remcos | 788a6a0d67e10a4235043d0f12cc5841ab77bac0518842aea964e720318f674d

General

Target

NEW INQUIRY DATA.exe
Size

999KB
MD5

785014113a10b77c79af5d6cc0eb4c0e
SHA1

18fc67728a7151c38d1b3c754a73444c1c9089f5
SHA256

788a6a0d67e10a4235043d0f12cc5841ab77bac0518842aea964e720318f674d
SHA512

d4344156a1d55613cbcf09571b08938a188d065cbedec2a8e8a4355611f467ff9396d4704cdf0d2a728054d2f280817d13377449e80b754ee9df1e1a1e245b56
SSDEEP

12288:chZ2L+SDNjt8C9sdGfgth88mUbeMhqcfC8QPztJ/Pd6bG5zUWlP4NBu0rpEZpa1D:IsrB9CwgtAUSMTkJ/8bGANrD6Q5Ew

Score

10^/10

remcos new rem stub collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

C2

valvesco.duckdns.org:5050

Attributes

audio_folder
MicRecords
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-48V73L
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

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/4108-147-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral2/memory/4556-157-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/4364-149-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4364-150-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/544-158-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4108-147-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/4156-148-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4364-149-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4364-150-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4556-157-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/544-158-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1968-159-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook accounts 1 TTPs 2 IoCs

collection

Email Collection

T1114

Processes:

NEW INQUIRY DATA.exeNEW INQUIRY DATA.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	NEW INQUIRY DATA.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	NEW INQUIRY DATA.exe

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{EEA57F4F-0BEC-4BF9-A97D-ACC5FBE77666}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{836566E6-E0EF-4D79-90F3-B53B7771A4F6}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 7 IoCs

Processes:

NEW INQUIRY DATA.exeNEW INQUIRY DATA.exe

description	pid	process	target process
PID 2228 set thread context of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 set thread context of 4364	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 set thread context of 4108	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 set thread context of 4156	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 set thread context of 544	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 set thread context of 4556	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 set thread context of 1968	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

NEW INQUIRY DATA.exeNEW INQUIRY DATA.exeNEW INQUIRY DATA.exeNEW INQUIRY DATA.exeNEW INQUIRY DATA.exe

pid	process
2228	NEW INQUIRY DATA.exe
2228	NEW INQUIRY DATA.exe
4364	NEW INQUIRY DATA.exe
4364	NEW INQUIRY DATA.exe
4156	NEW INQUIRY DATA.exe
4156	NEW INQUIRY DATA.exe
4364	NEW INQUIRY DATA.exe
4364	NEW INQUIRY DATA.exe
544	NEW INQUIRY DATA.exe
544	NEW INQUIRY DATA.exe
544	NEW INQUIRY DATA.exe
544	NEW INQUIRY DATA.exe
1968	NEW INQUIRY DATA.exe
1968	NEW INQUIRY DATA.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

NEW INQUIRY DATA.exe

pid	process
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe
528	NEW INQUIRY DATA.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

NEW INQUIRY DATA.exeNEW INQUIRY DATA.exeNEW INQUIRY DATA.exe

description	pid	process
Token: SeDebugPrivilege	2228	NEW INQUIRY DATA.exe
Token: SeDebugPrivilege	4156	NEW INQUIRY DATA.exe
Token: SeDebugPrivilege	1968	NEW INQUIRY DATA.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

NEW INQUIRY DATA.exe

pid process

528 NEW INQUIRY DATA.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

NEW INQUIRY DATA.exeNEW INQUIRY DATA.exe

description	pid	process	target process
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 2228 wrote to memory of 528	2228	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 2472	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 2472	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 2472	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4364	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4364	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4364	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4364	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4108	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4108	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4108	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4108	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4156	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4156	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4156	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4156	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 544	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 544	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 544	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 544	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1120	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1120	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1120	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4556	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4556	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4556	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 4556	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1968	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1968	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1968	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe
PID 528 wrote to memory of 1968	528	NEW INQUIRY DATA.exe	NEW INQUIRY DATA.exe

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:528

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pennfd"
3⤵
PID:2472

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pennfd"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:4364

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\zgtxgvqgbq"
3⤵
- Accesses Microsoft Outlook accounts
PID:4108

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\kagqyobipyyjz"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4156

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\qrtxqvsd"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:544

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\amzijodfymt"
3⤵
PID:1120

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\amzijodfymt"
3⤵
- Accesses Microsoft Outlook accounts
PID:4556

C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe
"C:\Users\Admin\AppData\Local\Temp\NEW INQUIRY DATA.exe" /stext "C:\Users\Admin\AppData\Local\Temp\loeajgnymuljllg"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1968

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:4496

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\pennfd
Filesize
4KB

MD5
d06ebab8b0513f602e535079a9ebbeea

SHA1
d29472e6eb5a72f0353d70b97a33337b255b487e

SHA256
0c9e16830ccc6495def187adde2137ac07a566e1534e5714f626dcd68d28094c

SHA512
002df6f401950fd24d5976a47c58e9e2c58cef7d4fdec69f815fb6a00fb1e1a8963a4a7bf52056e61d6f6875edec393c466742c3031dd5f88802b45ddadca209

Download Submit
C:\Users\Admin\AppData\Local\Temp\qrtxqvsd
Filesize
4KB

MD5
d06ebab8b0513f602e535079a9ebbeea

SHA1
d29472e6eb5a72f0353d70b97a33337b255b487e

SHA256
0c9e16830ccc6495def187adde2137ac07a566e1534e5714f626dcd68d28094c

SHA512
002df6f401950fd24d5976a47c58e9e2c58cef7d4fdec69f815fb6a00fb1e1a8963a4a7bf52056e61d6f6875edec393c466742c3031dd5f88802b45ddadca209

Download Submit
memory/528-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/528-152-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/528-142-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/528-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/528-138-0x0000000000000000-mapping.dmp

Download
memory/528-139-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/544-153-0x0000000000000000-mapping.dmp

Download
memory/544-158-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1120-154-0x0000000000000000-mapping.dmp

Download
memory/1968-159-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1968-156-0x0000000000000000-mapping.dmp

Download
memory/2228-135-0x0000000005180000-0x000000000518A000-memory.dmp

Filesize
40KB

Download
memory/2228-133-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download
memory/2228-137-0x0000000007DB0000-0x0000000007E16000-memory.dmp

Filesize
408KB

Download
memory/2228-134-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/2228-132-0x0000000000630000-0x000000000072E000-memory.dmp

Filesize
1016KB

Download
memory/2228-136-0x0000000007B50000-0x0000000007BEC000-memory.dmp

Filesize
624KB

Download
memory/2472-143-0x0000000000000000-mapping.dmp

Download
memory/4108-147-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4108-145-0x0000000000000000-mapping.dmp

Download
memory/4156-148-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4156-146-0x0000000000000000-mapping.dmp

Download
memory/4364-149-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4364-144-0x0000000000000000-mapping.dmp

Download
memory/4364-150-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4556-157-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4556-155-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads