remcos | 58d167ac0455b7d024658ef55ce982f54ddfae649fde25813b4819928c6bf9ba

General

Target

SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
Size

1.3MB
MD5

d751076beaf8337922448d52597b1546
SHA1

44b999de91bf735a3721ff0b7e61c4d4d284cca4
SHA256

58d167ac0455b7d024658ef55ce982f54ddfae649fde25813b4819928c6bf9ba
SHA512

e510bdd0ffb2ffd6fe41f41307bde4182b27f14977f37bde649309bf558ba29082123ec27105b938f0e945c255126cb18a498071e2c650dbe97682cb94ed8c93

Score

10^/10

remcos 1ehefeb rat

Malware Config

Extracted

Family

remcos

Botnet

1EHEFEB

C2

microsoft-update-tool.duckdns.org:49155

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%SystemDrive%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
UpdateFDFRVGTG-DWNCZC
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
take_screenshot_title
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.13450.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{4D760648-EAFB-44D3-BC11-A877F95823BF}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{A3744F31-6D6F-45C8-9271-55ED83FD43F1}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.13450.exe

description	pid	process	target process
PID 3864 set thread context of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

484 schtasks.exe

pid	process
484	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.13450.exepowershell.exe

pid process

3864 SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
3864 SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
4828 powershell.exe
4828 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.13450.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3864 SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
Token: SeDebugPrivilege 4828 powershell.exe

pid	process
3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
4828	powershell.exe
4828	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
Token: SeDebugPrivilege	4828	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.13450.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.13450.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3864

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\loWjuOJJGsVZ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4828

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\loWjuOJJGsVZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp538E.tmp"
2⤵
- Creates scheduled task(s)
PID:484

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.13450.exe"
2⤵
PID:3140

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1812

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp538E.tmp
Filesize
1KB

MD5
3b55a68c8e4d884d0dc2eda36b179c64

SHA1
3b1ccc82523c10dfbb51fbfd982c60c803dd994f

SHA256
5831397bb3d7da65ab466d9eb8fbe9a89be9d2146cc386d913c40a0150fb4872

SHA512
fcf12eff4032785f87296ecaf029916b85ac5bb9de8b437bce143345e3a2e2a41e1446b7560ce50c4d1d3bb93c92cc6af7e194df807c1d59a3a17a79c4227e88

Download Submit
memory/484-137-0x0000000000000000-mapping.dmp

Download
memory/3140-144-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3140-159-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3140-147-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3140-141-0x0000000000000000-mapping.dmp

Download
memory/3140-142-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3140-143-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/3864-134-0x0000000008180000-0x000000000821C000-memory.dmp

Filesize
624KB

Download
memory/3864-135-0x0000000008490000-0x00000000084F6000-memory.dmp

Filesize
408KB

Download
memory/3864-130-0x0000000000D50000-0x0000000000E98000-memory.dmp

Filesize
1.3MB

Download
memory/3864-132-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/3864-131-0x0000000005D50000-0x00000000062F4000-memory.dmp

Filesize
5.6MB

Download
memory/3864-133-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/4828-157-0x0000000007060000-0x000000000707A000-memory.dmp

Filesize
104KB

Download
memory/4828-151-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

Filesize
120KB

Download
memory/4828-150-0x00000000705A0000-0x00000000705EC000-memory.dmp

Filesize
304KB

Download
memory/4828-138-0x00000000020F0000-0x0000000002126000-memory.dmp

Filesize
216KB

Download
memory/4828-148-0x0000000005A10000-0x0000000005A2E000-memory.dmp

Filesize
120KB

Download
memory/4828-149-0x00000000069C0000-0x00000000069F2000-memory.dmp

Filesize
200KB

Download
memory/4828-146-0x0000000005340000-0x00000000053A6000-memory.dmp

Filesize
408KB

Download
memory/4828-140-0x0000000004C40000-0x0000000005268000-memory.dmp

Filesize
6.2MB

Download
memory/4828-152-0x0000000007430000-0x0000000007AAA000-memory.dmp

Filesize
6.5MB

Download
memory/4828-153-0x0000000006B10000-0x0000000006B2A000-memory.dmp

Filesize
104KB

Download
memory/4828-154-0x0000000006B80000-0x0000000006B8A000-memory.dmp

Filesize
40KB

Download
memory/4828-155-0x0000000006FA0000-0x0000000007036000-memory.dmp

Filesize
600KB

Download
memory/4828-156-0x0000000006F50000-0x0000000006F5E000-memory.dmp

Filesize
56KB

Download
memory/4828-145-0x00000000052A0000-0x00000000052C2000-memory.dmp

Filesize
136KB

Download
memory/4828-158-0x0000000007040000-0x0000000007048000-memory.dmp

Filesize
32KB

Download
memory/4828-136-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 3864 wrote to memory of 4828	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	powershell.exe
PID 3864 wrote to memory of 4828	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	powershell.exe
PID 3864 wrote to memory of 4828	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	powershell.exe
PID 3864 wrote to memory of 484	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	schtasks.exe
PID 3864 wrote to memory of 484	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	schtasks.exe
PID 3864 wrote to memory of 484	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	schtasks.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe
PID 3864 wrote to memory of 3140	3864	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe	SecuriteInfo.com.W32.AIDetectNet.01.13450.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads