remcos | f8e75ae7b73058c83d8e49afd902e29dbd5dc808017d7ec736a8f1aa0ad88c51

General

Target

baea8f92a509da346b2785803537713d_JaffaCakes118.exe
Size

814KB
MD5

baea8f92a509da346b2785803537713d
SHA1

35ec1fce1fd39a8fad37e88ccb25c859fc21b297
SHA256

f8e75ae7b73058c83d8e49afd902e29dbd5dc808017d7ec736a8f1aa0ad88c51
SHA512

ecc34f5cc2f8e79096a44ec235dccc2fb3f7e0e280553be51d5d2397d7c24ad2dc8ca899da6db6ea70e60fee280302fcf317efacc14603a277f642f79b0b79f1
SSDEEP

12288:3fTHMlxK/70jI/NaXNVh6Xj6Ftopum4UcOm4F296pKeXU1W9qIWogZJuNeGDHFyZ:P50k/NadgHY8QM4eWWkIxgZJw

Score

10^/10

remcos remotehost evasion rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

172.94.88.26:3033

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
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-LNYWHZ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	baea8f92a509da346b2785803537713d_JaffaCakes118.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	baea8f92a509da346b2785803537713d_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	baea8f92a509da346b2785803537713d_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	baea8f92a509da346b2785803537713d_JaffaCakes118.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	baea8f92a509da346b2785803537713d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	baea8f92a509da346b2785803537713d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description pid process target process

PID 2492 set thread context of 2168 2492 baea8f92a509da346b2785803537713d_JaffaCakes118.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2252 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2252 powershell.exe

description	pid	process	target process
PID 2492 set thread context of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe

pid	process
2252	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2252	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

baea8f92a509da346b2785803537713d_JaffaCakes118.exe

description	pid	process	target process
PID 2492 wrote to memory of 2252	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	powershell.exe
PID 2492 wrote to memory of 2252	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	powershell.exe
PID 2492 wrote to memory of 2252	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	powershell.exe
PID 2492 wrote to memory of 2252	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	powershell.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe
PID 2492 wrote to memory of 2168	2492	baea8f92a509da346b2785803537713d_JaffaCakes118.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\baea8f92a509da346b2785803537713d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\baea8f92a509da346b2785803537713d_JaffaCakes118.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2492

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\baea8f92a509da346b2785803537713d_JaffaCakes118.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2252

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
PID:2168

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2168-24-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-14-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-17-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-33-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-22-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-32-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-31-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-30-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-28-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-12-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-16-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-15-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-18-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2168-27-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-10-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2168-19-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2252-13-0x0000000002E70000-0x0000000002EB0000-memory.dmp

Filesize
256KB

Download
memory/2252-9-0x000000006ED00000-0x000000006F2AB000-memory.dmp

Filesize
5.7MB

Download
memory/2252-29-0x000000006ED00000-0x000000006F2AB000-memory.dmp

Filesize
5.7MB

Download
memory/2252-11-0x000000006ED00000-0x000000006F2AB000-memory.dmp

Filesize
5.7MB

Download
memory/2492-4-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-25-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-1-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-2-0x000000000A370000-0x000000000A3B0000-memory.dmp

Filesize
256KB

Download
memory/2492-0-0x0000000000160000-0x0000000000232000-memory.dmp

Filesize
840KB

Download
memory/2492-6-0x000000000A5B0000-0x000000000A64C000-memory.dmp

Filesize
624KB

Download
memory/2492-5-0x000000000A370000-0x000000000A3B0000-memory.dmp

Filesize
256KB

Download
memory/2492-3-0x0000000000520000-0x000000000052E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads