remcos | b6e31f72fbbe7445c891269043ec0ce2a5de5f68fa48f3d57e35d3614a22c2ea

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231127-en
resource tags

arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2023 07:18

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General

Target

TransportLabel_9884037820_PDF.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:

TransportLabel_9884037820_PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2013768333-4045878716-2922883000-1000\Control Panel\International\Geo\Nation	TransportLabel_9884037820_PDF.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

TransportLabel_9884037820_PDF.exe

description pid process target process

PID 2152 set thread context of 2580 2152 TransportLabel_9884037820_PDF.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

4584 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

3800 powershell.exe
3800 powershell.exe
4360 powershell.exe
4360 powershell.exe
3800 powershell.exe
4360 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3800 powershell.exe
Token: SeDebugPrivilege 4360 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

2580 vbc.exe

description	pid	process	target process
PID 2152 set thread context of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe

pid	process
4584	schtasks.exe

pid	process
3800	powershell.exe
3800	powershell.exe
4360	powershell.exe
4360	powershell.exe
3800	powershell.exe
4360	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	4360	powershell.exe

pid	process
2580	vbc.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

TransportLabel_9884037820_PDF.exe

description	pid	process	target process
PID 2152 wrote to memory of 4360	2152	TransportLabel_9884037820_PDF.exe	powershell.exe
PID 2152 wrote to memory of 4360	2152	TransportLabel_9884037820_PDF.exe	powershell.exe
PID 2152 wrote to memory of 4360	2152	TransportLabel_9884037820_PDF.exe	powershell.exe
PID 2152 wrote to memory of 3800	2152	TransportLabel_9884037820_PDF.exe	powershell.exe
PID 2152 wrote to memory of 3800	2152	TransportLabel_9884037820_PDF.exe	powershell.exe
PID 2152 wrote to memory of 3800	2152	TransportLabel_9884037820_PDF.exe	powershell.exe
PID 2152 wrote to memory of 4584	2152	TransportLabel_9884037820_PDF.exe	schtasks.exe
PID 2152 wrote to memory of 4584	2152	TransportLabel_9884037820_PDF.exe	schtasks.exe
PID 2152 wrote to memory of 4584	2152	TransportLabel_9884037820_PDF.exe	schtasks.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe
PID 2152 wrote to memory of 2580	2152	TransportLabel_9884037820_PDF.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\TransportLabel_9884037820_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\TransportLabel_9884037820_PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2152

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\TransportLabel_9884037820_PDF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4360

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:3800

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VWrtNh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBFA6.tmp"
2⤵
- Creates scheduled task(s)
PID:4584

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:2580

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scripting

T1064

Scheduled Task/Job

T1053

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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
1acb5cfb5fd9a5d6db7f5e2ad95b0bf1

SHA1
0515dc7121b10038e42eb7e9b92a3da4f9a4dad6

SHA256
ca5ee5c151041443ba936143cf15e313e8f7727e65eaf74f56289136d521e0cf

SHA512
b84c32135614ed26669e6caf4d194ce4a8dd357de6aa07aa5ed797f7433b960f0582d430c08490a108bb6674de7d5c1b223077475b7557af5bc293e64397c746

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4q1viqnw.hug.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBFA6.tmp
Filesize
1KB

MD5
675f2f59193e233c56006dfa7607f79b

SHA1
401377cbf28b8565592446777d81005134b1bbb0

SHA256
9488dc61926940b95115cbcfc1fd5ab507806004b73f92b2e435de2d155ba11e

SHA512
cff090b930bc594a37e3acb259f294b424422187a9bcf901898d19afe060c1b3e6743d31bde17d606db803638a031869a6550bacfced3f7e062e222bdd360d01

