remcos | 9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45

General

Target

9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
Size

1.4MB
MD5

ea80486d454b54f865101542a8829201
SHA1

8fae0f5f19bd77d18a123897c929efcee4b5f290
SHA256

9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45
SHA512

1cb99bc32bc52d7b814833cac5a8b11749e5174668dd18a4488db44fe968df58018f1f84c89b8262d37a8a6234c56b1e2b13f7d61892e11ee0d4f587cda99f34
SSDEEP

24576:vD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJlH8:vF+QrFUBgq25eK/8

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
2860	sbietrcl.exe
2724	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 2724	2860	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 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	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
2860	sbietrcl.exe
2860	sbietrcl.exe
2860	sbietrcl.exe
2860	sbietrcl.exe
2860	sbietrcl.exe
2860	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
Token: SeDebugPrivilege	2860	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2860	2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	30
PID 2128 wrote to memory of 2860	2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	30
PID 2128 wrote to memory of 2860	2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	30
PID 2128 wrote to memory of 2860	2128	9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe	30
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31
PID 2860 wrote to memory of 2724	2860	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.exe
"C:\Users\Admin\AppData\Local\Temp\9d8ae49163d35db4d97847daffced4f391beccc963eb052420602dceb7edbb45.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:2128
- 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:2860
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:2724

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

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
342B

MD5
0c497e2e5a8f871349bb770bd56d0418

SHA1
daab546a1d60b1a293522eb124780d13f91dcf40

SHA256
5f9abc74fb193f0ed8e4601cba6a6f21cdce759307eded4e0bc1e8f0c3af2775

SHA512
b782e3b5045ea1d47a35d42dde014089fdbbafda2d23889a29c2fe6394ea6288ced2aa21da503b0cd65c616649e764c40c7e60904860339cdef8da1ebf00877a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9C8D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.4MB

MD5
4f564370501ccc25538bb90137e58021

SHA1
66ac6ac7d5d0d0f951719581d98a04c592fc5aa9

SHA256
4d91925400a6196c61cf0f4a391af526a08e641bcf7509b03ab328574169c081

SHA512
6caf5f42dafa36403ae1ea6c953aba3ddebde3e68f605f8ee139eed802a682e0d313c9c37413beb94efa65e5a73b74673cc36f6af172aa1e2f2e3f7b1b42514e

Download Submit
memory/2128-25-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-3-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-0-0x00000000745D1000-0x00000000745D2000-memory.dmp

Filesize
4KB

Download
memory/2128-12-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-32-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-13-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2128-1-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2724-53-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2724-47-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2724-49-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2724-51-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2724-45-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2724-59-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2724-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-34-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2860-44-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2860-43-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2860-33-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/2860-62-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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