webmonitor | ecf20ba9055ef6e87d3c8565f3eedf67f02b068c844056d7a5c1d60bb9e67e5b

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7v20201028
submitted
06-04-2021 08:19

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General

Target

IMAGE20210406_490133692.exe
Size

1.6MB
MD5

432494553bb7b05ce1970f180968aac3
SHA1

c1147f87babcf9c0ce3e278ded158c1343dc7e92
SHA256

ecf20ba9055ef6e87d3c8565f3eedf67f02b068c844056d7a5c1d60bb9e67e5b
SHA512

bf961ad8680d045a9a2555018695ed2e0a607feda2b60a3936be19f380985742075349d3d9112a8894f5a0c0fef2c9c668e5469ca4005ca7109bf8925b5067fd

Score

10^/10

webmonitor backdoor infostealer persistence rat

Malware Config

Signatures

RevcodeRat, WebMonitorRat
WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.
backdoor rat infostealer webmonitor

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-25c6 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-25c6.exe"	IMAGE20210406_490133692.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 1600	1732	IMAGE20210406_490133692.exe	41

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1060	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
268	powershell.exe
1016	powershell.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
1732	IMAGE20210406_490133692.exe
276	powershell.exe
268	powershell.exe
1016	powershell.exe
276	powershell.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1600	IMAGE20210406_490133692.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	IMAGE20210406_490133692.exe
Token: SeDebugPrivilege	268	powershell.exe
Token: SeDebugPrivilege	1016	powershell.exe
Token: SeDebugPrivilege	276	powershell.exe
Token: SeShutdownPrivilege	1600	IMAGE20210406_490133692.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 268	1732	IMAGE20210406_490133692.exe	29
PID 1732 wrote to memory of 268	1732	IMAGE20210406_490133692.exe	29
PID 1732 wrote to memory of 268	1732	IMAGE20210406_490133692.exe	29
PID 1732 wrote to memory of 268	1732	IMAGE20210406_490133692.exe	29
PID 1732 wrote to memory of 1016	1732	IMAGE20210406_490133692.exe	31
PID 1732 wrote to memory of 1016	1732	IMAGE20210406_490133692.exe	31
PID 1732 wrote to memory of 1016	1732	IMAGE20210406_490133692.exe	31
PID 1732 wrote to memory of 1016	1732	IMAGE20210406_490133692.exe	31
PID 1732 wrote to memory of 1060	1732	IMAGE20210406_490133692.exe	33
PID 1732 wrote to memory of 1060	1732	IMAGE20210406_490133692.exe	33
PID 1732 wrote to memory of 1060	1732	IMAGE20210406_490133692.exe	33
PID 1732 wrote to memory of 1060	1732	IMAGE20210406_490133692.exe	33
PID 1732 wrote to memory of 276	1732	IMAGE20210406_490133692.exe	35
PID 1732 wrote to memory of 276	1732	IMAGE20210406_490133692.exe	35
PID 1732 wrote to memory of 276	1732	IMAGE20210406_490133692.exe	35
PID 1732 wrote to memory of 276	1732	IMAGE20210406_490133692.exe	35
PID 1732 wrote to memory of 1312	1732	IMAGE20210406_490133692.exe	37
PID 1732 wrote to memory of 1312	1732	IMAGE20210406_490133692.exe	37
PID 1732 wrote to memory of 1312	1732	IMAGE20210406_490133692.exe	37
PID 1732 wrote to memory of 1312	1732	IMAGE20210406_490133692.exe	37
PID 1732 wrote to memory of 1992	1732	IMAGE20210406_490133692.exe	38
PID 1732 wrote to memory of 1992	1732	IMAGE20210406_490133692.exe	38
PID 1732 wrote to memory of 1992	1732	IMAGE20210406_490133692.exe	38
PID 1732 wrote to memory of 1992	1732	IMAGE20210406_490133692.exe	38
PID 1732 wrote to memory of 1584	1732	IMAGE20210406_490133692.exe	39
PID 1732 wrote to memory of 1584	1732	IMAGE20210406_490133692.exe	39
PID 1732 wrote to memory of 1584	1732	IMAGE20210406_490133692.exe	39
PID 1732 wrote to memory of 1584	1732	IMAGE20210406_490133692.exe	39
PID 1732 wrote to memory of 1716	1732	IMAGE20210406_490133692.exe	40
PID 1732 wrote to memory of 1716	1732	IMAGE20210406_490133692.exe	40
PID 1732 wrote to memory of 1716	1732	IMAGE20210406_490133692.exe	40
PID 1732 wrote to memory of 1716	1732	IMAGE20210406_490133692.exe	40
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41
PID 1732 wrote to memory of 1600	1732	IMAGE20210406_490133692.exe	41

C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe
"C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:268
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nTLvOJ.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nTLvOJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF19.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1060
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nTLvOJ.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:276
- C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe
  "C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
  2⤵
  PID:1312
- C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe
  "C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
  2⤵
  PID:1992
- C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe
  "C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
  2⤵
  PID:1584
- C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe
  "C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
  2⤵
  PID:1716
- C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe
  "C:\Users\Admin\AppData\Local\Temp\IMAGE20210406_490133692.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  PID:1600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/268-17-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/268-54-0x0000000006220000-0x0000000006221000-memory.dmp

Filesize
4KB

Download
memory/268-12-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/268-84-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download
memory/268-83-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/268-68-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/268-37-0x00000000024E0000-0x00000000024E1000-memory.dmp

Filesize
4KB

Download
memory/268-23-0x0000000004890000-0x0000000004891000-memory.dmp

Filesize
4KB

Download
memory/268-61-0x00000000061B0000-0x00000000061B1000-memory.dmp

Filesize
4KB

Download
memory/268-26-0x0000000004892000-0x0000000004893000-memory.dmp

Filesize
4KB

Download
memory/268-42-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/268-47-0x00000000056C0000-0x00000000056C1000-memory.dmp

Filesize
4KB

Download
memory/268-52-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/268-53-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/276-40-0x0000000002922000-0x0000000002923000-memory.dmp

Filesize
4KB

Download
memory/276-36-0x0000000002920000-0x0000000002921000-memory.dmp

Filesize
4KB

Download
memory/276-33-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1016-25-0x0000000002512000-0x0000000002513000-memory.dmp

Filesize
4KB

Download
memory/1016-24-0x0000000002510000-0x0000000002511000-memory.dmp

Filesize
4KB

Download
memory/1016-21-0x0000000004930000-0x0000000004931000-memory.dmp

Filesize
4KB

Download
memory/1016-19-0x0000000002000000-0x0000000002001000-memory.dmp

Filesize
4KB

Download
memory/1016-16-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1600-94-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1600-28-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1600-39-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/1600-95-0x0000000003280000-0x0000000004280000-memory.dmp

Filesize
16.0MB

Download
memory/1676-96-0x000007FEF6400000-0x000007FEF667A000-memory.dmp

Filesize
2.5MB

Download
memory/1732-2-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1732-6-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

Filesize
4KB

Download
memory/1732-5-0x0000000000B20000-0x0000000000B24000-memory.dmp

Filesize
16KB

Download
memory/1732-3-0x0000000000050000-0x0000000000051000-memory.dmp

Filesize
4KB

Download
memory/1732-7-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/1732-8-0x0000000005340000-0x0000000005439000-memory.dmp

Filesize
996KB

Download
memory/1732-9-0x0000000005490000-0x000000000558A000-memory.dmp

Filesize
1000KB

Download