Download Submit
memory/2152-4-0x0000000004F40000-0x0000000005294000-memory.dmp

Filesize
3.3MB

Download
memory/2152-11-0x000000000F6F0000-0x000000000F78C000-memory.dmp

Filesize
624KB

Download
memory/2152-6-0x0000000005340000-0x000000000534A000-memory.dmp

Filesize
40KB

Download
memory/2152-7-0x0000000005420000-0x000000000543A000-memory.dmp

Filesize
104KB

Download
memory/2152-8-0x0000000008E70000-0x0000000008E78000-memory.dmp

Filesize
32KB

Download
memory/2152-9-0x00000000064E0000-0x00000000064EA000-memory.dmp

Filesize
40KB

Download
memory/2152-10-0x000000000BFD0000-0x000000000C08A000-memory.dmp

Filesize
744KB

Download
memory/2152-5-0x0000000004E50000-0x0000000004E60000-memory.dmp

Filesize
64KB

Download
memory/2152-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Filesize
584KB

Download
memory/2152-52-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2152-25-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2152-2-0x0000000005450000-0x00000000059F4000-memory.dmp

Filesize
5.6MB

Download
memory/2152-1-0x0000000000320000-0x0000000000422000-memory.dmp

Filesize
1.0MB

Download
memory/2152-0-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/2580-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2580-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3800-20-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/3800-92-0x0000000007210000-0x0000000007224000-memory.dmp

Filesize
80KB

Download
memory/3800-63-0x000000007F150000-0x000000007F160000-memory.dmp

Filesize
64KB

Download
memory/3800-21-0x0000000004720000-0x0000000004730000-memory.dmp

Filesize
64KB

Download
memory/3800-22-0x0000000004720000-0x0000000004730000-memory.dmp

Filesize
64KB

Download
memory/3800-75-0x0000000006270000-0x000000000628E000-memory.dmp

Filesize
120KB

Download
memory/3800-26-0x00000000055C0000-0x0000000005626000-memory.dmp

Filesize
408KB

Download
memory/3800-85-0x0000000006D20000-0x0000000006DC3000-memory.dmp

Filesize
652KB

Download
memory/3800-23-0x0000000004CD0000-0x0000000004CF2000-memory.dmp

Filesize
136KB

Download
memory/3800-101-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/3800-60-0x0000000004720000-0x0000000004730000-memory.dmp

Filesize
64KB

Download
memory/3800-89-0x0000000007250000-0x00000000072E6000-memory.dmp

Filesize
600KB

Download
memory/3800-64-0x000000006F650000-0x000000006F69C000-memory.dmp

Filesize
304KB

Download
memory/3800-91-0x0000000007200000-0x000000000720E000-memory.dmp

Filesize
56KB

Download
memory/4360-93-0x00000000076D0000-0x00000000076EA000-memory.dmp

Filesize
104KB

Download
memory/4360-86-0x00000000079D0000-0x000000000804A000-memory.dmp

Filesize
6.5MB

Download
memory/4360-94-0x00000000076B0000-0x00000000076B8000-memory.dmp

Filesize
32KB

Download
memory/4360-88-0x0000000007400000-0x000000000740A000-memory.dmp

Filesize
40KB

Download
memory/4360-59-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/4360-87-0x0000000007390000-0x00000000073AA000-memory.dmp

Filesize
104KB

Download
memory/4360-100-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/4360-49-0x00000000060F0000-0x000000000613C000-memory.dmp

Filesize
304KB

Download
memory/4360-47-0x0000000006060000-0x000000000607E000-memory.dmp

Filesize
120KB

Download
memory/4360-90-0x0000000007590000-0x00000000075A1000-memory.dmp

Filesize
68KB

Download
memory/4360-27-0x0000000005A00000-0x0000000005A66000-memory.dmp

Filesize
408KB

Download
memory/4360-65-0x000000006F650000-0x000000006F69C000-memory.dmp

Filesize
304KB

Download
memory/4360-61-0x0000000007230000-0x0000000007262000-memory.dmp

Filesize
200KB

Download
memory/4360-62-0x000000007F940000-0x000000007F950000-memory.dmp

Filesize
64KB

Download
memory/4360-18-0x0000000005260000-0x0000000005888000-memory.dmp

Filesize
6.2MB

Download
memory/4360-19-0x0000000004C20000-0x0000000004C30000-memory.dmp

Filesize
64KB

Download
memory/4360-17-0x00000000746A0000-0x0000000074E50000-memory.dmp

Filesize
7.7MB

Download
memory/4360-16-0x0000000004AA0000-0x0000000004AD6000-memory.dmp

Filesize
216KB

Download