remcos | 605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69

General

Target

605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe
Size

1.2MB
MD5

2efac867c82992b9da1e063c6f32e4e1
SHA1

86654c0528c1c7708439db0369ea0c16fa1558c4
SHA256

605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69
SHA512

7795a73770c883ec2a51e429362503959c2dad89213eaf3788bbe4abc548d298e0b0b63411a7f5fad4879a079ff2a0d25039a068b51aeedc1e5ea5131cb32c4f
SSDEEP

24576:Mu6J33O0c+JY5UZ+XC0kGso6FaEfnZhnhtx60Pd4LuEsk6OVSmWY:Wu0c++OCvkGs9FaEfnXhtxp4LuK6OIY

Score

10^/10

remcos remotehost collection discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:45111

196.251.92.84:45111

ikechi2.duckdns.org:45111

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-ZKI7L3
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
Remcos family
remcos

Detected Nirsoft tools 9 IoCs

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

resource	yara_rule
behavioral1/memory/2744-38-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2744-41-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2720-40-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/2744-42-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2192-39-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2192-32-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2720-31-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/2192-47-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2720-49-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2720-40-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/2720-31-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/2720-49-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2192-39-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2192-32-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2192-47-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	svchost.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 2804	2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe	30
PID 2804 set thread context of 2192	2804	svchost.exe	31
PID 2804 set thread context of 2720	2804	svchost.exe	32
PID 2804 set thread context of 2744	2804	svchost.exe	33

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2192	svchost.exe
2192	svchost.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe
2804	svchost.exe
2804	svchost.exe
2804	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe
2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe
2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2804	2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe	30
PID 2100 wrote to memory of 2804	2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe	30
PID 2100 wrote to memory of 2804	2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe	30
PID 2100 wrote to memory of 2804	2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe	30
PID 2100 wrote to memory of 2804	2100	605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe	30
PID 2804 wrote to memory of 2192	2804	svchost.exe	31
PID 2804 wrote to memory of 2192	2804	svchost.exe	31
PID 2804 wrote to memory of 2192	2804	svchost.exe	31
PID 2804 wrote to memory of 2192	2804	svchost.exe	31
PID 2804 wrote to memory of 2192	2804	svchost.exe	31
PID 2804 wrote to memory of 2720	2804	svchost.exe	32
PID 2804 wrote to memory of 2720	2804	svchost.exe	32
PID 2804 wrote to memory of 2720	2804	svchost.exe	32
PID 2804 wrote to memory of 2720	2804	svchost.exe	32
PID 2804 wrote to memory of 2720	2804	svchost.exe	32
PID 2804 wrote to memory of 2744	2804	svchost.exe	33
PID 2804 wrote to memory of 2744	2804	svchost.exe	33
PID 2804 wrote to memory of 2744	2804	svchost.exe	33
PID 2804 wrote to memory of 2744	2804	svchost.exe	33
PID 2804 wrote to memory of 2744	2804	svchost.exe	33

C:\Users\Admin\AppData\Local\Temp\605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe
"C:\Users\Admin\AppData\Local\Temp\605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe"
1⤵
- 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:2100
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\605b777567b157148a11e24c4114a694cd70f1b4da15b38a4c3f90a677a42d69.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\nxlclsgqxtfdrjmc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2192
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\yzyulkrrlbxibxigybh"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2720
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\itenmdklhjpvddwkqmtpyl"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2100-6-0x0000000000BB0000-0x0000000000FB0000-memory.dmp

Filesize
4.0MB

Download
memory/2192-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-47-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-24-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-28-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-39-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-29-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/2720-30-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/2720-31-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/2720-40-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/2720-49-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/2744-42-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2744-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-38-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2744-35-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2744-41-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2744-37-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2804-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2804-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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