remcos | dc1a85f49c26ef787959e2e9bd9d10259be7708db10895af90c02e512d215623

General

Target

be817589827272888d6cb6aceae789be_JaffaCakes118.exe
Size

260KB
MD5

be817589827272888d6cb6aceae789be
SHA1

e10e161f0a936f2448a8f31e5d2a2dcec42f9bce
SHA256

dc1a85f49c26ef787959e2e9bd9d10259be7708db10895af90c02e512d215623
SHA512

f02c3f13a2339193594f8ac54b2924ffffad5a8068aa243b17f5685070a67301ead84103bde8a34765149ffa8f050cf523d647d85793b002864c44989caa9c67
SSDEEP

6144:B6E3WpQMV/0AfoXvXAa5EQJJfDo5WvL6xU3RUCj5:B6FQMGpfwkDs82tE

Score

10^/10

remcos host discovery execution rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

162.218.211.157:8780

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
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_rjetovsmjxvhqax
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

Beds Protector Packer 1 IoCs

Detects Beds Protector packer used to load .NET malware.

resource	yara_rule
behavioral2/memory/4440-6-0x0000000005A80000-0x0000000005AC0000-memory.dmp	beds_protector

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe	Powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4440 set thread context of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3044	Powershell.exe

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	be817589827272888d6cb6aceae789be_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	be817589827272888d6cb6aceae789be_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3044	Powershell.exe
4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe
4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe
3044	Powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	Powershell.exe
Token: SeDebugPrivilege	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3152	be817589827272888d6cb6aceae789be_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3152	be817589827272888d6cb6aceae789be_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3152	be817589827272888d6cb6aceae789be_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4440 wrote to memory of 3044	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	86
PID 4440 wrote to memory of 3044	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	86
PID 4440 wrote to memory of 3044	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	86
PID 4440 wrote to memory of 2864	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	88
PID 4440 wrote to memory of 2864	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	88
PID 4440 wrote to memory of 2864	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	88
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89
PID 4440 wrote to memory of 3152	4440	be817589827272888d6cb6aceae789be_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Drivers.exe'
  2⤵
  - Drops startup file
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3044
- C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe"
  2⤵
  PID:2864
- C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\be817589827272888d6cb6aceae789be_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5y15xzo5.bwq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3044-8-0x0000000004E70000-0x0000000004EA6000-memory.dmp

Filesize
216KB

Download
memory/3044-42-0x0000000006A10000-0x0000000006A32000-memory.dmp

Filesize
136KB

Download
memory/3044-14-0x0000000005510000-0x0000000005576000-memory.dmp

Filesize
408KB

Download
memory/3044-46-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/3044-41-0x0000000006970000-0x000000000698A000-memory.dmp

Filesize
104KB

Download
memory/3044-40-0x0000000007470000-0x0000000007506000-memory.dmp

Filesize
600KB

Download
memory/3044-21-0x0000000005E60000-0x00000000061B4000-memory.dmp

Filesize
3.3MB

Download
memory/3044-39-0x00000000064E0000-0x000000000652C000-memory.dmp

Filesize
304KB

Download
memory/3044-9-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/3044-11-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/3044-12-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/3044-10-0x00000000055D0000-0x0000000005BF8000-memory.dmp

Filesize
6.2MB

Download
memory/3044-13-0x0000000005370000-0x0000000005392000-memory.dmp

Filesize
136KB

Download
memory/3044-15-0x0000000005DF0000-0x0000000005E56000-memory.dmp

Filesize
408KB

Download
memory/3044-38-0x00000000064B0000-0x00000000064CE000-memory.dmp

Filesize
120KB

Download
memory/3152-47-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3152-34-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3152-35-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3152-27-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3152-30-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3152-31-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3152-32-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/4440-7-0x0000000005B60000-0x0000000005BFC000-memory.dmp

Filesize
624KB

Download
memory/4440-2-0x0000000005F50000-0x000000000641C000-memory.dmp

Filesize
4.8MB

Download
memory/4440-26-0x0000000005920000-0x0000000005936000-memory.dmp

Filesize
88KB

Download
memory/4440-3-0x0000000005930000-0x00000000059C2000-memory.dmp

Filesize
584KB

Download
memory/4440-0-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/4440-6-0x0000000005A80000-0x0000000005AC0000-memory.dmp

Filesize
256KB

Download
memory/4440-5-0x00000000069D0000-0x0000000006F74000-memory.dmp

Filesize
5.6MB

Download
memory/4440-1-0x0000000000F60000-0x0000000000FA8000-memory.dmp

Filesize
288KB

Download
memory/4440-4-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download
memory/4440-33-0x0000000074640000-0x0000000074DF0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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