remcos | d0b3a869d6b24ab7a223cc2b74d8be81f5071e36397fcf64c110a332fc6e0f0c

General

Target

sample order.scr.exe
Size

1.2MB
MD5

4334fe2b2fc94acca8388291eece9ac8
SHA1

6eaff5e2672fbbdfd46b503365dbdc02ae668407
SHA256

d0b3a869d6b24ab7a223cc2b74d8be81f5071e36397fcf64c110a332fc6e0f0c
SHA512

4b721851b3ec1e888f5570f42fdc81410af6d251511b08ed246bb7dac6f6ff160f8630fa9750ffe09ea2e441f8e35c47681d7c827da32f772a29de2530b5ec72
SSDEEP

24576:Z1r1uXqY/jeTNSpOvDfB835LoipEUvJJD:Z7uXcNSU7J8tpEU

Score

10^/10

remcos ip-remcos collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

IP-REMCOS

C2

91.192.100.12:2404

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-JS00ZN
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 1 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/3008-155-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/4528-156-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4528-157-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3008-155-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/4528-156-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4528-157-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

sample order.scr.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	sample order.scr.exe

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 1 IoCs

collection

Email Collection

T1114

Processes:

sample order.scr.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	sample order.scr.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

sample order.scr.exesample order.scr.exe

description	pid	process	target process
PID 2296 set thread context of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 1004 set thread context of 4528	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 set thread context of 3008	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 set thread context of 4452	1004	sample order.scr.exe	sample order.scr.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2392 4452 WerFault.exe sample order.scr.exe
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

968 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exesample order.scr.exe

pid process

4416 powershell.exe
4416 powershell.exe
4528 sample order.scr.exe
4528 sample order.scr.exe
4528 sample order.scr.exe
4528 sample order.scr.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

sample order.scr.exe

pid process

1004 sample order.scr.exe
1004 sample order.scr.exe
1004 sample order.scr.exe
1004 sample order.scr.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4416 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sample order.scr.exe

pid process

1004 sample order.scr.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

sample order.scr.exe

pid process

4452 sample order.scr.exe

pid	pid_target	process	target process
2392	4452	WerFault.exe	sample order.scr.exe

pid	process
968	schtasks.exe

pid	process
4416	powershell.exe
4416	powershell.exe
4528	sample order.scr.exe
4528	sample order.scr.exe
4528	sample order.scr.exe
4528	sample order.scr.exe

pid	process
1004	sample order.scr.exe
1004	sample order.scr.exe
1004	sample order.scr.exe
1004	sample order.scr.exe

description	pid	process
Token: SeDebugPrivilege	4416	powershell.exe

pid	process
1004	sample order.scr.exe

pid	process
4452	sample order.scr.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

sample order.scr.exesample order.scr.exe

description	pid	process	target process
PID 2296 wrote to memory of 4416	2296	sample order.scr.exe	powershell.exe
PID 2296 wrote to memory of 4416	2296	sample order.scr.exe	powershell.exe
PID 2296 wrote to memory of 4416	2296	sample order.scr.exe	powershell.exe
PID 2296 wrote to memory of 968	2296	sample order.scr.exe	schtasks.exe
PID 2296 wrote to memory of 968	2296	sample order.scr.exe	schtasks.exe
PID 2296 wrote to memory of 968	2296	sample order.scr.exe	schtasks.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 2296 wrote to memory of 1004	2296	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4256	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4256	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4256	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4528	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4528	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4528	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4528	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 3008	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 3008	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 3008	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 3008	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4452	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4452	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4452	1004	sample order.scr.exe	sample order.scr.exe
PID 1004 wrote to memory of 4452	1004	sample order.scr.exe	sample order.scr.exe

C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2296

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\icsOakcPSkFF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4416

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\icsOakcPSkFF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E4C.tmp"
2⤵
- Creates scheduled task(s)
PID:968

C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1004

C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\zjpsyainqxhncm"
3⤵
PID:4256

C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\zjpsyainqxhncm"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:4528

C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\kdukzsshefzafssdt"
3⤵
- Accesses Microsoft Outlook accounts
PID:3008

