webmonitor | fae42a1d8dbd274ade612e53f14f4f48213f7397e413b32fb499ecf4179409b0

General

Target

INVOICE20210511.exe
Size

1.3MB
MD5

63f0d02851b4513b062581c91b62132b
SHA1

18a60c599d7e5daba6d6982ae33ca14d4e4067df
SHA256

fae42a1d8dbd274ade612e53f14f4f48213f7397e413b32fb499ecf4179409b0
SHA512

6407a553565fecf34f2f6fb4afb755ee262be43f19469e67e529fb1fc2c6559eba7a6867f9d059d35f39d7c86ae0fa84e8b10c3ce4e07050ea2a2dafd11e862e

Score

10^/10

webmonitor backdoor infostealer 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

WebMonitor Payload 3 IoCs

resource	yara_rule
behavioral2/memory/184-140-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/184-142-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral2/memory/184-162-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3152 set thread context of 184	3152	INVOICE20210511.exe	87

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
3960	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3152	INVOICE20210511.exe
2128	powershell.exe
1280	powershell.exe
356	powershell.exe
1280	powershell.exe
2128	powershell.exe
356	powershell.exe
1280	powershell.exe
2128	powershell.exe
356	powershell.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
184	INVOICE20210511.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3152	INVOICE20210511.exe
Token: SeDebugPrivilege	356	powershell.exe
Token: SeDebugPrivilege	2128	powershell.exe
Token: SeDebugPrivilege	1280	powershell.exe
Token: SeShutdownPrivilege	184	INVOICE20210511.exe
Token: SeCreatePagefilePrivilege	184	INVOICE20210511.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 356	3152	INVOICE20210511.exe	79
PID 3152 wrote to memory of 356	3152	INVOICE20210511.exe	79
PID 3152 wrote to memory of 356	3152	INVOICE20210511.exe	79
PID 3152 wrote to memory of 2128	3152	INVOICE20210511.exe	81
PID 3152 wrote to memory of 2128	3152	INVOICE20210511.exe	81
PID 3152 wrote to memory of 2128	3152	INVOICE20210511.exe	81
PID 3152 wrote to memory of 3960	3152	INVOICE20210511.exe	83
PID 3152 wrote to memory of 3960	3152	INVOICE20210511.exe	83
PID 3152 wrote to memory of 3960	3152	INVOICE20210511.exe	83
PID 3152 wrote to memory of 1280	3152	INVOICE20210511.exe	85
PID 3152 wrote to memory of 1280	3152	INVOICE20210511.exe	85
PID 3152 wrote to memory of 1280	3152	INVOICE20210511.exe	85
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 3152 wrote to memory of 184	3152	INVOICE20210511.exe	87
PID 184 wrote to memory of 3700	184	INVOICE20210511.exe	89
PID 184 wrote to memory of 3700	184	INVOICE20210511.exe	89
PID 184 wrote to memory of 3700	184	INVOICE20210511.exe	89

C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152
- 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\INVOICE20210511.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:356
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nbBnuvGQkNaCaX.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2128
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nbBnuvGQkNaCaX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB0D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3960
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nbBnuvGQkNaCaX.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1280
- C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE20210511.exe"
  2⤵
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:184
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1z3qqTh3PVxdIZpT.bat" "
    3⤵
    PID:3700

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/184-140-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/184-162-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/356-153-0x00000000073A0000-0x00000000073A1000-memory.dmp

Filesize
4KB

Download
memory/356-193-0x000000007E820000-0x000000007E821000-memory.dmp

Filesize
4KB

Download
memory/356-156-0x00000000075F0000-0x00000000075F1000-memory.dmp

Filesize
4KB

Download
memory/356-146-0x0000000004292000-0x0000000004293000-memory.dmp

Filesize
4KB

Download
memory/356-145-0x0000000004290000-0x0000000004291000-memory.dmp

Filesize
4KB

Download
memory/356-135-0x0000000006C90000-0x0000000006C91000-memory.dmp

Filesize
4KB

Download
memory/356-197-0x0000000004293000-0x0000000004294000-memory.dmp

Filesize
4KB

Download
memory/1280-195-0x0000000006A53000-0x0000000006A54000-memory.dmp

Filesize
4KB

Download
memory/1280-163-0x0000000006F50000-0x0000000006F51000-memory.dmp

Filesize
4KB

Download
memory/1280-164-0x0000000007FE0000-0x0000000007FE1000-memory.dmp

Filesize
4KB

Download
memory/1280-169-0x0000000007E00000-0x0000000007E01000-memory.dmp

Filesize
4KB

Download
memory/1280-159-0x0000000007850000-0x0000000007851000-memory.dmp

Filesize
4KB

Download
memory/1280-192-0x000000007ED60000-0x000000007ED61000-memory.dmp

Filesize
4KB

Download
memory/1280-148-0x0000000006A50000-0x0000000006A51000-memory.dmp

Filesize
4KB

Download
memory/1280-149-0x0000000006A52000-0x0000000006A53000-memory.dmp

Filesize
4KB

Download
memory/2128-194-0x000000007F410000-0x000000007F411000-memory.dmp

Filesize
4KB

Download
memory/2128-144-0x00000000047F0000-0x00000000047F1000-memory.dmp

Filesize
4KB

Download
memory/2128-147-0x00000000047F2000-0x00000000047F3000-memory.dmp

Filesize
4KB

Download
memory/2128-132-0x0000000004630000-0x0000000004631000-memory.dmp

Filesize
4KB

Download
memory/2128-150-0x00000000070B0000-0x00000000070B1000-memory.dmp

Filesize
4KB

Download
memory/2128-196-0x00000000047F3000-0x00000000047F4000-memory.dmp

Filesize
4KB

Download
memory/3152-120-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

Filesize
4KB

Download
memory/3152-123-0x0000000006150000-0x0000000006296000-memory.dmp

Filesize
1.3MB

Download
memory/3152-122-0x0000000004F80000-0x0000000004F84000-memory.dmp

Filesize
16KB

Download
memory/3152-124-0x00000000096E0000-0x0000000009821000-memory.dmp

Filesize
1.3MB

Download
memory/3152-114-0x0000000000050000-0x0000000000051000-memory.dmp

Filesize
4KB

Download
memory/3152-121-0x0000000004A90000-0x0000000004F8E000-memory.dmp

Filesize
5.0MB

Download
memory/3152-119-0x0000000004A60000-0x0000000004A61000-memory.dmp

Filesize
4KB

Download
memory/3152-118-0x0000000004B30000-0x0000000004B31000-memory.dmp

Filesize
4KB

Download
memory/3152-117-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/3152-116-0x0000000004970000-0x0000000004971000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads