remcos | 77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580

General

Target

77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
Size

2.1MB
MD5

b0a24b34468b90ebcf455b54126c1930
SHA1

6a156c198e91ec526bf78136c2c2b8e9cb095516
SHA256

77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580
SHA512

10f556b905252dcf694e35fc0396940fb847492dfd2d0ba16f5f7fd3ec8e7c0b41d1e520083b28045d949a871a8fd04193e6b9205a319ecca244dc447c839c67
SSDEEP

24576:KD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73Anet9/wi:Kp7E+QrFUBgq26

Score

10^/10

remcos host discovery 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

Executes dropped EXE 2 IoCs

pid	Process
2700	sbietrcl.exe
2056	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 2056	2700	sbietrcl.exe	31

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
2700	sbietrcl.exe
2700	sbietrcl.exe
2700	sbietrcl.exe
2700	sbietrcl.exe
2700	sbietrcl.exe
2700	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
Token: SeDebugPrivilege	2700	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2056	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2700	2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe	30
PID 2692 wrote to memory of 2700	2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe	30
PID 2692 wrote to memory of 2700	2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe	30
PID 2692 wrote to memory of 2700	2692	77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe	30
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31
PID 2700 wrote to memory of 2056	2700	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe
"C:\Users\Admin\AppData\Local\Temp\77a85c6ea9e0e2ddc1a7fbd25174fde67e8a9e14262c998f3c06f069411d8580N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2056

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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
342B

MD5
6e7512aad99c04917e6d4cdce21c7ef4

SHA1
07d868eb0f2a6b818023c2f74ff823c9627e5cd2

SHA256
152efbe5d16ff81926ff9e768c50615b01155f7f929e838718d28fb877270e8f

SHA512
ad7ecc70ff7c4dfbfdaec062efe8ea53497f77c88220cf9384d71f156d2bcfd1fb765373561427b6301bdf782744e541289ff28388978d52807ada52da3826df

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabF8B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.1MB

MD5
ababa51643ae8ccd97fafab0177c9c84

SHA1
f8d66c8c34d42c326fcbdbfbe9b3f67520c3b495

SHA256
ae0fe4943c79fcf39331a302bf117dfc04b4004511ed49219a1b67bfe81d346b

SHA512
166d23a5d3a501a7594859bde1ef58738a269b360756215cc721baa335a19516c94e9ec620cd64e2ec99fba1258a9805cac76216d5a83c949cde7d452cbc8876

Download Submit
memory/2056-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2056-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2056-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-1-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-0-0x0000000074331000-0x0000000074332000-memory.dmp

Filesize
4KB

Download
memory/2692-13-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-2-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-32-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-12-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2692-25-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2700-43-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2700-33-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2700-34-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download
memory/2700-61-0x0000000074330000-0x00000000748DB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads