remcos | db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29-04-2024 01:43

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General

Target

db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
Size

1.1MB
MD5

e4df9a487d5c234c9bf5d406596404bf
SHA1

8111cc21c3fcd1ea98e398e92f190ce98769f3e5
SHA256

db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8
SHA512

379e55976e6e5d9ddc1bdeb30dda8b04f75a827862af26f3670dd53039a0aac11e79e76517ff4281b17a1e7be0832e5be8120088729cb67036e388517fcb7c65
SSDEEP

24576:sfPjKr5BNDRLpxLMD/wc2IUbvYuWtu0uSJ6fd9tOF3kF:uk5BN9TLlLIx5truxf5IUF

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

sembe.duckdns.org:14645

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
nots.dat
keylog_flag
false
keylog_folder
note
keylog_path
%Temp%
mouse_option
false
mutex
Rmc-999Z97
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

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 7 IoCs

resource	yara_rule
behavioral2/memory/4404-33-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/4404-34-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/4404-40-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/4404-41-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/4404-37-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/4404-36-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/4404-74-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92

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

pid	Process
888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
1992	powershell.exe
2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
1992	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
Token: SeDebugPrivilege	1992	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4404	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1992	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	87
PID 2204 wrote to memory of 1992	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	87
PID 2204 wrote to memory of 1992	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	87
PID 2204 wrote to memory of 888	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	89
PID 2204 wrote to memory of 888	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	89
PID 2204 wrote to memory of 888	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	89
PID 2204 wrote to memory of 2012	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	91
PID 2204 wrote to memory of 2012	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	91
PID 2204 wrote to memory of 2012	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	91
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92
PID 2204 wrote to memory of 4404	2204	db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe	92

C:\Users\Admin\AppData\Local\Temp\db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
"C:\Users\Admin\AppData\Local\Temp\db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TGSbzeKpGKpZ.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1992
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TGSbzeKpGKpZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7242.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:888
- C:\Users\Admin\AppData\Local\Temp\db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
  "C:\Users\Admin\AppData\Local\Temp\db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe"
  2⤵
  PID:2012
- C:\Users\Admin\AppData\Local\Temp\db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe
  "C:\Users\Admin\AppData\Local\Temp\db83be38acf27d84834da055d570805c8710fbef271e827ca8a645b989c70be8.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

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\Temp\__PSScriptPolicyTest_n2rutsdf.1qj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\note\nots.dat

Filesize
144B

MD5
7672e78d26a3987eecf6cefaecf08b18

SHA1
89bbb6bb18428c1d5e09e8e17aa180a6b1b26752

SHA256
554f084c64d252bc14be52b9f4092b853210c49fbcbb87a18c1e2071129df6f4

SHA512
aca76f591df2d3f484ce233dcc790889049845f90e126b1a067c0565cde9dd89719ae38ff2a3d45539508909449f3f9f68d0fa996764eb82ed002a4990e257f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7242.tmp

Filesize
1KB

MD5
3321e99dc31ecee56c864f7cb54ef9ec

SHA1
58efcd35424625b391d462a5381cf83c2c7ec2f9

SHA256
dcc15267d7f37d66ef52e9b8298f4b9d71d75ea88f0304ef80f43ca3bc788abd

SHA512
e17af12d18c2339ee1b39bbb1ebedbe570021d2959e883d4192191bfa780c45e0ced0e58fb3d055576e6b7b5209c76250f6852999c53c0217d42d12f7c18c618

Download Submit
memory/1992-57-0x0000000007220000-0x00000000072C3000-memory.dmp

Filesize
652KB

Download
memory/1992-58-0x0000000007970000-0x0000000007FEA000-memory.dmp

Filesize
6.5MB

Download
memory/1992-69-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/1992-66-0x0000000007650000-0x0000000007658000-memory.dmp

Filesize
32KB

Download
memory/1992-65-0x0000000007670000-0x000000000768A000-memory.dmp

Filesize
104KB

Download
memory/1992-64-0x0000000007570000-0x0000000007584000-memory.dmp

Filesize
80KB

Download
memory/1992-63-0x0000000007560000-0x000000000756E000-memory.dmp

Filesize
56KB

Download
memory/1992-14-0x0000000002710000-0x0000000002746000-memory.dmp

Filesize
216KB

Download
memory/1992-16-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/1992-15-0x0000000005370000-0x0000000005998000-memory.dmp

Filesize
6.2MB

Download
memory/1992-62-0x0000000007530000-0x0000000007541000-memory.dmp

Filesize
68KB

Download
memory/1992-18-0x0000000004D30000-0x0000000004D40000-memory.dmp

Filesize
64KB

Download
memory/1992-17-0x0000000004D30000-0x0000000004D40000-memory.dmp

Filesize
64KB

Download
memory/1992-22-0x00000000052C0000-0x0000000005326000-memory.dmp

Filesize
408KB

Download
memory/1992-21-0x00000000051E0000-0x0000000005246000-memory.dmp

Filesize
408KB

Download
memory/1992-61-0x00000000075B0000-0x0000000007646000-memory.dmp

Filesize
600KB

Download
memory/1992-20-0x0000000005140000-0x0000000005162000-memory.dmp

Filesize
136KB

Download
memory/1992-28-0x0000000005A10000-0x0000000005D64000-memory.dmp

Filesize
3.3MB

Download
memory/1992-60-0x00000000073A0000-0x00000000073AA000-memory.dmp

Filesize
40KB

Download
memory/1992-59-0x0000000007330000-0x000000000734A000-memory.dmp

Filesize
104KB

Download
memory/1992-56-0x00000000065D0000-0x00000000065EE000-memory.dmp

Filesize
120KB

Download
memory/1992-46-0x0000000075260000-0x00000000752AC000-memory.dmp

Filesize
304KB

Download
memory/1992-45-0x0000000006FE0000-0x0000000007012000-memory.dmp

Filesize
200KB

Download
memory/1992-44-0x0000000006550000-0x000000000659C000-memory.dmp

Filesize
304KB

Download
memory/1992-42-0x0000000006010000-0x000000000602E000-memory.dmp

Filesize
120KB

Download
memory/2204-8-0x0000000009560000-0x0000000009620000-memory.dmp

Filesize
768KB

Download
memory/2204-2-0x0000000005B30000-0x00000000060D4000-memory.dmp

Filesize
5.6MB

Download
memory/2204-3-0x0000000005580000-0x0000000005612000-memory.dmp

Filesize
584KB

Download
memory/2204-1-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2204-5-0x0000000005810000-0x0000000005820000-memory.dmp

Filesize
64KB

Download
memory/2204-0-0x0000000000A10000-0x0000000000B24000-memory.dmp

Filesize
1.1MB

Download
memory/2204-4-0x0000000005510000-0x000000000551A000-memory.dmp

Filesize
40KB

Download
memory/2204-7-0x0000000005B20000-0x0000000005B34000-memory.dmp

Filesize
80KB

Download
memory/2204-43-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2204-9-0x000000000C6C0000-0x000000000C75C000-memory.dmp

Filesize
624KB

Download
memory/2204-6-0x00000000057C0000-0x00000000057E0000-memory.dmp

Filesize
128KB

Download
memory/4404-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4404-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4404-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4404-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4404-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4404-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4404-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download