remcos | c46e7b8033aac457b4387c32fba170baf72bfb5a0b378523b225cc51d7f2f92d

General

Target

3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
Size

2.2MB
MD5

3f97d2a4e5b5a16d9607fe9dfb7ca2c0
SHA1

6264e3311d3c3b0b2ee7b866c3d0a1452031d5e4
SHA256

c46e7b8033aac457b4387c32fba170baf72bfb5a0b378523b225cc51d7f2f92d
SHA512

9b1c08df12092774e82f7a2b4c3196eb9a56796581f73ecd321582106254791a48216d448d91f966fc64017ae2e6b0dca116e421d56a8b515a8768857e0cb44c
SSDEEP

24576:mD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJmFu:mp7E+QrFUBgq2Snau

Score

10^/10

remcos host credential_access 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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Executes dropped EXE 2 IoCs

pid	Process
2788	sbietrcl.exe
2792	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 2792	2788	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	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.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
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
2788	sbietrcl.exe
2788	sbietrcl.exe
2788	sbietrcl.exe
2788	sbietrcl.exe
2788	sbietrcl.exe
2788	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
Token: SeDebugPrivilege	2788	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2792	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2788	1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe	30
PID 1872 wrote to memory of 2788	1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe	30
PID 1872 wrote to memory of 2788	1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe	30
PID 1872 wrote to memory of 2788	1872	3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe	30
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31
PID 2788 wrote to memory of 2792	2788	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.exe
"C:\Users\Admin\AppData\Local\Temp\3f97d2a4e5b5a16d9607fe9dfb7ca2c0N.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:1872
- 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:2788
- - 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:2792

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
342B

MD5
0bee41a314608c6b0a5fb524772a9f54

SHA1
f680ab9c5c6ad25e6623f3cd390ed755bef602b9

SHA256
fe4640b1176968a515111a03c957697f97ab6eadeecc496b24811f8b546a75df

SHA512
b68c47f6d3aa8baabe7188d9b483bd8d534cabd5501ec96fe6658d993c18cf75a2e1c9a2e5b2697701eaa92dd79fd7e1710894cda08ede309994d3c3ffa54173

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabEDC8.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.2MB

MD5
beafe414d70755a3697261e41e73eb70

SHA1
51ce07152ed94889da60b53ad0988142d324eaf8

SHA256
19a0ef1848ee777d34ddd8c8f6292b33ac27fa400e8e6037528155bef0154c47

SHA512
7025f4efaa99087cced2120f1a95f850f9a0398a172e36067a044187738aa95cc5f9a303eebdc8c10f28d780d3d98550c635d728f5a5b2edf73cc6ae64c84e48

Download Submit
memory/1872-12-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-13-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-25-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-32-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-2-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-1-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-0-0x0000000074061000-0x0000000074062000-memory.dmp

Filesize
4KB

Download
memory/2788-65-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-34-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-33-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-43-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/2788-44-0x0000000074060000-0x000000007460B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2792-68-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads