webmonitor | f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41

General

Target

f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe
Size

474KB
MD5

625ded2dda29d1d3455f780d2f9dcd95
SHA1

97fabd1f49828704a6e9f48d1e2b3d2c0c323be4
SHA256

f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41
SHA512

fbb6095a6ab79ab502ef6a63ed14bdc558da17ee8f4a962aad8dbb807c5ff4029feecb21b70f3df682830d0e8c1d7b88652cc41b233d0ddbe9754d27c13e7d38

Score

10^/10

webmonitor backdoor infostealer persistence rat upx

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

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1288-116-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/1288-118-0x0000000000400000-0x00000000004C1000-memory.dmp	upx

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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\WebMonitor-48c4 = "C:\\Users\\Admin\\AppData\\Roaming\\WebMonitor-48c4.exe휀"	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2472	2116	WerFault.exe	15

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe
2472	WerFault.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1288	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	2472	WerFault.exe
Token: SeBackupPrivilege	2472	WerFault.exe
Token: SeDebugPrivilege	2472	WerFault.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74
PID 2116 wrote to memory of 1288	2116	f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe	74

C:\Users\Admin\AppData\Local\Temp\f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe
"C:\Users\Admin\AppData\Local\Temp\f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Users\Admin\AppData\Local\Temp\f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe
  "C:\Users\Admin\AppData\Local\Temp\f31acaa61eb7564b39d01aec2e7c176ca774334ea611aec8ffbf712a0c209a41.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: RenamesItself
  PID:1288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 468
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2472

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1288-116-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1288-118-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

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