remcos | ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60

General

Target

ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
Size

1.5MB
MD5

0b1fe6002fc4c37597c3da97607f2940
SHA1

8783008bda630fc748c71069d2a9a827d05e47b2
SHA256

ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60
SHA512

4a8ae65041e42020ed0297ce26b0180ad79f641b14a09e2080278e758b88ec4ff3d942f5d7da418a80c0a52bab2ae346da9d6cca2de24f458c1d9f437c73e016
SSDEEP

24576:ID39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJB8:IF+QrFUBgq25eKb8

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe

Executes dropped EXE 2 IoCs

pid	Process
2552	sbietrcl.exe
2064	sbietrcl.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2552 set thread context of 2064	2552	sbietrcl.exe	85

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	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
2552	sbietrcl.exe
2552	sbietrcl.exe
2552	sbietrcl.exe
2552	sbietrcl.exe
2552	sbietrcl.exe
2552	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
Token: SeDebugPrivilege	2552	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 2552	3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe	82
PID 3084 wrote to memory of 2552	3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe	82
PID 3084 wrote to memory of 2552	3084	ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe	82
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85
PID 2552 wrote to memory of 2064	2552	sbietrcl.exe	85

C:\Users\Admin\AppData\Local\Temp\ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe
"C:\Users\Admin\AppData\Local\Temp\ee126498c4b807cf5c2ec8fd1d034d0ed2daf4226cad9d1507ae21f6e336ca60N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3084
- 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:2552
- - 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:2064

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

Query Registry

1

T1012

System Information Discovery

2

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\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.5MB

MD5
a023c440965f338cfa973d70d11ce003

SHA1
33c4efe7121d8fb41bebda3c92aa5168e637209c

SHA256
357a8e50670cb6d7e205768ef6eee31de810351ab5182ff50a37e569d603dfd6

SHA512
2f8a85e0eeaa70261e6ccf8fdb453cd0de8e3095756a0ef3ddb60aad869dc461cdbb8602b6e781113e1ba19f03ba1b48841124512c923b5b0c6d71c84082018f

Download Submit
memory/2064-36-0x0000000000710000-0x0000000000727000-memory.dmp

Filesize
92KB

Download
memory/2552-40-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/2552-33-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/2552-32-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/2552-31-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/3084-5-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/3084-19-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/3084-30-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/3084-18-0x0000000074E32000-0x0000000074E33000-memory.dmp

Filesize
4KB

Download
memory/3084-6-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/3084-0-0x0000000074E32000-0x0000000074E33000-memory.dmp

Filesize
4KB

Download
memory/3084-2-0x0000000074E30000-0x00000000753E1000-memory.dmp

Filesize
5.7MB

Download
memory/3084-1-0x0000000074E30000-0x00000000753E1000-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