remcos | b6e31f72fbbe7445c891269043ec0ce2a5de5f68fa48f3d57e35d3614a22c2ea

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2023 16:56

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General

Target

TransportLabel9884037820PDF.exe
Size

1006KB
MD5

61ccd4ff158c603bf2c7b959509a3fba
SHA1

b7266740826165bb2bbd83cc57d68813979d596d
SHA256

b6e31f72fbbe7445c891269043ec0ce2a5de5f68fa48f3d57e35d3614a22c2ea
SHA512

8591a2857720245ba73da3c5ea7c0cb1c079194cf55dc7b6f99fc250e913108ac59866041d5956ba779dfaaf4c99b3c0eea7a4f964b72266c384ebc5fd57febc
SSDEEP

24576:3E+gg3NfP6O/y0dkHxMmegCUHVn+2Vj1qnsKzHF:3LJ3NfP6O/rkHymeCHVnR1us

Score

10^/10

remcos crypted rat

Malware Config

Extracted

Family

remcos

Botnet

Crypted

172.174.245.21:5400

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
true
install_flag
false
keylog_crypt
false
keylog_file
noon.dat
keylog_flag
false
keylog_path
%UserProfile%
mouse_option
false
mutex
roooera-7Y8ORO
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

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:

TransportLabel9884037820PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-433534792-1200107535-3148087551-1000\Control Panel\International\Geo\Nation	TransportLabel9884037820PDF.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

TransportLabel9884037820PDF.exe

description pid process target process

PID 3096 set thread context of 3652 3096 TransportLabel9884037820PDF.exe vbc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
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/Job
T1053

Processes:

schtasks.exe

pid process

4664 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exe

pid process

3244 powershell.exe
2652 powershell.exe
3244 powershell.exe
2652 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3244 powershell.exe
Token: SeDebugPrivilege 2652 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

3652 vbc.exe

description	pid	process	target process
PID 3096 set thread context of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe

pid	process
4664	schtasks.exe

pid	process
3244	powershell.exe
2652	powershell.exe
3244	powershell.exe
2652	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeDebugPrivilege	2652	powershell.exe

pid	process
3652	vbc.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

TransportLabel9884037820PDF.exe

description	pid	process	target process
PID 3096 wrote to memory of 3244	3096	TransportLabel9884037820PDF.exe	powershell.exe
PID 3096 wrote to memory of 3244	3096	TransportLabel9884037820PDF.exe	powershell.exe
PID 3096 wrote to memory of 3244	3096	TransportLabel9884037820PDF.exe	powershell.exe
PID 3096 wrote to memory of 2652	3096	TransportLabel9884037820PDF.exe	powershell.exe
PID 3096 wrote to memory of 2652	3096	TransportLabel9884037820PDF.exe	powershell.exe
PID 3096 wrote to memory of 2652	3096	TransportLabel9884037820PDF.exe	powershell.exe
PID 3096 wrote to memory of 4664	3096	TransportLabel9884037820PDF.exe	schtasks.exe
PID 3096 wrote to memory of 4664	3096	TransportLabel9884037820PDF.exe	schtasks.exe
PID 3096 wrote to memory of 4664	3096	TransportLabel9884037820PDF.exe	schtasks.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe
PID 3096 wrote to memory of 3652	3096	TransportLabel9884037820PDF.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\TransportLabel9884037820PDF.exe
"C:\Users\Admin\AppData\Local\Temp\TransportLabel9884037820PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3096

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:3652

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VWrtNh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8879.tmp"
2⤵
- Creates scheduled task(s)
PID:4664

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VWrtNh.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2652

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\TransportLabel9884037820PDF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
18KB

MD5
7d0c7536b9c6a0d67ecdd9962f77e6df

SHA1
2bcc9d7581b3889e127e9cd15bbd71ade376916c

SHA256
d4108dd9372df1ef6cf45f660a538df97feb5ac9098c4aeaa402bddfa713bbbb

SHA512
2e472afeb3c56e3e028ebdfebcfc4ad446128f8c56d2ac818465ed314209b69f2e0938615a4e20517d53cad48023d20f0d9906d35ccd5b64cedf69c0be579855

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_artugxml.ejj.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8879.tmp
Filesize
1KB

MD5
d54eecd57c1b49754ee66f35bbf994f5

SHA1
c101004071c9fa1a5a1d5e77c805895f24317e43

SHA256
7c3c257fef969a5487bcb974e61ab43b81bf4ccecd1ce2931814d36fb3ef2e01

SHA512
753c0105dea77a7ceda3940b67cdbd6a0b707c9da2265d1f771c8a08c204dffd93e3ef4c9a5846f86f6cd378cdb455d831554016bb07f598c4926537b50407e7

Download Submit
memory/2652-95-0x0000000007060000-0x0000000007068000-memory.dmp

Filesize
32KB

Download
memory/2652-22-0x00000000044C0000-0x00000000044D0000-memory.dmp

Filesize
64KB

Download
memory/2652-93-0x0000000006F80000-0x0000000006F94000-memory.dmp

Filesize
80KB

Download
memory/2652-62-0x000000007EF10000-0x000000007EF20000-memory.dmp

Filesize
64KB

Download
memory/2652-63-0x0000000005FF0000-0x0000000006022000-memory.dmp

Filesize
200KB

Download
memory/2652-70-0x0000000072F70000-0x0000000072FBC000-memory.dmp

Filesize
304KB

Download
memory/2652-91-0x0000000006F40000-0x0000000006F51000-memory.dmp

Filesize
68KB

Download
memory/2652-88-0x0000000006D40000-0x0000000006D5A000-memory.dmp

Filesize
104KB

Download
memory/2652-86-0x00000000069F0000-0x0000000006A93000-memory.dmp

Filesize
652KB

Download
memory/2652-59-0x0000000005A20000-0x0000000005A3E000-memory.dmp

Filesize
120KB

Download
memory/2652-23-0x00000000044C0000-0x00000000044D0000-memory.dmp

Filesize
64KB

Download
memory/2652-94-0x0000000007080000-0x000000000709A000-memory.dmp

Filesize
104KB

Download
memory/2652-29-0x0000000005390000-0x00000000053F6000-memory.dmp

Filesize
408KB

Download
memory/2652-25-0x0000000004940000-0x0000000004962000-memory.dmp

Filesize
136KB

Download
memory/2652-26-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/2652-28-0x0000000005170000-0x00000000051D6000-memory.dmp

Filesize
408KB

Download
memory/2652-102-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/2652-60-0x0000000005AB0000-0x0000000005AFC000-memory.dmp

Filesize
304KB

Download
memory/3096-20-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3096-9-0x000000000C500000-0x000000000C50A000-memory.dmp

Filesize
40KB

Download
memory/3096-0-0x00000000009B0000-0x0000000000AB2000-memory.dmp

Filesize
1.0MB

Download
memory/3096-55-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3096-4-0x0000000005650000-0x00000000059A4000-memory.dmp

Filesize
3.3MB

Download
memory/3096-3-0x00000000054E0000-0x0000000005572000-memory.dmp

Filesize
584KB

Download
memory/3096-5-0x0000000005640000-0x0000000005650000-memory.dmp

Filesize
64KB

Download
memory/3096-2-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/3096-6-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/3096-7-0x0000000006240000-0x000000000625A000-memory.dmp

Filesize
104KB

Download
memory/3096-27-0x0000000005640000-0x0000000005650000-memory.dmp

Filesize
64KB

Download
memory/3096-8-0x00000000094F0000-0x00000000094F8000-memory.dmp

Filesize
32KB

Download
memory/3096-10-0x000000000C990000-0x000000000CA4A000-memory.dmp

Filesize
744KB

Download
memory/3096-1-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3096-11-0x0000000010010000-0x00000000100AC000-memory.dmp

Filesize
624KB

Download
memory/3244-92-0x0000000007A50000-0x0000000007A5E000-memory.dmp

Filesize
56KB

Download
memory/3244-87-0x0000000007E70000-0x00000000084EA000-memory.dmp

Filesize
6.5MB

Download
memory/3244-75-0x0000000007470000-0x000000000748E000-memory.dmp

Filesize
120KB

Download
memory/3244-16-0x0000000002BD0000-0x0000000002C06000-memory.dmp

Filesize
216KB

Download
memory/3244-17-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3244-19-0x0000000005910000-0x0000000005F38000-memory.dmp

Filesize
6.2MB

Download
memory/3244-89-0x00000000078A0000-0x00000000078AA000-memory.dmp

Filesize
40KB

Download
memory/3244-61-0x000000007FBF0000-0x000000007FC00000-memory.dmp

Filesize
64KB

Download
memory/3244-90-0x0000000007AA0000-0x0000000007B36000-memory.dmp

Filesize
600KB

Download
memory/3244-101-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3244-21-0x00000000052D0000-0x00000000052E0000-memory.dmp

Filesize
64KB

Download
memory/3244-18-0x00000000052D0000-0x00000000052E0000-memory.dmp

Filesize
64KB

Download
memory/3244-64-0x0000000072F70000-0x0000000072FBC000-memory.dmp

Filesize
304KB

Download
memory/3244-76-0x00000000052D0000-0x00000000052E0000-memory.dmp

Filesize
64KB

Download
memory/3652-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3652-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download