remcos | c1f36f8ad9a6360ed406ff3e84dd9b9a765e6edea3d9beb7e5c303230001fd13

General

Target

order specification.pif.exe
Size

862KB
MD5

32fdfac1be3eeb287976d70b621ba718
SHA1

2dd9ced6021c1f1e8f772ead665e70ee4250c238
SHA256

c1f36f8ad9a6360ed406ff3e84dd9b9a765e6edea3d9beb7e5c303230001fd13
SHA512

a77441898821e5f84c860c05ea62357851330693d1566ff60ea47676efef0846e99192d1ba51d8a5569b2b93acf697eccb0ecf047ed17ab58a9453fd5af32cba
SSDEEP

24576:PYZIth8N9PnPo2SxApB3x8uYU66U25BL:Pvth8N5Po2rpH8uYUOA

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.drechftankholding.com: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
dfgh
mouse_option
false
mutex
Rmc-8J6PG9
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2776	powershell.exe
2936	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1820 set thread context of 2800	1820	order specification.pif.exe	37

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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	order specification.pif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1820	order specification.pif.exe
2776	powershell.exe
2936	powershell.exe
1820	order specification.pif.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1820	order specification.pif.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	2936	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2800	vbc.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2776	1820	order specification.pif.exe	31
PID 1820 wrote to memory of 2776	1820	order specification.pif.exe	31
PID 1820 wrote to memory of 2776	1820	order specification.pif.exe	31
PID 1820 wrote to memory of 2776	1820	order specification.pif.exe	31
PID 1820 wrote to memory of 2936	1820	order specification.pif.exe	33
PID 1820 wrote to memory of 2936	1820	order specification.pif.exe	33
PID 1820 wrote to memory of 2936	1820	order specification.pif.exe	33
PID 1820 wrote to memory of 2936	1820	order specification.pif.exe	33
PID 1820 wrote to memory of 2780	1820	order specification.pif.exe	34
PID 1820 wrote to memory of 2780	1820	order specification.pif.exe	34
PID 1820 wrote to memory of 2780	1820	order specification.pif.exe	34
PID 1820 wrote to memory of 2780	1820	order specification.pif.exe	34
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37
PID 1820 wrote to memory of 2800	1820	order specification.pif.exe	37

C:\Users\Admin\AppData\Local\Temp\order specification.pif.exe
"C:\Users\Admin\AppData\Local\Temp\order specification.pif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\order specification.pif.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sOjQJdX.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2936
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sOjQJdX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE437.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

Scripting

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\dfgh\logs.dat

Filesize
144B

MD5
05688c5a0af76d23210837d57f35cbf4

SHA1
c8b4e6c2fb47b133d55c1c20468a6b9dacd72ea6

SHA256
e55d1630c37fa75eb1e5464337f3d7e39c93eb0fa6446f856d6f57fccfd99a70

SHA512
a0e1846fbf9b39c6c526eff9e084f50ff7d9169b1c7e75debf23ca4adf4dc784370fd8294741e29d4c662191a38fdd193ba5c5fa7cea50c1b0043346488c59eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE437.tmp

Filesize
1KB

MD5
26ce64fd5d54176ee668fa7a2bae39a4

SHA1
7726bf2ac785c922c3f636cb10fc28b0d75fd6eb

SHA256
0888875867d7738fc5386036f39f28d1611f4257d7607a442d8f3c067416c1a6

SHA512
e3be4774d63820732e84e7eaa7995fbdb296bca9efc28f05017f942d0874ce9e3c83c8be53218bbf4232384e56b37295e3e580bdc71b9253eb0af4e0da5f9ef1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BDPAL5VQ3L7THGV32CZG.temp

Filesize
7KB

MD5
c0fa300a5a530fe005d6114b7f430d7c

SHA1
f2affac4f0d9f3baab3eb81d5e872031c34891e9

SHA256
82427bbc144d0885354ef22bb489df4bddffed2d4bacd7a350ec837916939a98

SHA512
8ea49506294650a7df8288f2a18514bad873ec0087b2c5af77428f86fc534ffce5ab71472c713ab266753e0cd9665eb6ba3e63281edee7b60d9df683b46b7078

Download Submit
memory/1820-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1820-1-0x0000000000370000-0x000000000044E000-memory.dmp

Filesize
888KB

Download
memory/1820-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-3-0x00000000006A0000-0x00000000006AE000-memory.dmp

Filesize
56KB

Download
memory/1820-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1820-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-6-0x00000000052B0000-0x0000000005370000-memory.dmp

Filesize
768KB

Download
memory/1820-42-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2800-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-35-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2800-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads