remcos | cb8db6079eda85eced81e830bc93137046d2380b1d9c6c09d7fa38b0d9d29400

General

Target

1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
Size

482KB
MD5

d0e8d2c098dae746762d3cdd0276497a
SHA1

a76857229e1e05ed5e8462a4d19ce0fbb9b1d72e
SHA256

cb8db6079eda85eced81e830bc93137046d2380b1d9c6c09d7fa38b0d9d29400
SHA512

78e92768ac998aeeb2d73fd503809be1867f99ba42902dba7f012337ae8d93646698a7f198da87d2b756413fa2b822b85a905de8d41a76b3c5e77ad366915be2
SSDEEP

12288:x13ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQLS:jak/mBXTV/R0nEF76gFZs

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

abeangana.duckdns.org:1121

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-B9B8CE
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
Remcos family
remcos

Detected Nirsoft tools 9 IoCs

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

resource	yara_rule
behavioral2/memory/1672-19-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4016-23-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4016-24-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1088-12-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1672-11-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1672-10-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1672-9-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1088-13-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1088-27-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4016-23-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4016-24-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1088-12-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1088-13-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1088-27-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4456 set thread context of 1088	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	82
PID 4456 set thread context of 4016	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	83
PID 4456 set thread context of 1672	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	84

System Location Discovery: System Language Discovery 1 TTPs 4 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	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1672	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
1672	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
1088	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
1088	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
1088	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
1088	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 1088	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	82
PID 4456 wrote to memory of 1088	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	82
PID 4456 wrote to memory of 1088	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	82
PID 4456 wrote to memory of 4016	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	83
PID 4456 wrote to memory of 4016	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	83
PID 4456 wrote to memory of 4016	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	83
PID 4456 wrote to memory of 1672	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	84
PID 4456 wrote to memory of 1672	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	84
PID 4456 wrote to memory of 1672	4456	1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe	84

C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
"C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\zyyljjgufavssreviqyrzhwrudpkwcg"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1088
- C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\badejcrobinxcxshzbksklradsztpnfwsf"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:4016
- C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\1737648243b8346c64f2ac7a267dc78c3715132da500f33a98444673179c841b871d904b59125.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\mujwkuc"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
4KB

MD5
57509a6a6267f17bef5e5da8b1df8829

SHA1
0886741be12c4e6dd24688df7b9568e91b2fc2aa

SHA256
4d50e4b2ee7b25d6a88dea6a28503975ca95f98e6e72fcd1ee754d016df3ed3d

SHA512
019c20a2354ef20ff3870ea4d544ae4e7ec21729bfbeb19d2dd2f8b087fcb6b83f259ab2f35e0f3c7f044ebb7c5bbfdfc63f23b811d458a15f5ad35aa9175228

Download Submit
memory/1088-3-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1088-6-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1088-27-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1088-13-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1088-12-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1672-5-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1672-19-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1672-8-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1672-16-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/1672-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1672-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1672-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4016-24-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4016-18-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4016-4-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4016-23-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4016-15-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4456-30-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4456-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4456-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4456-34-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4456-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4456-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4456-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

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