remcos | a19b171658151c4a4af32dd17474a8184cc37a0d99138ae540177e15cebd9093

Analysis

max time kernel
147s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 14:47

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General

Target

INTECH RFQ EN241813.exe
Size

682KB
MD5

f9848165fbabe0f8b34fb5d830b2fecc
SHA1

2c53840921153910eb84270e4e12d07e82b1451d
SHA256

a19b171658151c4a4af32dd17474a8184cc37a0d99138ae540177e15cebd9093
SHA512

6dac265560ea2e03036a7737862893695ba512d2e9084325db0f1a56ba8022bd5ce4fd98fea4c515e9536e4d41a8f8845abfee128856640e374ec5055af4837c
SSDEEP

12288:7++g+++++++++++++++++G++++++++++++++++++++K++++Ubv+++++++++++++2:7++g+++++++++++++++++G+++++++++o

Score

10^/10

remcos remotehost collection discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

69.61.31.229:2404

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-EPE0FD
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 3 IoCs

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

Processes:

resource	yara_rule
behavioral2/memory/4420-84-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2092-78-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4508-77-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/2092-78-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/4508-77-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

msiexec.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	msiexec.exe

Blocklisted process makes network request 4 IoCs

Processes:

msiexec.exe

flow	pid	Process
35	1496	msiexec.exe
36	1496	msiexec.exe
38	1496	msiexec.exe
40	1496	msiexec.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

msiexec.exe

pid	Process
1496	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

powershell.exemsiexec.exe

pid	Process
3064	powershell.exe
1496	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

msiexec.exe

description	pid	Process	procid_target
PID 1496 set thread context of 4508	1496	msiexec.exe	102
PID 1496 set thread context of 2092	1496	msiexec.exe	103
PID 1496 set thread context of 4420	1496	msiexec.exe	104

Drops file in Windows directory 1 IoCs

Processes:

INTECH RFQ EN241813.exe

description	ioc	Process
File opened for modification	C:\Windows\brewsterite.mes	INTECH RFQ EN241813.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
3064	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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

Processes:

powershell.exemsiexec.exemsiexec.exemsiexec.exemsiexec.exeINTECH RFQ EN241813.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INTECH RFQ EN241813.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

powershell.exemsiexec.exemsiexec.exe

pid	Process
3064	powershell.exe
3064	powershell.exe
3064	powershell.exe
3064	powershell.exe
3064	powershell.exe
3064	powershell.exe
3064	powershell.exe
4508	msiexec.exe
4508	msiexec.exe
4420	msiexec.exe
4420	msiexec.exe
4508	msiexec.exe
4508	msiexec.exe

Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

powershell.exemsiexec.exe

pid	Process
3064	powershell.exe
1496	msiexec.exe
1496	msiexec.exe
1496	msiexec.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

powershell.exemsiexec.exe

description	pid	Process
Token: SeDebugPrivilege	3064	powershell.exe
Token: SeIncreaseQuotaPrivilege	3064	powershell.exe
Token: SeSecurityPrivilege	3064	powershell.exe
Token: SeTakeOwnershipPrivilege	3064	powershell.exe
Token: SeLoadDriverPrivilege	3064	powershell.exe
Token: SeSystemProfilePrivilege	3064	powershell.exe
Token: SeSystemtimePrivilege	3064	powershell.exe
Token: SeProfSingleProcessPrivilege	3064	powershell.exe
Token: SeIncBasePriorityPrivilege	3064	powershell.exe
Token: SeCreatePagefilePrivilege	3064	powershell.exe
Token: SeBackupPrivilege	3064	powershell.exe
Token: SeRestorePrivilege	3064	powershell.exe
Token: SeShutdownPrivilege	3064	powershell.exe
Token: SeDebugPrivilege	3064	powershell.exe
Token: SeSystemEnvironmentPrivilege	3064	powershell.exe
Token: SeRemoteShutdownPrivilege	3064	powershell.exe
Token: SeUndockPrivilege	3064	powershell.exe
Token: SeManageVolumePrivilege	3064	powershell.exe
Token: 33	3064	powershell.exe
Token: 34	3064	powershell.exe
Token: 35	3064	powershell.exe
Token: 36	3064	powershell.exe
Token: SeDebugPrivilege	4420	msiexec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msiexec.exe

