webmonitor | 2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016

General

Target

2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe
Size

546KB
MD5

ea8bd15c924883beb0675399bc9e790a
SHA1

0b18ec8eaa1b11315be4d08618f2df14d60a9be1
SHA256

2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016
SHA512

7d0c8cadee1a10cdcc039603a114f39cbf9b514a90d98f3142eb300bd73082672e7dae7cc2611f28e89175d600964a7f81cfd5c045b92212cd1dff5ee1665ce6

Score

10^/10

webmonitor backdoor infostealer persistence rat suricata upx

Malware Config

Extracted

Family

webmonitor

C2

roxter666.wm01.to:443

Attributes

config_key
9rwqIhLhP1v4mc4fDkpMWCPyZZA3jLtP
private_key
ifcSJLpGN
url_path
/recv5.php

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
behavioral1/memory/324-68-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor
behavioral1/memory/324-63-0x00000000004F4AE0-mapping.dmp	family_webmonitor
behavioral1/memory/324-69-0x0000000000400000-0x00000000004F6000-memory.dmp	family_webmonitor

suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
suricata

Executes dropped EXE 1 IoCs

pid	Process
324	svhost.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/324-59-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/324-65-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/324-67-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/324-68-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/324-62-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/324-61-0x0000000000400000-0x00000000004F6000-memory.dmp	upx
behavioral1/memory/324-69-0x0000000000400000-0x00000000004F6000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe
1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe

Unexpected DNS network traffic destination 9 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	185.243.215.214
Destination IP	1.2.4.8
Destination IP	185.243.215.214
Destination IP	114.114.114.114
Destination IP	185.243.215.214
Destination IP	185.243.215.214
Destination IP	185.243.215.214
Destination IP	114.114.114.114
Destination IP	1.2.4.8

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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-b5f1 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-b5f1.exe"	svhost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28

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

System Information Discovery
T1082

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe
1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe
Token: SeShutdownPrivilege	324	svhost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 324	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	28
PID 1968 wrote to memory of 940	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	35
PID 1968 wrote to memory of 940	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	35
PID 1968 wrote to memory of 940	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	35
PID 1968 wrote to memory of 940	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	35
PID 1968 wrote to memory of 1360	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	29
PID 1968 wrote to memory of 1360	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	29
PID 1968 wrote to memory of 1360	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	29
PID 1968 wrote to memory of 1360	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	29
PID 1360 wrote to memory of 1980	1360	cmd.exe	30
PID 1360 wrote to memory of 1980	1360	cmd.exe	30
PID 1360 wrote to memory of 1980	1360	cmd.exe	30
PID 1360 wrote to memory of 1980	1360	cmd.exe	30
PID 1968 wrote to memory of 648	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	32
PID 1968 wrote to memory of 648	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	32
PID 1968 wrote to memory of 648	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	32
PID 1968 wrote to memory of 648	1968	2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe	32

C:\Users\Admin\AppData\Local\Temp\2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe
"C:\Users\Admin\AppData\Local\Temp\2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "%temp%\FolderN\name.exe.lnk" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.lnk" /f
    3⤵
    PID:1980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\FolderN\name.exe:Zone.Identifier
  2⤵
  - NTFS ADS
  PID:648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016.exe" "%temp%\FolderN\name.exe" /Y
  2⤵
  PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe

Filesize
546KB

MD5
ea8bd15c924883beb0675399bc9e790a

SHA1
0b18ec8eaa1b11315be4d08618f2df14d60a9be1

SHA256
2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016

SHA512
7d0c8cadee1a10cdcc039603a114f39cbf9b514a90d98f3142eb300bd73082672e7dae7cc2611f28e89175d600964a7f81cfd5c045b92212cd1dff5ee1665ce6

Download Submit
C:\Users\Admin\AppData\Local\Temp\svhost.exe

Filesize
2.6MB

MD5
1f7bccc57d21a4bfeddaafe514cfd74d

SHA1
4dab09179a12468cb1757cb7ca26e06d616b0a8d

SHA256
d4cb7377e8275ed47e499ab0d7ee47167829a5931ba41aa5790593595a7e1061

SHA512
9e639c777dc2d456f038c14efb7cbc871ceb1d7380a74d18fb722a28901357ccb1166c0d883562280e030f0252004ca13a1371ea480d0523c435cd0a6d9f43d8

Download Submit
\Users\Admin\AppData\Local\Temp\FolderN\name.exe

Filesize
546KB

MD5
ea8bd15c924883beb0675399bc9e790a

SHA1
0b18ec8eaa1b11315be4d08618f2df14d60a9be1

SHA256
2699fd4e118ec814f98e7b62546f8d4d10b28fbef3cafe4442a920d81f6a9016

SHA512
7d0c8cadee1a10cdcc039603a114f39cbf9b514a90d98f3142eb300bd73082672e7dae7cc2611f28e89175d600964a7f81cfd5c045b92212cd1dff5ee1665ce6

Download Submit
\Users\Admin\AppData\Local\Temp\svhost.exe

Filesize
2.6MB

MD5
1f7bccc57d21a4bfeddaafe514cfd74d

SHA1
4dab09179a12468cb1757cb7ca26e06d616b0a8d

SHA256
d4cb7377e8275ed47e499ab0d7ee47167829a5931ba41aa5790593595a7e1061

SHA512
9e639c777dc2d456f038c14efb7cbc871ceb1d7380a74d18fb722a28901357ccb1166c0d883562280e030f0252004ca13a1371ea480d0523c435cd0a6d9f43d8

Download Submit
memory/324-61-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-69-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-68-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-65-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-62-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-76-0x00000000030C0000-0x00000000040C0000-memory.dmp

Filesize
16.0MB

Download
memory/324-58-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-59-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/324-67-0x0000000000400000-0x00000000004F6000-memory.dmp

Filesize
984KB

Download
memory/1968-56-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

Filesize
8KB

Download
memory/1968-55-0x0000000004600000-0x0000000004664000-memory.dmp

Filesize
400KB

Download
memory/1968-54-0x0000000000980000-0x0000000000A0E000-memory.dmp

Filesize
568KB

Download

Analysis

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