remcos | 3e77bc5c8cd2052b5b8c14abce4ee3a2bc5d7568860d93524927734732dcaa25

Analysis

max time kernel
148s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 10:49

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General

Target

SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe
Size

73KB
MD5

ba28e223163c5b2ec9a8b3749dd8df88
SHA1

432148c92b5c723033225b14986a4dd80c1344ff
SHA256

3e77bc5c8cd2052b5b8c14abce4ee3a2bc5d7568860d93524927734732dcaa25
SHA512

e83c8f0a9b0aec5dba0b738c97c71088595601ed8cb019a2ea1073e08f549b3bd34d4b9e4a91c568214f53448739133680129c39f8bd65a4d3d0163a35911205
SSDEEP

768:bVOf4mUSU2Ip4jBqltCF0AxEjenoB69+FxF:ROA1SFHBWAxEjc+N

Score

10^/10

remcos 59b3ch7k27 discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

59b3ch7k27

59b3.ddns.net: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
remcos
mouse_option
false
mutex
Rmc-LEWDB1
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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4300 created 3420	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	56

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ozpagjqxzt = "C:\\Users\\Admin\\AppData\\Roaming\\Ozpagjqxzt.exe"	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4300 set thread context of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 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	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe
Token: SeDebugPrivilege	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89
PID 4300 wrote to memory of 4380	4300	SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3420
- C:\Users\Admin\AppData\Local\Temp\SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe
  "C:\Users\Admin\AppData\Local\Temp\SERVICE OR PRODUCT DESRIPTION AND COMPANY PROFILE.SCR.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4300
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4300-0-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/4300-1-0x00000000001F0000-0x0000000000208000-memory.dmp

Filesize
96KB

Download
memory/4300-2-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4300-3-0x0000000005410000-0x000000000552E000-memory.dmp

Filesize
1.1MB

Download
memory/4300-21-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-23-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-47-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-49-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-67-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-65-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-63-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-61-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-59-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-57-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-55-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-53-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-51-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-37-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-35-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-45-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-43-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-41-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-39-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-33-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-31-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-29-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-27-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-25-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-19-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-17-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-15-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-14-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-11-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-9-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-7-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-5-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-4-0x0000000005410000-0x0000000005528000-memory.dmp

Filesize
1.1MB

Download
memory/4300-1078-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4300-1080-0x00000000055B0000-0x00000000055FC000-memory.dmp

Filesize
304KB

Download
memory/4300-1079-0x0000000005690000-0x0000000005728000-memory.dmp

Filesize
608KB

Download
memory/4300-1085-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4300-1086-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4300-1084-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4300-1087-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/4300-1088-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4300-1089-0x0000000006FF0000-0x0000000007594000-memory.dmp

Filesize
5.6MB

Download
memory/4300-1090-0x0000000006A40000-0x0000000006A94000-memory.dmp

Filesize
336KB

Download
memory/4300-1097-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4380-1095-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4380-1104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download