pid	Process
1496	msiexec.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

INTECH RFQ EN241813.exepowershell.exemsiexec.exe

description	pid	Process	procid_target
PID 4560 wrote to memory of 3064	4560	INTECH RFQ EN241813.exe	83
PID 4560 wrote to memory of 3064	4560	INTECH RFQ EN241813.exe	83
PID 4560 wrote to memory of 3064	4560	INTECH RFQ EN241813.exe	83
PID 3064 wrote to memory of 1496	3064	powershell.exe	99
PID 3064 wrote to memory of 1496	3064	powershell.exe	99
PID 3064 wrote to memory of 1496	3064	powershell.exe	99
PID 3064 wrote to memory of 1496	3064	powershell.exe	99
PID 1496 wrote to memory of 4508	1496	msiexec.exe	102
PID 1496 wrote to memory of 4508	1496	msiexec.exe	102
PID 1496 wrote to memory of 4508	1496	msiexec.exe	102
PID 1496 wrote to memory of 4508	1496	msiexec.exe	102
PID 1496 wrote to memory of 2092	1496	msiexec.exe	103
PID 1496 wrote to memory of 2092	1496	msiexec.exe	103
PID 1496 wrote to memory of 2092	1496	msiexec.exe	103
PID 1496 wrote to memory of 2092	1496	msiexec.exe	103
PID 1496 wrote to memory of 4420	1496	msiexec.exe	104
PID 1496 wrote to memory of 4420	1496	msiexec.exe	104
PID 1496 wrote to memory of 4420	1496	msiexec.exe	104
PID 1496 wrote to memory of 4420	1496	msiexec.exe	104

C:\Users\Admin\AppData\Local\Temp\INTECH RFQ EN241813.exe
"C:\Users\Admin\AppData\Local\Temp\INTECH RFQ EN241813.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle minimized "$Sontag=gc -Raw 'C:\Users\Admin\AppData\Roaming\Mirror\radials.Glu';$Dividivis=$Sontag.SubString(54192,3);.$Dividivis($Sontag)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\msiexec.exe
    "C:\Windows\SysWOW64\msiexec.exe"
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1496
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\vctq"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4508
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\fwgjamv"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:2092
  - - C:\Windows\SysWOW64\msiexec.exe
      C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\qqmtbegylmn"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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:\ProgramData\remcos\logs.dat

Filesize
102B

MD5
3a407585893f59d6b067ee440b32e69d

SHA1
78e38739779fb8c7b9bdde56f6e02849ba9655ef

SHA256
67ffa9d98266df4622f52d08c00132b72815df3979b070b3a51f152cb9446287

SHA512
e3357a382766dd8e6c128fe42976591e028afcf6912e4f601fa7a6fea1727fd7183faa49e39315e82b35df8a559572e92ae5805bdb16c82c2f6ec7ec700d4b04

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bmvm44wi.kqo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
4KB

MD5
79f35c7500a5cc739c1974804710441f

SHA1
24fdf1fa45049fc1a83925c45357bc3058bad060

SHA256
897101ed9da25ab0f10e8ad1aeb8dabc3282ccfdb6d3171dbac758117b8731f4

SHA512
03281e8abecff4e7d1f563596a4fd2513e016b7fbf011a455141460f9448d00b4a4666d2036cb448a8ac9a6feebeb51b366289ffa2ee5524a062fe8869aec61e

Download Submit
C:\Users\Admin\AppData\Roaming\Mirror\Mnage.Uro

Filesize
336KB

MD5
876aa040a7c4760384b7b4cb49ea1fc1

SHA1
e9d2855670fcc3ca4244687da0f8b74087a61325

SHA256
6c30940c90bf68d8461f05835248c1d10e002c59d448458e01c4b18ae3afe70f

SHA512
4a52f6e778f06888a9955d50fc6cbfae1200b0fc8b6ed867ec6d6db7b965189b05ee6aa8b25de78afabde0a4db15c5f113ac366c088c5a5c0d23164c0504dee1

Download Submit
C:\Users\Admin\AppData\Roaming\Mirror\radials.Glu

Filesize
52KB

MD5
48bfb2d69f3a797169c8b44b71e7bb6a

SHA1
2a3e1bb359707f2ad6325b2f8520e95945ebc6fe

SHA256
95da5b6aa5c574eda69ebc3c020ad6163faa508e9bb37dd42f9b4290adc61ef0

SHA512
688344cc79016b6678acae2a4302b945f81cf5f9abc81b9c783b2d94381d11d4c3b8d2d066452be8ea21c8312cdd3ef59d4a41d0f95496a072a071c8dadbaf1d

Download Submit
memory/1496-117-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-90-0x00000000223F0000-0x0000000022409000-memory.dmp

Filesize
100KB

Download
memory/1496-99-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-114-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-105-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-93-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-102-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-91-0x00000000223F0000-0x0000000022409000-memory.dmp

Filesize
100KB

Download
memory/1496-96-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-87-0x00000000223F0000-0x0000000022409000-memory.dmp

Filesize
100KB

Download
memory/1496-120-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-65-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/1496-66-0x0000000000D00000-0x0000000001F54000-memory.dmp

Filesize
18.3MB

Download
memory/2092-72-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2092-78-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2092-76-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3064-54-0x00000000079C0000-0x00000000079E4000-memory.dmp

Filesize
144KB

Download
memory/3064-26-0x00000000066E0000-0x0000000006702000-memory.dmp

Filesize
136KB

Download
memory/3064-45-0x0000000007740000-0x000000000774A000-memory.dmp

Filesize
40KB

Download
memory/3064-46-0x00000000078A0000-0x00000000078B1000-memory.dmp

Filesize
68KB

Download
memory/3064-47-0x00000000078F0000-0x00000000078FE000-memory.dmp

Filesize
56KB

Download
memory/3064-48-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

Filesize
4KB

Download
memory/3064-49-0x0000000007900000-0x0000000007914000-memory.dmp

Filesize
80KB

Download
memory/3064-50-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-51-0x0000000007940000-0x000000000795A000-memory.dmp

Filesize
104KB

Download
memory/3064-52-0x0000000007930000-0x0000000007938000-memory.dmp

Filesize
32KB

Download
memory/3064-53-0x0000000007990000-0x00000000079BA000-memory.dmp

Filesize
168KB

Download
memory/3064-5-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

Filesize
4KB

Download
memory/3064-55-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-56-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-57-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-43-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-59-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-60-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-61-0x0000000008CB0000-0x000000000D661000-memory.dmp

Filesize
73.7MB

Download
memory/3064-63-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-64-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-42-0x00000000075B0000-0x00000000075CE000-memory.dmp

Filesize
120KB

Download
memory/3064-32-0x00000000748B0000-0x00000000748FC000-memory.dmp

Filesize
304KB

Download
memory/3064-6-0x0000000002BC0000-0x0000000002BF6000-memory.dmp

Filesize
216KB

Download
memory/3064-30-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-7-0x0000000073FC0000-0x0000000074770000-memory.dmp

Filesize
7.7MB

Download
memory/3064-8-0x00000000053F0000-0x0000000005A18000-memory.dmp

Filesize
6.2MB

Download
memory/3064-9-0x00000000052E0000-0x0000000005302000-memory.dmp

Filesize
136KB

Download
memory/3064-31-0x00000000075D0000-0x0000000007602000-memory.dmp

Filesize
200KB

Download
memory/3064-15-0x0000000005380000-0x00000000053E6000-memory.dmp

Filesize
408KB

Download
memory/3064-29-0x0000000008630000-0x0000000008CAA000-memory.dmp

Filesize
6.5MB

Download
memory/3064-16-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/3064-21-0x0000000005D10000-0x0000000006064000-memory.dmp

Filesize
3.3MB

Download
memory/3064-27-0x0000000007A00000-0x0000000007FA4000-memory.dmp

Filesize
5.6MB

Download
memory/3064-44-0x0000000007620000-0x00000000076C3000-memory.dmp

Filesize
652KB

Download
memory/3064-25-0x0000000006690000-0x00000000066AA000-memory.dmp

Filesize
104KB

Download
memory/3064-24-0x0000000007340000-0x00000000073D6000-memory.dmp

Filesize
600KB

Download
memory/3064-23-0x00000000061D0000-0x000000000621C000-memory.dmp

Filesize
304KB

Download
memory/3064-22-0x00000000061B0000-0x00000000061CE000-memory.dmp

Filesize
120KB

Download
memory/4420-79-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4420-83-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4420-84-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4508-74-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4508-75-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4508-77-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4508-71-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download