webmonitor | 167f23bd6318e7e1bbe296639468d866b2b457410daab0e6b941dac6bcc4563f

Analysis

max time kernel
102s
max time network
136s
platform
windows10_x64
resource
win10v20210408
submitted
29-07-2021 10:59

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General

Target

250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe
Size

1.8MB
MD5

a3a62c034f2eb97d3673d2a608073f7e
SHA1

250644fc77d95c6dcaef531b0f351f5ce33bbfbd
SHA256

167f23bd6318e7e1bbe296639468d866b2b457410daab0e6b941dac6bcc4563f
SHA512

16c0b478ea9f1fcdeb9c13af022ac0f18879798eb7715aabd93446630dd0b9e3e9c3c1e31114657623c9c932502b99f41c1f3c52ede0306311f729810366ed71

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

Processes:

resource	yara_rule
behavioral2/memory/2668-138-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral2/memory/2668-139-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral2/memory/2668-150-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral2/memory/580-122-0x0000000004EC0000-0x0000000004ECB000-memory.dmp	CustAttr

Suspicious use of SetThreadContext 1 IoCs

Processes:

250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe

description	pid	Process	procid_target
PID 580 set thread context of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86

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

Processes:

schtasks.exe

pid	Process
3768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exepowershell.exepowershell.exepowershell.exe

pid	Process
580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe
3668	powershell.exe
2540	powershell.exe
2912	powershell.exe
2912	powershell.exe
2540	powershell.exe
3668	powershell.exe
2540	powershell.exe
3668	powershell.exe
2912	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exepowershell.exepowershell.exepowershell.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe
Token: SeDebugPrivilege	2912	powershell.exe
Token: SeDebugPrivilege	3668	powershell.exe
Token: SeDebugPrivilege	2540	powershell.exe
Token: SeShutdownPrivilege	2668	RegSvcs.exe
Token: SeCreatePagefilePrivilege	2668	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exeRegSvcs.exe

description	pid	Process	procid_target
PID 580 wrote to memory of 3668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	78
PID 580 wrote to memory of 3668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	78
PID 580 wrote to memory of 3668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	78
PID 580 wrote to memory of 2912	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	80
PID 580 wrote to memory of 2912	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	80
PID 580 wrote to memory of 2912	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	80
PID 580 wrote to memory of 3768	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	82
PID 580 wrote to memory of 3768	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	82
PID 580 wrote to memory of 3768	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	82
PID 580 wrote to memory of 2540	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	84
PID 580 wrote to memory of 2540	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	84
PID 580 wrote to memory of 2540	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	84
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 580 wrote to memory of 2668	580	250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe	86
PID 2668 wrote to memory of 3184	2668	RegSvcs.exe	88
PID 2668 wrote to memory of 3184	2668	RegSvcs.exe	88
PID 2668 wrote to memory of 3184	2668	RegSvcs.exe	88

C:\Users\Admin\AppData\Local\Temp\250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe
"C:\Users\Admin\AppData\Local\Temp\250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:580
- 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\250644fc77d95c6dcaef531b0f351f5ce33bbfbd.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3668
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CJFickSnic.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CJFickSnic" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E04.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3768
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CJFickSnic.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2540
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WHiwlMen9Z8MEE6t.bat" "
    3⤵
    PID:3184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

MD5
1c19c16e21c97ed42d5beabc93391fc5

SHA1
8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

SHA256
1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

SHA512
7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

MD5
7247129cd0644457905b7d6bf17fd078

SHA1
dbf9139b5a1b72141f170d2eae911bbbe7e128c8

SHA256
dfa6e0d79449f29310b2a0400dc7fa5a3a6b08182233147a81902d1f80a0f8e4

SHA512
9b1ebd7fe485811f10ec02778d90a7f7eccafa0231027b640b94eaed8408107051da7fcc4f17a9aa0eef900fa2595f44be7fd115331fb6da9b10076f5fcf87e0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

MD5
7247129cd0644457905b7d6bf17fd078

SHA1
dbf9139b5a1b72141f170d2eae911bbbe7e128c8

SHA256
dfa6e0d79449f29310b2a0400dc7fa5a3a6b08182233147a81902d1f80a0f8e4

SHA512
9b1ebd7fe485811f10ec02778d90a7f7eccafa0231027b640b94eaed8408107051da7fcc4f17a9aa0eef900fa2595f44be7fd115331fb6da9b10076f5fcf87e0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5
47138b8bec1442c0b5cfb68b8eea5743

SHA1
2f7f8922681f6dafb2a29ea948dbcb9c031de8bd

SHA256
047a8b75864224c417a649072fbf82c00887f784ca714da61f939f2d66478b9a

SHA512
fd0fee680909ee95f745a63b0e49becfb4fa6f37c4555d64f49c085cab308d45afc2c630facab68fc9d20ac6335b7ef85e55d2a16d34fbe5a1725f3224816e99

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5
47138b8bec1442c0b5cfb68b8eea5743

SHA1
2f7f8922681f6dafb2a29ea948dbcb9c031de8bd

SHA256
047a8b75864224c417a649072fbf82c00887f784ca714da61f939f2d66478b9a

SHA512
fd0fee680909ee95f745a63b0e49becfb4fa6f37c4555d64f49c085cab308d45afc2c630facab68fc9d20ac6335b7ef85e55d2a16d34fbe5a1725f3224816e99

