webmonitor | b4fbe906439597a3d05b94f3a7001069687e598cabc9a82e47d6c43046be10a5

General

Target

JANUARY OVERDUE INVOICE.pdf.exe
Size

1.5MB
MD5

f7d79ec6a3bf524f8f0c0e8d54949948
SHA1

ff9535613f977f6321a1eca20c50e97d23c83259
SHA256

b4fbe906439597a3d05b94f3a7001069687e598cabc9a82e47d6c43046be10a5
SHA512

27dd0344afe613f24147e08aa1208e0fbea2c6618a69a97e48b94a9f412b44273dfd268653dcaec7a83e7fdb10601b6c58ee90bc412601879308f69f7d5d2783

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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/576-12-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/576-13-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/576-15-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/576-16-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral1/memory/1668-6-0x00000000006B0000-0x00000000006B4000-memory.dmp	CustAttr

Suspicious use of SetThreadContext 1 IoCs

Processes:

JANUARY OVERDUE INVOICE.pdf.exe

description pid process target process

PID 1668 set thread context of 576 1668 JANUARY OVERDUE INVOICE.pdf.exe RegSvcs.exe
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

1500 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

JANUARY OVERDUE INVOICE.pdf.exe

pid process

1668 JANUARY OVERDUE INVOICE.pdf.exe
1668 JANUARY OVERDUE INVOICE.pdf.exe
1668 JANUARY OVERDUE INVOICE.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

JANUARY OVERDUE INVOICE.pdf.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1668 JANUARY OVERDUE INVOICE.pdf.exe
Token: SeShutdownPrivilege 576 RegSvcs.exe

description	pid	process	target process
PID 1668 set thread context of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe

pid	process
1500	schtasks.exe

pid	process
1668	JANUARY OVERDUE INVOICE.pdf.exe
1668	JANUARY OVERDUE INVOICE.pdf.exe
1668	JANUARY OVERDUE INVOICE.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1668	JANUARY OVERDUE INVOICE.pdf.exe
Token: SeShutdownPrivilege	576	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

JANUARY OVERDUE INVOICE.pdf.exe

description	pid	process	target process
PID 1668 wrote to memory of 1500	1668	JANUARY OVERDUE INVOICE.pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1500	1668	JANUARY OVERDUE INVOICE.pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1500	1668	JANUARY OVERDUE INVOICE.pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1500	1668	JANUARY OVERDUE INVOICE.pdf.exe	schtasks.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe
PID 1668 wrote to memory of 576	1668	JANUARY OVERDUE INVOICE.pdf.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\JANUARY OVERDUE INVOICE.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\JANUARY OVERDUE INVOICE.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LbDmDauhDnWnVS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1500
- 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
  PID:576

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEB0.tmp

MD5
40c2abe04e722370140730fe09f5c508

SHA1
bf92cc17c74ede6ea36938dc0c3ac7417dd825f4

SHA256
d5f09247abdaa637c3ca75ab68348a69376d042ca6fed2536c316244f623f689

SHA512
db37f625212f5c5c0f349a2f5d977c7916463fd5146220db4ff552349b6c57871ccd84ee4ffd701918852d71e3ab8630c93e5a5aa8bb99bbfd7c2e9465dadcef

Download Submit
memory/576-15-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/576-14-0x0000000074B31000-0x0000000074B33000-memory.dmp

Filesize
8KB

Download
memory/576-17-0x0000000002F30000-0x0000000003F30000-memory.dmp

Filesize
16.0MB

Download
memory/576-16-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/576-13-0x000000000049D8CA-mapping.dmp

Download
memory/576-12-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/840-18-0x000007FEF7080000-0x000007FEF72FA000-memory.dmp

Filesize
2.5MB

Download
memory/1500-10-0x0000000000000000-mapping.dmp

Download
memory/1668-5-0x0000000001230000-0x0000000001231000-memory.dmp

Filesize
4KB

Download
memory/1668-9-0x0000000005340000-0x0000000005439000-memory.dmp

Filesize
996KB

Download
memory/1668-8-0x0000000005250000-0x000000000533D000-memory.dmp

Filesize
948KB

Download
memory/1668-3-0x0000000001270000-0x0000000001271000-memory.dmp

Filesize
4KB

Download
memory/1668-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-7-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/1668-6-0x00000000006B0000-0x00000000006B4000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads