remcos | b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f

Analysis

max time kernel
148s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-09-2024 00:41

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General

Target

6138a05e066e20c8e39c760bec68e113.exe
Size

964KB
MD5

6138a05e066e20c8e39c760bec68e113
SHA1

04644b6a5ea07a58824ff156b240ca9481806469
SHA256

b4463bc49e5f7fdfe610f17163ad8b399dda74e6843c4ea7fccf379c95e06e4f
SHA512

811381b33c3be3ee817a127c42e3c886802331d7453230658244872c97cddc36aa4c0b7d05e30c9280bfe1f800fedb481575cd0ab502386953af4505a5dd7aaf
SSDEEP

24576:LI++Z/jfG+Nv4GhFASI4tKX2Fjpm87bb:LI++ZLfG+SGhF/tImT

Score

10^/10

remcos remotehost collection discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

103.186.116.220:6565

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-9XV80Z
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

Detected Nirsoft tools 7 IoCs

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

resource	yara_rule
behavioral1/memory/2604-52-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2696-54-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2748-53-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2696-50-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2748-47-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2748-59-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2696-63-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2696-54-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2696-50-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2696-63-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2748-53-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2748-47-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2748-59-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	MSBuild.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1272 set thread context of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 2184 set thread context of 2748	2184	MSBuild.exe	33
PID 2184 set thread context of 2696	2184	MSBuild.exe	34
PID 2184 set thread context of 2604	2184	MSBuild.exe	35

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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6138a05e066e20c8e39c760bec68e113.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1272	6138a05e066e20c8e39c760bec68e113.exe
1272	6138a05e066e20c8e39c760bec68e113.exe
2748	MSBuild.exe
2748	MSBuild.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2184	MSBuild.exe
2184	MSBuild.exe
2184	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	6138a05e066e20c8e39c760bec68e113.exe
Token: SeDebugPrivilege	2604	MSBuild.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 2428	1272	6138a05e066e20c8e39c760bec68e113.exe	31
PID 1272 wrote to memory of 2428	1272	6138a05e066e20c8e39c760bec68e113.exe	31
PID 1272 wrote to memory of 2428	1272	6138a05e066e20c8e39c760bec68e113.exe	31
PID 1272 wrote to memory of 2428	1272	6138a05e066e20c8e39c760bec68e113.exe	31
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 1272 wrote to memory of 2184	1272	6138a05e066e20c8e39c760bec68e113.exe	32
PID 2184 wrote to memory of 2748	2184	MSBuild.exe	33
PID 2184 wrote to memory of 2748	2184	MSBuild.exe	33
PID 2184 wrote to memory of 2748	2184	MSBuild.exe	33
PID 2184 wrote to memory of 2748	2184	MSBuild.exe	33
PID 2184 wrote to memory of 2748	2184	MSBuild.exe	33
PID 2184 wrote to memory of 2696	2184	MSBuild.exe	34
PID 2184 wrote to memory of 2696	2184	MSBuild.exe	34
PID 2184 wrote to memory of 2696	2184	MSBuild.exe	34
PID 2184 wrote to memory of 2696	2184	MSBuild.exe	34
PID 2184 wrote to memory of 2696	2184	MSBuild.exe	34
PID 2184 wrote to memory of 2604	2184	MSBuild.exe	35
PID 2184 wrote to memory of 2604	2184	MSBuild.exe	35
PID 2184 wrote to memory of 2604	2184	MSBuild.exe	35
PID 2184 wrote to memory of 2604	2184	MSBuild.exe	35
PID 2184 wrote to memory of 2604	2184	MSBuild.exe	35

C:\Users\Admin\AppData\Local\Temp\6138a05e066e20c8e39c760bec68e113.exe
"C:\Users\Admin\AppData\Local\Temp\6138a05e066e20c8e39c760bec68e113.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1272
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2428
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\ciwbfpg"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2748
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\mccughryhav"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2696
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe /stext "C:\Users\Admin\AppData\Local\Temp\pepehacrvjnhcg"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/1272-30-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1272-1-0x00000000003F0000-0x00000000004E6000-memory.dmp

Filesize
984KB

Download
memory/1272-2-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1272-3-0x00000000005A0000-0x00000000005B0000-memory.dmp

Filesize
64KB

Download
memory/1272-4-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/1272-5-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1272-6-0x0000000005880000-0x0000000005940000-memory.dmp

Filesize
768KB

Download
memory/1272-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/2184-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-68-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2184-64-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2184-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-67-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2184-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2184-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2604-49-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2604-52-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2604-51-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2696-50-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2696-63-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2696-45-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2696-46-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2696-42-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-54-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2748-59-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2748-41-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2748-39-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2748-47-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2748-53-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download