Download Submit
C:\Users\Admin\AppData\Local\Temp\WHiwlMen9Z8MEE6t.bat

MD5
eb1663997fd77515abbec52eb0528488

SHA1
d5a2e3ef1dd2ff9a0456025e638cfcb3ba97edac

SHA256
c31a7815cb7cffac6c3c1071583ad0b0a3f79485ebff6533175094455d988198

SHA512
4107d1c1ccd489d36a53f755c5b192ace457836ef8398d974d904f6e67b62e4aeffa6ab294e723f296f147e9308df14e70e045a7f58230447fb1cc8855d34265

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3E04.tmp

MD5
be804f80f44d1cc8f4b80653df14f81d

SHA1
05ebba138c561d0e490ddfa9cf517d429958ace9

SHA256
95d2567356579eed4df3d0ef888e2c12b6006bb1d6296be4387ebb1b19f13866

SHA512
f7e8a3f61c5c658ca68cf9a19837f2fb381e2f5f05c3853464a5009f63d0c784547b3bdc65407fd4ffb0801ed08cba78e6463b91d02b41bf90ce5dcd29670da3

Download Submit
memory/580-119-0x0000000004B00000-0x0000000004B01000-memory.dmp

Filesize
4KB

Download
memory/580-123-0x00000000073B0000-0x00000000074E5000-memory.dmp

Filesize
1.2MB

Download
memory/580-124-0x00000000074F0000-0x00000000075E0000-memory.dmp

Filesize
960KB

Download
memory/580-122-0x0000000004EC0000-0x0000000004ECB000-memory.dmp

Filesize
44KB

Download
memory/580-121-0x0000000004AE0000-0x0000000004B7C000-memory.dmp

Filesize
624KB

Download
memory/580-120-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/580-114-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/580-118-0x0000000004C20000-0x0000000004C21000-memory.dmp

Filesize
4KB

Download
memory/580-117-0x00000000051D0000-0x00000000051D1000-memory.dmp

Filesize
4KB

Download
memory/580-116-0x0000000004B80000-0x0000000004B81000-memory.dmp

Filesize
4KB

Download
memory/2540-225-0x000000007E9B0000-0x000000007E9B1000-memory.dmp

Filesize
4KB

Download
memory/2540-160-0x0000000008010000-0x0000000008011000-memory.dmp

Filesize
4KB

Download
memory/2540-137-0x0000000000000000-mapping.dmp

Download
memory/2540-246-0x0000000007113000-0x0000000007114000-memory.dmp

Filesize
4KB

Download
memory/2540-169-0x0000000008730000-0x0000000008731000-memory.dmp

Filesize
4KB

Download
memory/2540-166-0x0000000008420000-0x0000000008421000-memory.dmp

Filesize
4KB

Download
memory/2540-148-0x0000000007110000-0x0000000007111000-memory.dmp

Filesize
4KB

Download
memory/2540-149-0x0000000007112000-0x0000000007113000-memory.dmp

Filesize
4KB

Download
memory/2540-163-0x0000000007F60000-0x0000000007F61000-memory.dmp

Filesize
4KB

Download
memory/2540-151-0x0000000007630000-0x0000000007631000-memory.dmp

Filesize
4KB

Download
memory/2668-150-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2668-139-0x000000000049D8CA-mapping.dmp

Download
memory/2668-138-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2912-154-0x0000000006C90000-0x0000000006C91000-memory.dmp

Filesize
4KB

Download
memory/2912-147-0x0000000006752000-0x0000000006753000-memory.dmp

Filesize
4KB

Download
memory/2912-146-0x0000000006750000-0x0000000006751000-memory.dmp

Filesize
4KB

Download
memory/2912-193-0x0000000008A80000-0x0000000008AB3000-memory.dmp

Filesize
204KB

Download
memory/2912-212-0x0000000008A40000-0x0000000008A41000-memory.dmp

Filesize
4KB

Download
memory/2912-228-0x000000007FD60000-0x000000007FD61000-memory.dmp

Filesize
4KB

Download
memory/2912-128-0x0000000000000000-mapping.dmp

Download
memory/2912-157-0x0000000006D00000-0x0000000006D01000-memory.dmp

Filesize
4KB

Download
memory/2912-245-0x0000000006753000-0x0000000006754000-memory.dmp

Filesize
4KB

Download
memory/3184-445-0x0000000000000000-mapping.dmp

Download
memory/3668-243-0x00000000044C3000-0x00000000044C4000-memory.dmp

Filesize
4KB

Download
memory/3668-145-0x00000000044C2000-0x00000000044C3000-memory.dmp

Filesize
4KB

Download
memory/3668-144-0x00000000044C0000-0x00000000044C1000-memory.dmp

Filesize
4KB

Download
memory/3668-131-0x0000000006EB0000-0x0000000006EB1000-memory.dmp

Filesize
4KB

Download
memory/3668-129-0x0000000004390000-0x0000000004391000-memory.dmp

Filesize
4KB

Download
memory/3668-231-0x000000007E340000-0x000000007E341000-memory.dmp

Filesize
4KB

Download
memory/3668-125-0x0000000000000000-mapping.dmp

Download
memory/3768-130-0x0000000000000000-mapping.dmp

Download