C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\sample order.scr.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ufivzllisnsfpzghdjjr"
3⤵
- Suspicious use of UnmapMainImage
PID:4452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 12
4⤵
- Program crash
PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4452 -ip 4452
1⤵
PID:1756

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

Credentials in Files

1

T1081

Discovery

Query Registry

1

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\tmp5E4C.tmp
Filesize
1KB

MD5
fa3b4d900521e927434a549a50f8fa2b

SHA1
cedec9ff48b978c9f01650cb81a672f49364d9e8

SHA256
142a3d58e34a795939dc978e3657211d8584e90b131be7d0c4cc0a0bf3aae66f

SHA512
49727b03501b7f679c70c825cee3ed5914c34d0467eb6dcd2c108a3c8774a745cd00df9b04869b96c730995c23424ab89bfb906acf3515a0700a9f50f18545a3

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

MD5
952a930b9fe70f809a67cb4e765c9448

SHA1
7e6c235246cc1be14d8a01ee7688a2a2471d44c9

SHA256
bd8156713974af3003c418302d3647fa84f62836fe83613c05e8bc40cb06a867

SHA512
10d12f2412fd2cb9ecf47cccd0261b17d9a3323957602c06795c4b2244306837d0a979ec6e552dc023ee81719ebcb9455bdb6f9d44f07788664994d1498452fb

Download Submit
memory/968-139-0x0000000000000000-mapping.dmp

Download
memory/1004-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-143-0x0000000000000000-mapping.dmp

Download
memory/1004-149-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-169-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2296-135-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/2296-133-0x0000000005990000-0x0000000005F34000-memory.dmp

Filesize
5.6MB

Download
memory/2296-132-0x0000000000A00000-0x0000000000B38000-memory.dmp

Filesize
1.2MB

Download
memory/2296-134-0x00000000054C0000-0x0000000005552000-memory.dmp

Filesize
584KB

Download
memory/2296-136-0x000000000A4C0000-0x000000000A55C000-memory.dmp

Filesize
624KB

Download
memory/2296-137-0x000000000A6D0000-0x000000000A736000-memory.dmp

Filesize
408KB

Download
memory/3008-155-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3008-153-0x0000000000000000-mapping.dmp

Download
memory/4256-151-0x0000000000000000-mapping.dmp

Download
memory/4416-150-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

Filesize
120KB

Download
memory/4416-159-0x0000000006170000-0x00000000061A2000-memory.dmp

Filesize
200KB

Download
memory/4416-138-0x0000000000000000-mapping.dmp

Download
memory/4416-147-0x0000000005320000-0x0000000005342000-memory.dmp

Filesize
136KB

Download
memory/4416-168-0x00000000071D0000-0x00000000071D8000-memory.dmp

Filesize
32KB

Download
memory/4416-142-0x0000000004CC0000-0x00000000052E8000-memory.dmp

Filesize
6.2MB

Download
memory/4416-167-0x00000000071F0000-0x000000000720A000-memory.dmp

Filesize
104KB

Download
memory/4416-166-0x00000000070E0000-0x00000000070EE000-memory.dmp

Filesize
56KB

Download
memory/4416-140-0x0000000004650000-0x0000000004686000-memory.dmp

Filesize
216KB

Download
memory/4416-148-0x00000000054D0000-0x0000000005536000-memory.dmp

Filesize
408KB

Download
memory/4416-160-0x0000000070C90000-0x0000000070CDC000-memory.dmp

Filesize
304KB

Download
memory/4416-161-0x0000000006150000-0x000000000616E000-memory.dmp

Filesize
120KB

Download
memory/4416-162-0x0000000007500000-0x0000000007B7A000-memory.dmp

Filesize
6.5MB

Download
memory/4416-163-0x0000000006EB0000-0x0000000006ECA000-memory.dmp

Filesize
104KB

Download
memory/4416-164-0x0000000006F30000-0x0000000006F3A000-memory.dmp

Filesize
40KB

Download
memory/4416-165-0x0000000007130000-0x00000000071C6000-memory.dmp

Filesize
600KB

Download
memory/4452-154-0x0000000000000000-mapping.dmp

Download
memory/4528-157-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4528-156-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4528-152-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads