remcos | 2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 01:10

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General

Target

2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
Size

853KB
MD5

72fa44e3e13d946e188485a4115c67f4
SHA1

36571ccce2ae7f092c8bff4fe80b7b4cd37eee66
SHA256

2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9
SHA512

c1a97252b5b0048e861f2c2409b517ce86db911bae64606bbdfb482abb7d94877826265f7ef47c59c134c734054edbcb55b6e0a7317f43ddd35eabcc67717d7c
SSDEEP

24576:mBXu9HGaVHoB42WGiRjocxGJo3ToETGMCjm:mw9VHM4YSjoaw8oEqMC

Score

10^/10

remcos remotehost collection credential_access discovery rat stealer upx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

194.169.175.190:2404

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-LBZ2BK
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 9 IoCs

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

resource	yara_rule
behavioral2/memory/844-35-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1932-36-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3400-40-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3400-44-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/844-45-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1932-39-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3400-37-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/844-38-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1932-47-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3400-40-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3400-44-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3400-37-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1932-36-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1932-39-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1932-47-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3492-0-0x0000000000A20000-0x0000000000BF7000-memory.dmp	upx
behavioral2/memory/3492-20-0x0000000000A20000-0x0000000000BF7000-memory.dmp	upx

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	svchost.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3492-20-0x0000000000A20000-0x0000000000BF7000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3492 set thread context of 3720	3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe	87
PID 3720 set thread context of 1932	3720	svchost.exe	93
PID 3720 set thread context of 3400	3720	svchost.exe	94
PID 3720 set thread context of 844	3720	svchost.exe	95

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1932	svchost.exe
1932	svchost.exe
844	svchost.exe
844	svchost.exe
1932	svchost.exe
1932	svchost.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
3720	svchost.exe
3720	svchost.exe
3720	svchost.exe
3720	svchost.exe
3720	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	844	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3492 wrote to memory of 3720	3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe	87
PID 3492 wrote to memory of 3720	3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe	87
PID 3492 wrote to memory of 3720	3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe	87
PID 3492 wrote to memory of 3720	3492	2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe	87
PID 3720 wrote to memory of 2964	3720	svchost.exe	91
PID 3720 wrote to memory of 2964	3720	svchost.exe	91
PID 3720 wrote to memory of 2964	3720	svchost.exe	91
PID 3720 wrote to memory of 1192	3720	svchost.exe	92
PID 3720 wrote to memory of 1192	3720	svchost.exe	92
PID 3720 wrote to memory of 1192	3720	svchost.exe	92
PID 3720 wrote to memory of 1932	3720	svchost.exe	93
PID 3720 wrote to memory of 1932	3720	svchost.exe	93
PID 3720 wrote to memory of 1932	3720	svchost.exe	93
PID 3720 wrote to memory of 1932	3720	svchost.exe	93
PID 3720 wrote to memory of 3400	3720	svchost.exe	94
PID 3720 wrote to memory of 3400	3720	svchost.exe	94
PID 3720 wrote to memory of 3400	3720	svchost.exe	94
PID 3720 wrote to memory of 3400	3720	svchost.exe	94
PID 3720 wrote to memory of 844	3720	svchost.exe	95
PID 3720 wrote to memory of 844	3720	svchost.exe	95
PID 3720 wrote to memory of 844	3720	svchost.exe	95
PID 3720 wrote to memory of 844	3720	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe
"C:\Users\Admin\AppData\Local\Temp\2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.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:3492
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\wvfjqhblgkjqbylehqxbfzvtsvfkk"
    3⤵
    PID:2964
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\wvfjqhblgkjqbylehqxbfzvtsvfkk"
    3⤵
    PID:1192
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\wvfjqhblgkjqbylehqxbfzvtsvfkk"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1932
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\hpkcqzmmcsbvdeziybjdqmqcacplddzh"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:3400
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\rspur"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:844

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

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
4KB

MD5
15e28d82a9ee8a45c10bcf671fef0362

SHA1
2b126b086a1191cb8b4d444e87781358d51af3a4

SHA256
012fbb5f15d52a9560cf0e77fd36837ec2c56aff7a989d31c3d40d4f6df6cf9d

SHA512
3dd749523858a54e7e5ededba47d54715c9d5663dd0bd609363de7442436d1f0e924c5e4706e3ac413b79ddb6a18c796cc0ad166b4c87a3a7a6b009ba77fee82

Download Submit
memory/844-45-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/844-35-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/844-32-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/844-29-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/844-38-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1932-34-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1932-47-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1932-36-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1932-39-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1932-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3400-33-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3400-37-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3400-28-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3400-40-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3400-44-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3492-0-0x0000000000A20000-0x0000000000BF7000-memory.dmp

Filesize
1.8MB

Download
memory/3492-20-0x0000000000A20000-0x0000000000BF7000-memory.dmp

Filesize
1.8MB

Download
memory/3492-12-0x0000000003B00000-0x0000000003B04000-memory.dmp

Filesize
16KB

Download
memory/3720-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-53-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3720-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-49-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3720-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-52-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3720-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3720-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download