remcos | e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736

General

Target

e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
Size

1.5MB
MD5

727ef110c7a27f21d4bbfc8b0e2edd92
SHA1

6e05d62821268c5d783d53ccde347b9a6ca588c8
SHA256

e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736
SHA512

661a0b4005a001e01e62d33ff05650ebad1164a9845aa5b2a9ec277e061acb798bd3ab04cd41335c15db694b13a00d9d31f3428120bc7e1af17aa78e3b8e310a
SSDEEP

24576:2D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoc:2p7E+QrFUBgq2R

Score

10^/10

remcos host persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
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 potentially bypassing UAC using eventvwr.exe 9 IoCs

resource	yara_rule
behavioral1/memory/2712-57-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-66-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-65-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-64-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-61-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-60-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-53-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-51-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2712-70-0x0000000000400000-0x0000000000417000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

Executes dropped EXE 2 IoCs

pid	Process
2612	sbietrcl.exe
2712	sbietrcl.exe

Loads dropped DLL 2 IoCs

pid	Process
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2612	sbietrcl.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2612 set thread context of 2712	2612	sbietrcl.exe	29

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
2612	sbietrcl.exe
2612	sbietrcl.exe
2612	sbietrcl.exe
2612	sbietrcl.exe
2612	sbietrcl.exe
2612	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
Token: SeDebugPrivilege	2612	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2612	2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	28
PID 2032 wrote to memory of 2612	2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	28
PID 2032 wrote to memory of 2612	2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	28
PID 2032 wrote to memory of 2612	2032	e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe	28
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29
PID 2612 wrote to memory of 2712	2612	sbietrcl.exe	29

C:\Users\Admin\AppData\Local\Temp\e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe
"C:\Users\Admin\AppData\Local\Temp\e1d3e9feb67fde0b13f317d2bbfe700a6cc1249658b7b5a6970c944872a2e736.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
b5ef7deec9bf63035ecac4c748a0b1a9

SHA1
93c8e48f2e650664311badabb72b39f0f0937b92

SHA256
002822def6b3123cfd8cd064087a3430789456b701aa987bf7ea257e745139e9

SHA512
db2c1f701cebca8d6e38b06ec211a6c565261abfcb609a6d2ad170cdd9136075af74220f862f1bf4fee4fe700ad7e93f1286d14e046635a0c9fc4d29943a20a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2DD4.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.5MB

MD5
b52ecf4823be7100eea7b8eafc1e9d40

SHA1
b13e181f17ea3993edecbf48403e53c97ed7caa2

SHA256
86335e3ec1f2ec66a36a3aec395890819770588786af63e833c5da983b9ae565

SHA512
24438ea4970e7d0835a3524974a1c5895122ead04203796f6103f53739a1534636e51233d10f4715e78c91647db7b7e677a9f65ddc566a92ec9c2d3e4133ac7e

Download Submit
memory/2032-1-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2032-2-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2032-12-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2032-13-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2032-0-0x0000000074941000-0x0000000074942000-memory.dmp

Filesize
4KB

Download
memory/2032-31-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2612-43-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2612-67-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2612-42-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2612-32-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2612-33-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2712-70-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads