remcos | e87c654b129af4a7012d6191873a5baaa3d122902bdeae57e110844be145b44e

General

Target

Enquiry #2601.exe
Size

1.1MB
MD5

1539be715cb0839ba641cb081ab4f4af
SHA1

f45c233301c64df2a58a08211e78eaa5ff546a01
SHA256

e87c654b129af4a7012d6191873a5baaa3d122902bdeae57e110844be145b44e
SHA512

b8f7bbeea1acabaf644f055386f07d3c4f5588790e155948900aefc0185bb95a10e8e18997c5c8f4aa289f97f2f3269e399ff74e48388559fccb5543f3872106

Score

10^/10

remcos zara stub rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

zara stub

C2

185.140.53.178:2404

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-3B07AK
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Suspicious use of SetThreadContext 1 IoCs

Processes:

Enquiry #2601.exe

description pid process target process

PID 1648 set thread context of 1944 1648 Enquiry #2601.exe Enquiry #2601.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

1496 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Enquiry #2601.exepowershell.exe

pid process

1648 Enquiry #2601.exe
1648 Enquiry #2601.exe
1648 Enquiry #2601.exe
1500 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Enquiry #2601.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1648 Enquiry #2601.exe
Token: SeDebugPrivilege 1500 powershell.exe

description	pid	process	target process
PID 1648 set thread context of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe

pid	process
1496	schtasks.exe

pid	process
1648	Enquiry #2601.exe
1648	Enquiry #2601.exe
1648	Enquiry #2601.exe
1500	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1648	Enquiry #2601.exe
Token: SeDebugPrivilege	1500	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Enquiry #2601.exe

description	pid	process	target process
PID 1648 wrote to memory of 1500	1648	Enquiry #2601.exe	powershell.exe
PID 1648 wrote to memory of 1500	1648	Enquiry #2601.exe	powershell.exe
PID 1648 wrote to memory of 1500	1648	Enquiry #2601.exe	powershell.exe
PID 1648 wrote to memory of 1500	1648	Enquiry #2601.exe	powershell.exe
PID 1648 wrote to memory of 1496	1648	Enquiry #2601.exe	schtasks.exe
PID 1648 wrote to memory of 1496	1648	Enquiry #2601.exe	schtasks.exe
PID 1648 wrote to memory of 1496	1648	Enquiry #2601.exe	schtasks.exe
PID 1648 wrote to memory of 1496	1648	Enquiry #2601.exe	schtasks.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe
PID 1648 wrote to memory of 1944	1648	Enquiry #2601.exe	Enquiry #2601.exe

C:\Users\Admin\AppData\Local\Temp\Enquiry #2601.exe
"C:\Users\Admin\AppData\Local\Temp\Enquiry #2601.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1648

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qevrNTaIPpVdf.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1500

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qevrNTaIPpVdf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD44F.tmp"
2⤵
- Creates scheduled task(s)
PID:1496

C:\Users\Admin\AppData\Local\Temp\Enquiry #2601.exe
"C:\Users\Admin\AppData\Local\Temp\Enquiry #2601.exe"
2⤵
PID:1944

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD44F.tmp
MD5
edfe64bccf41beaeef50da2d6d27d1d2

SHA1
5a774ea05ca349b1c700ad4a1529fd2a485436aa

SHA256
f093674bd6e51ce9420bff5d020d957824960535e074cb7f53dd5884e0dee330

SHA512
feea26c610dce505c10a5b05863e8c5474d602719c9d74261e12ea50a9df29d12eedddadfe7dc09110d27d5bfbfb0fdeedc822c4c075fd3b4ee0670b87a5f7bb

Download Submit
memory/1500-73-0x0000000002410000-0x000000000305A000-memory.dmp

Filesize
12.3MB

Download
memory/1500-75-0x0000000002410000-0x000000000305A000-memory.dmp

Filesize
12.3MB

Download
memory/1500-74-0x0000000002410000-0x000000000305A000-memory.dmp

Filesize
12.3MB

Download
memory/1648-55-0x0000000076001000-0x0000000076003000-memory.dmp

Filesize
8KB

Download
memory/1648-56-0x0000000000F20000-0x0000000000F21000-memory.dmp

Filesize
4KB

Download
memory/1648-57-0x00000000002D0000-0x00000000002DC000-memory.dmp

Filesize
48KB

Download
memory/1648-58-0x00000000058B0000-0x0000000005976000-memory.dmp

Filesize
792KB

Download
memory/1648-54-0x0000000001160000-0x000000000127A000-memory.dmp

Filesize
1.1MB

Download
memory/1944-65-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-67-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-68-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-69-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-71-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-70-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-66-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-64-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-63-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1944-76-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads