.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	1696	VPN_Free.exe
Token: SeDebugPrivilege	1800	taskmgr.exe
Token: SeSystemProfilePrivilege	1800	taskmgr.exe
Token: SeCreateGlobalPrivilege	1800	taskmgr.exe
Token: SeDebugPrivilege	492	RegSvcs.exe

Suspicious use of FindShellTrayWindow 64 IoCs

Processes:

taskmgr.exe

pid	Process
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe

Suspicious use of SendNotifyMessage 64 IoCs

Processes:

taskmgr.exe

pid	Process
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe
1800	taskmgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

VPN_Free.exe

description	pid	Process	procid_target
PID 1696 wrote to memory of 2104	1696	VPN_Free.exe	82
PID 1696 wrote to memory of 2104	1696	VPN_Free.exe	82
PID 1696 wrote to memory of 2104	1696	VPN_Free.exe	82
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83
PID 1696 wrote to memory of 492	1696	VPN_Free.exe	83

C:\Users\Admin\AppData\Local\Temp\VPN_Free.exe
"C:\Users\Admin\AppData\Local\Temp\VPN_Free.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:2104
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:492

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
1⤵
- Checks SCSI registry key(s)
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/492-126-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/492-137-0x0000000005730000-0x0000000005731000-memory.dmp

Filesize
4KB

Download
memory/492-136-0x00000000054D0000-0x00000000054D1000-memory.dmp

Filesize
4KB

Download
memory/492-135-0x0000000005490000-0x0000000005491000-memory.dmp

Filesize
4KB

Download
memory/492-134-0x0000000005430000-0x0000000005431000-memory.dmp

Filesize
4KB

Download
memory/492-133-0x00000000059B0000-0x00000000059B1000-memory.dmp

Filesize
4KB

Download
memory/492-132-0x00000000051D0000-0x00000000051D1000-memory.dmp

Filesize
4KB

Download
memory/492-131-0x0000000004B90000-0x0000000004C06000-memory.dmp

Filesize
472KB

Download
memory/492-130-0x0000000004C10000-0x0000000004C11000-memory.dmp

Filesize
4KB

Download
memory/492-127-0x000000000042B08E-mapping.dmp

Download
memory/1696-120-0x0000000002930000-0x0000000002931000-memory.dmp

Filesize
4KB

Download
memory/1696-125-0x000000000ADF0000-0x000000000AE81000-memory.dmp

Filesize
580KB

Download
memory/1696-124-0x000000000B120000-0x000000000B1EC000-memory.dmp

Filesize
816KB

Download
memory/1696-123-0x000000000AE90000-0x000000000AE91000-memory.dmp

Filesize
4KB

Download
memory/1696-122-0x000000000ADC0000-0x000000000ADC5000-memory.dmp

Filesize
20KB

Download
memory/1696-121-0x000000000ACE0000-0x000000000ADA7000-memory.dmp

Filesize
796KB

Download
memory/1696-114-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/1696-119-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/1696-118-0x0000000005050000-0x0000000005051000-memory.dmp

Filesize
4KB

Download
memory/1696-117-0x0000000007530000-0x0000000007531000-memory.dmp

Filesize
4KB

Download
memory/1696-116-0x0000000007A30000-0x0000000007A31000-memory.dmp

Filesize
4KB

Download