webmonitor | b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769

General

Target

b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
Size

1.1MB
MD5

4d08cd26844d557101ce21938812261c
SHA1

fce26de220032955493d70dfb7b2b3e9bf04d909
SHA256

b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769
SHA512

dcf1b8fed11f5b4bbc54e0e80bf5cda4cd7cf34bb2f478bbf4971a36d78bc6c7cb36b5e57539bc7bbc1445d476913dca818ef7cab208ef7da7beed17f2dd0809

Score

10^/10

webmonitor backdoor infostealer rat

Malware Config

Extracted

Family

webmonitor

C2

niiarmah.wm01.to:443

Attributes

config_key
4EcDHH7aWbl50LayUnuRlJWUXiKQWk0O
private_key
yvkn5wM8E
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 7 IoCs

resource	yara_rule
behavioral1/memory/2012-59-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2012-61-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2012-63-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2012-65-0x000000000049D8CA-mapping.dmp	family_webmonitor
behavioral1/memory/2012-69-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2012-71-0x0000000000400000-0x00000000004F3000-memory.dmp	family_webmonitor
behavioral1/memory/2012-78-0x00000000031A0000-0x00000000041A0000-memory.dmp	family_webmonitor

Executes dropped EXE 1 IoCs

pid	Process
2012	svhost.exe

Loads dropped DLL 2 IoCs

pid	Process
2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe

Unexpected DNS network traffic destination 3 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	185.243.215.214
Destination IP	185.243.215.214

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2016 set thread context of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
Token: 33	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
Token: SeIncBasePriorityPrivilege	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
Token: SeShutdownPrivilege	2012	svhost.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 2012	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	28
PID 2016 wrote to memory of 692	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	29
PID 2016 wrote to memory of 692	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	29
PID 2016 wrote to memory of 692	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	29
PID 2016 wrote to memory of 692	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	29
PID 2016 wrote to memory of 364	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	31
PID 2016 wrote to memory of 364	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	31
PID 2016 wrote to memory of 364	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	31
PID 2016 wrote to memory of 364	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	31
PID 364 wrote to memory of 652	364	cmd.exe	33
PID 364 wrote to memory of 652	364	cmd.exe	33
PID 364 wrote to memory of 652	364	cmd.exe	33
PID 364 wrote to memory of 652	364	cmd.exe	33
PID 2016 wrote to memory of 1496	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	34
PID 2016 wrote to memory of 1496	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	34
PID 2016 wrote to memory of 1496	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	34
PID 2016 wrote to memory of 1496	2016	b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe	34

C:\Users\Admin\AppData\Local\Temp\b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe
"C:\Users\Admin\AppData\Local\Temp\b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769.exe" "%appdata%\Mail\Mail Service.exe" /Y
  2⤵
  PID:692
- 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 "%appdata%\Mail\Mail Service.exe.lnk" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:364
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Mail\Mail Service.exe.lnk" /f
    3⤵
    PID:652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %appdata%\Mail\Mail Service.exe:Zone.Identifier
  2⤵
  PID:1496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\svhost.exe

Filesize
2.6MB

MD5
1f7bccc57d21a4bfeddaafe514cfd74d

SHA1
4dab09179a12468cb1757cb7ca26e06d616b0a8d

SHA256
d4cb7377e8275ed47e499ab0d7ee47167829a5931ba41aa5790593595a7e1061

SHA512
9e639c777dc2d456f038c14efb7cbc871ceb1d7380a74d18fb722a28901357ccb1166c0d883562280e030f0252004ca13a1371ea480d0523c435cd0a6d9f43d8

Download Submit
C:\Users\Admin\AppData\Roaming\Mail\Mail Service.exe

Filesize
1.1MB

MD5
4d08cd26844d557101ce21938812261c

SHA1
fce26de220032955493d70dfb7b2b3e9bf04d909

SHA256
b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769

SHA512
dcf1b8fed11f5b4bbc54e0e80bf5cda4cd7cf34bb2f478bbf4971a36d78bc6c7cb36b5e57539bc7bbc1445d476913dca818ef7cab208ef7da7beed17f2dd0809

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

Filesize
2.6MB

MD5
1f7bccc57d21a4bfeddaafe514cfd74d

SHA1
4dab09179a12468cb1757cb7ca26e06d616b0a8d

SHA256
d4cb7377e8275ed47e499ab0d7ee47167829a5931ba41aa5790593595a7e1061

SHA512
9e639c777dc2d456f038c14efb7cbc871ceb1d7380a74d18fb722a28901357ccb1166c0d883562280e030f0252004ca13a1371ea480d0523c435cd0a6d9f43d8

Download Submit
\Users\Admin\AppData\Roaming\Mail\Mail Service.exe

Filesize
1.1MB

MD5
4d08cd26844d557101ce21938812261c

SHA1
fce26de220032955493d70dfb7b2b3e9bf04d909

SHA256
b2c9e863e22409bbd43d7e3a43b6895081092124cb5c795a76272d7f392e1769

SHA512
dcf1b8fed11f5b4bbc54e0e80bf5cda4cd7cf34bb2f478bbf4971a36d78bc6c7cb36b5e57539bc7bbc1445d476913dca818ef7cab208ef7da7beed17f2dd0809

Download Submit
memory/2012-59-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-68-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download
memory/2012-69-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-71-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-63-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-61-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-57-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-56-0x0000000000400000-0x00000000004F3000-memory.dmp

Filesize
972KB

Download
memory/2012-78-0x00000000031A0000-0x00000000041A0000-memory.dmp

Filesize
16.0MB

Download
memory/2016-54-0x0000000000160000-0x000000000027E000-memory.dmp

Filesize
1.1MB

Download

Analysis

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