remcos | 52f0c3471e31cea46fd5776acf896e557c3da55dc8966349b3939c51e3b6b82d

Analysis

max time kernel
150s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 12:47

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General

Target

Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
Size

1.2MB
MD5

b050247ddb99e9969eabeba8b76eb491
SHA1

f899f777ee2827f7dc997dba67681936835acb3d
SHA256

52f0c3471e31cea46fd5776acf896e557c3da55dc8966349b3939c51e3b6b82d
SHA512

a909645475030ddf5f07853a7d6315dce996738d662539757c3fbe4e19c4c153e120e8add7ae6ff1532e6e56160c7acd1b13d63eba5e65a1943d5954211d438e
SSDEEP

24576:xtb20pkaCqT5TBWgNQ7ay2js14tXE/D1Si5EGjN6A:CVg5tQ7ay2j9ED+GB5

Score

10^/10

remcos edbra collection credential_access discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

edbra

185.150.191.117:4609

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-5BA7PB
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 8 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/3172-53-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3172-59-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3172-60-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3216-58-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2456-54-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2456-50-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3216-49-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2456-62-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3172-53-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3172-59-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3172-60-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2456-54-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2456-50-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2456-62-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\poufs.vbs	poufs.exe

Executes dropped EXE 4 IoCs

pid	Process
1672	poufs.exe
2456	poufs.exe
3216	poufs.exe
3172	poufs.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
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	poufs.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0003000000022cc6-13.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1672 set thread context of 2456	1672	poufs.exe	92
PID 1672 set thread context of 3172	1672	poufs.exe	93
PID 1672 set thread context of 3216	1672	poufs.exe	94

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	poufs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	poufs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	poufs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	poufs.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2456	poufs.exe
2456	poufs.exe
3216	poufs.exe
3216	poufs.exe
2456	poufs.exe
2456	poufs.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1672	poufs.exe
1672	poufs.exe
1672	poufs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3216	poufs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
1672	poufs.exe
1672	poufs.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
1672	poufs.exe
1672	poufs.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 1672	2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe	86
PID 2880 wrote to memory of 1672	2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe	86
PID 2880 wrote to memory of 1672	2880	Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe	86
PID 1672 wrote to memory of 2456	1672	poufs.exe	92
PID 1672 wrote to memory of 2456	1672	poufs.exe	92
PID 1672 wrote to memory of 2456	1672	poufs.exe	92
PID 1672 wrote to memory of 2456	1672	poufs.exe	92
PID 1672 wrote to memory of 3172	1672	poufs.exe	93
PID 1672 wrote to memory of 3172	1672	poufs.exe	93
PID 1672 wrote to memory of 3172	1672	poufs.exe	93
PID 1672 wrote to memory of 3172	1672	poufs.exe	93
PID 1672 wrote to memory of 3216	1672	poufs.exe	94
PID 1672 wrote to memory of 3216	1672	poufs.exe	94
PID 1672 wrote to memory of 3216	1672	poufs.exe	94
PID 1672 wrote to memory of 3216	1672	poufs.exe	94

C:\Users\Admin\AppData\Local\Temp\Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe
"C:\Users\Admin\AppData\Local\Temp\Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe
  "C:\Users\Admin\AppData\Local\Temp\Virus.Danger.ATA_virussign.com_b050247ddb99e9969eabeba8b76eb491.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe
    C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe /stext "C:\Users\Admin\AppData\Local\Temp\kzmmoagedufzvhoufgvyqh"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2456
- - C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe
    C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe /stext "C:\Users\Admin\AppData\Local\Temp\vtrxotzfzcxeywkgxriatmtapa"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:3172
- - C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe
    C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe /stext "C:\Users\Admin\AppData\Local\Temp\fnxpplkznkpjicykgcvtezorxglbz"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kzmmoagedufzvhoufgvyqh

Filesize
4KB

MD5
1891919175c888ce82e9bd8a047b01ad

SHA1
502a6892a5d27ecb791ac5aa6d8586944f540453

SHA256
a6c43b4e4b8681cf0ef56c49c730fa77e34dc82db0260253a3ba75039030b9ec

SHA512
8bb940050b1abf6c27db133ed446f41e108f670f361ed5102408832ce33d9b87cd0880723441f1632292eeeb0a319c4e0fac0ea659eb55ebe1130cc3e6c776a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\spiketop

Filesize
58KB

MD5
8031ba8108d6d6b6418b6404b68cb53b

SHA1
c4dd578af0c4eed634395757aebc9ce5ffd4df21

SHA256
426212d21bda6cee0738aba3a07e9fa56af1c4d96140449bc769099f26f2fe8a

SHA512
500345b9324235ccb455cf3b4e306cd5f193f81dcf935e08e3d64d7d0a5978dda162be899b50cec8c3bd2f00746af14b3e29070707d33d4022d4a859ec597ca0

Download Submit
C:\Users\Admin\AppData\Local\peristeromorphous\poufs.exe

Filesize
1.2MB

MD5
b050247ddb99e9969eabeba8b76eb491

SHA1
f899f777ee2827f7dc997dba67681936835acb3d

SHA256
52f0c3471e31cea46fd5776acf896e557c3da55dc8966349b3939c51e3b6b82d

SHA512
a909645475030ddf5f07853a7d6315dce996738d662539757c3fbe4e19c4c153e120e8add7ae6ff1532e6e56160c7acd1b13d63eba5e65a1943d5954211d438e

Download Submit
memory/1672-67-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1672-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-68-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1672-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1672-64-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2456-39-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2456-50-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2456-43-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2456-54-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2456-62-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2880-10-0x0000000001760000-0x0000000001764000-memory.dmp

Filesize
16KB

Download
memory/3172-52-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3172-60-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3172-59-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3172-53-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3172-42-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3216-48-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3216-58-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3216-49-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3216-44-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download