remcos | 391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976

General

Target

391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
Size

1.9MB
MD5

677fc7eeaf03128bbf4377f677c10446
SHA1

5f7cceb467a62583b64a9dc6445d253984332135
SHA256

391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976
SHA512

dfab572fa693d1d78fa9fd1ddee2a11afeeb2e51ed6aacd6fc70415656296cbea1f32c8e3835ceb36e744406508f883f30b29a5932eb24ed7a9243b06e8fc95e
SSDEEP

24576:uD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH697:uF+QrFUBgq25eKu697

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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
2156	sbietrcl.exe
3012	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2156 set thread context of 3012	2156	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	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.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
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
2156	sbietrcl.exe
2156	sbietrcl.exe
2156	sbietrcl.exe
2156	sbietrcl.exe
2156	sbietrcl.exe
2156	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
Token: SeDebugPrivilege	2156	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3012	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2156	2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe	30
PID 2528 wrote to memory of 2156	2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe	30
PID 2528 wrote to memory of 2156	2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe	30
PID 2528 wrote to memory of 2156	2528	391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe	30
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31
PID 2156 wrote to memory of 3012	2156	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.exe
"C:\Users\Admin\AppData\Local\Temp\391b121e9e8615de5696b86f27d250c35e685f8a08ebf27f0242eef9e5ac6976.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:2528
- 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:2156
- - 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:3012

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\Content\94308059B57B3142E455B38A6EB92015

Filesize
71KB

MD5
83142242e97b8953c386f988aa694e4a

SHA1
833ed12fc15b356136dcdd27c61a50f59c5c7d50

SHA256
d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

SHA512
bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

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

Filesize
344B

MD5
3f0ca62ac68e84c6fec24938932fc839

SHA1
b5d387d2ae5894908ef8fcbea7aa64a41a3f7993

SHA256
39b5ad2721887b473430e7de259beb096c9fa0e1a4ff84a9d6774f05ee72d367

SHA512
5754fa1775aece38c5d73717b4393df056dd2a5604e5097edc7cf85adcebb186679db65b279a4c4ff92ec456858ecc0b071c14e561761f41690074bf160afba0

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

Filesize
344B

MD5
afc2c2900b39999d5f493ac479ee39f5

SHA1
6994b4d6b557385cfda473169f63dee67ea4ff73

SHA256
575eb7816eee476c28784974eb1b8203064074035dc85559cd953c81dfc47a14

SHA512
c69095636f249e07aa827c9e2cd6dedede9c94b88df624d84672d96700f5dc6fe7128b0b4f2bb0fa17c9103505e951bfed8be76f576e85923e666aa17507a12d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab89AB.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar89BE.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar8F54.tmp

Filesize
183KB

MD5
109cab5505f5e065b63d01361467a83b

SHA1
4ed78955b9272a9ed689b51bf2bf4a86a25e53fc

SHA256
ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673

SHA512
753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc

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

Filesize
1.9MB

MD5
56bc124fe3f30a5923e863b6a99983dd

SHA1
99a4bc31fb4122cf06db4eaa058ce046d83ae690

SHA256
f64ccf87debcb61a2902846df772dc56faee72ceee846a4397126ddcc8789f88

SHA512
b3f6c5934b5275b1d1e571a3e861bb405fec072f742846b8b35deb8c2a7cb5fafcb4cf4fa3e8b3c094761f6f5132f70dd423fe57f2dcdcf51453cd7bfc314ae9

Download Submit
memory/2156-229-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2156-203-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-202-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-2-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-195-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-182-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-181-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-0-0x0000000074631000-0x0000000074632000-memory.dmp

Filesize
4KB

Download
memory/2528-1-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-194-0x0000000074630000-0x0000000074BDB000-memory.dmp

Filesize
5.7MB

Download
memory/3012-226-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-215-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-233-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-234-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-230-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-228-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-225-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3012-223-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-221-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-219-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3012-217-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads