remcos | 7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a

General

Target

7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe
Size

606KB
MD5

2ba976f7e7c9a6fc2964962ec458ea15
SHA1

5d509c5b56fe74330f8fc03ce15db39758aab2cc
SHA256

7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a
SHA512

b74a253f2103bd68068e42868d34fe291123e73fc37e3675d7477ad683133cb75255cf982b5362cf1f456642158d26be81dc3930f3aff16d82a9c8a7afc4f68d
SSDEEP

12288:/gHApKp8VRCWf29VVAGoTdzzL8blv76cN6x8S5:IUKpARCWf2/oTBLS+O6x8S5

Score

10^/10

remcos googlegroupaccount collection discovery persistence rat spyware stealer

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

Detected Nirsoft tools 6 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2980-34-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/1172-32-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/920-38-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/920-41-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1172-46-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2980-55-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2980-34-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2980-55-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1172-32-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1172-46-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Executes dropped EXE 5 IoCs

pid	Process
2792	googlegroupaccount.exe
2756	googlegroupaccount.exe
1172	googlegroupaccount.exe
2980	googlegroupaccount.exe
920	googlegroupaccount.exe

Loads dropped DLL 4 IoCs

pid	Process
2816	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe
2816	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe
2792	googlegroupaccount.exe
2792	googlegroupaccount.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

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	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\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-1-5-21-3692679935-4019334568-335155002-1000\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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 1172	2756	googlegroupaccount.exe	32
PID 2756 set thread context of 2980	2756	googlegroupaccount.exe	33
PID 2756 set thread context of 920	2756	googlegroupaccount.exe	34

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 6 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	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1172	googlegroupaccount.exe
1172	googlegroupaccount.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2756	googlegroupaccount.exe
2756	googlegroupaccount.exe
2756	googlegroupaccount.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	920	googlegroupaccount.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2756	googlegroupaccount.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2792	2816	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe	30
PID 2816 wrote to memory of 2792	2816	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe	30
PID 2816 wrote to memory of 2792	2816	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe	30
PID 2816 wrote to memory of 2792	2816	7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe	30
PID 2792 wrote to memory of 2756	2792	googlegroupaccount.exe	31
PID 2792 wrote to memory of 2756	2792	googlegroupaccount.exe	31
PID 2792 wrote to memory of 2756	2792	googlegroupaccount.exe	31
PID 2792 wrote to memory of 2756	2792	googlegroupaccount.exe	31
PID 2756 wrote to memory of 1172	2756	googlegroupaccount.exe	32
PID 2756 wrote to memory of 1172	2756	googlegroupaccount.exe	32
PID 2756 wrote to memory of 1172	2756	googlegroupaccount.exe	32
PID 2756 wrote to memory of 1172	2756	googlegroupaccount.exe	32
PID 2756 wrote to memory of 2980	2756	googlegroupaccount.exe	33
PID 2756 wrote to memory of 2980	2756	googlegroupaccount.exe	33
PID 2756 wrote to memory of 2980	2756	googlegroupaccount.exe	33
PID 2756 wrote to memory of 2980	2756	googlegroupaccount.exe	33
PID 2756 wrote to memory of 920	2756	googlegroupaccount.exe	34
PID 2756 wrote to memory of 920	2756	googlegroupaccount.exe	34
PID 2756 wrote to memory of 920	2756	googlegroupaccount.exe	34
PID 2756 wrote to memory of 920	2756	googlegroupaccount.exe	34

C:\Users\Admin\AppData\Local\Temp\7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe
"C:\Users\Admin\AppData\Local\Temp\7c79a0a702c401e92aa955ac6645577d5543df9f5556c202adb53951c3acbe6a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- 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:2792
- - 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
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2756
  - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
      C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\rvkmggrfsrmdufveotfwkarwpssrfry"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1172
  - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
      C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\txpfhychgzeiwljixeryvnmnxykaycwjmt"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:2980
  - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
      C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\ercxirn"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:920

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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
de27bd98cbdd70983237b65897514216

SHA1
bea59106bce48ed5a61ce31288732ebc3fec2ca3

SHA256
d84aec276d8b779e1877ae390b9ea329dce6a7b04554f0b5cf668325632b6007

SHA512
11fe31ad55d4e38744745bf142bd13ef4d9f189d50db4dc41c78868d118980413d0e343f5852e83227956340ce59448c8946a11dd2cd611e2cc9f85fb508faf3

Download Submit
C:\Users\Admin\AppData\Local\Temp\rvkmggrfsrmdufveotfwkarwpssrfry

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

Filesize
482KB

MD5
c56a3939dafbc517a328c8e29d17fa53

SHA1
88346ff41815e55fd4f4ade5fb2653a8291461b0

SHA256
10327b91fd7e1718d3e1faedb72677a06f0e5b20fb4d11b5668796eba8b22937

SHA512
d1211997fa09301563e4480d03b327dd04039f4dfb52c287edf02de4729988c8b0235aa546d9d711bd4ecc89e16aec206813eb391137535dc54259803d56ee23

Download Submit
memory/920-35-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/920-41-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/920-38-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/920-37-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1172-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1172-28-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1172-46-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1172-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2756-54-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2756-53-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2756-50-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2816-12-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-3-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2816-1-0x0000000000FD0000-0x000000000106E000-memory.dmp

Filesize
632KB

Download
memory/2980-33-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2980-31-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2980-34-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2980-55-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads