remcos | 7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a

General

Target

completed payment Swift.exe
Size

606KB
MD5

2ba976f7e7c9a6fc2964962ec458ea15
SHA1

5d509c5b56fe74330f8fc03ce15db39758aab2cc
SHA256

7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a
SHA512

b74a253f2103bd68068e42868d34fe291123e73fc37e3675d7477ad683133cb75255cf982b5362cf1f456642158d26be81dc3930f3aff16d82a9c8a7afc4f68d
SSDEEP

12288:/gHApKp8VRCWf29VVAGoTdzzL8blv76cN6x8S5:IUKpARCWf2/oTBLS+O6x8S5

Score

10^/10

remcos googlegroupaccount discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

googlegroupaccount

C2

213.152.187.241:12776

10.14.10.19:12776

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
googlegroupaccount.exe
copy_folder
googlegroupaccount
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-6741XM
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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
2900	googlegroupaccount.exe
2648	googlegroupaccount.exe

Loads dropped DLL 4 IoCs

pid	Process
2036	completed payment Swift.exe
2036	completed payment Swift.exe
2900	googlegroupaccount.exe
2900	googlegroupaccount.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe

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	completed payment Swift.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2648	googlegroupaccount.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2900	2036	completed payment Swift.exe	31
PID 2036 wrote to memory of 2900	2036	completed payment Swift.exe	31
PID 2036 wrote to memory of 2900	2036	completed payment Swift.exe	31
PID 2036 wrote to memory of 2900	2036	completed payment Swift.exe	31
PID 2900 wrote to memory of 2648	2900	googlegroupaccount.exe	32
PID 2900 wrote to memory of 2648	2900	googlegroupaccount.exe	32
PID 2900 wrote to memory of 2648	2900	googlegroupaccount.exe	32
PID 2900 wrote to memory of 2648	2900	googlegroupaccount.exe	32

C:\Users\Admin\AppData\Local\Temp\completed payment Swift.exe
"C:\Users\Admin\AppData\Local\Temp\completed payment Swift.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\googlegroupaccount.exe
  "C:\Users\Admin\AppData\Local\Temp\googlegroupaccount.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
    "C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2648

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
acd7767bcc4dd520d86a572effc72167

SHA1
cdbf09fb263c311533d534417ed83c53064a4e58

SHA256
90725f94079dc0dad9a6d5dd74d0a103431dd497bc78be247a020306970ebf7c

SHA512
1990903d05e6b1cf805cb3b5e3e9700ea2becfbabfcc9d2ac352a85f6f4729c0d3a2b329758c570e194d6e9d82614427edbcfc572c05b2da168e02d07a978709

Download Submit
\Users\Admin\AppData\Local\Temp\googlegroupaccount.exe

Filesize
482KB

MD5
c56a3939dafbc517a328c8e29d17fa53

SHA1
88346ff41815e55fd4f4ade5fb2653a8291461b0

SHA256
10327b91fd7e1718d3e1faedb72677a06f0e5b20fb4d11b5668796eba8b22937

SHA512
d1211997fa09301563e4480d03b327dd04039f4dfb52c287edf02de4729988c8b0235aa546d9d711bd4ecc89e16aec206813eb391137535dc54259803d56ee23

Download Submit
memory/2036-0-0x00000000740EE000-0x00000000740EF000-memory.dmp

Filesize
4KB

Download
memory/2036-1-0x0000000000250000-0x00000000002EE000-memory.dmp

Filesize
632KB

Download
memory/2036-3-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download
memory/2036-14-0x00000000740E0000-0x00000000747CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads