remcos | cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb

General

Target

cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe
Size

217KB
MD5

487e5d1ae61f24bef39c819a001d9929
SHA1

7396b0bb0fffa5641a3a1a15b3e07134bd6203ec
SHA256

cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb
SHA512

e4eabbd10743d07317f5a339bffeff2f35760bdb12ab14d19648fa5e1da749cd436e1ae73625d525cabc0aa188b4e109a637638649c1429689294993bb4ddead
SSDEEP

3072:GHWiInUBb8btrDuJsJoW+OD5a0f7giGvkKD6aR0tyiKFkivCZSWC628p3p3outTs:GHWiInUe1f4rfvrDxKOpvUO3wdoS

Score

10^/10

remcos mranon discovery rat upx

Malware Config

Extracted

Family

remcos

Botnet

mranon

C2

eddy2024.ddns.net:2606

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
cortana32.exe
copy_folder
mscortana
delete_file
false
hide_file
true
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
data.dat
keylog_flag
false
keylog_folder
microsofte2dge
mouse_option
false
mutex
RmcSGDS@@GTHFbvg34òae"£$££$-IHC4MV
screenshot_crypt
true
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
63	2924	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4168 set thread context of 3684	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	88

UPX packed file 10 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4168-0-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-1-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-3-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-5-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-6-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/4168-4-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-8-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-11-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-7-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral2/memory/3684-14-0x0000000000400000-0x0000000000488000-memory.dmp	upx

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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1648	MicrosoftEdgeUpdate.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe
4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3684	iexplore.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 3544	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	87
PID 4168 wrote to memory of 3544	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	87
PID 4168 wrote to memory of 3544	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	87
PID 4168 wrote to memory of 3684	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	88
PID 4168 wrote to memory of 3684	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	88
PID 4168 wrote to memory of 3684	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	88
PID 4168 wrote to memory of 3684	4168	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	88

C:\Users\Admin\AppData\Local\Temp\cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe
"C:\Users\Admin\AppData\Local\Temp\cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4168
- \??\c:\program files (x86)\internet explorer\iexplore.exe
  "c:\program files (x86)\internet explorer\iexplore.exe"
  2⤵
  PID:3544
- \??\c:\program files (x86)\internet explorer\iexplore.exe
  "c:\program files (x86)\internet explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3684

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI5IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTEzOTI4NTcyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3684-1-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-3-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-5-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-6-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-8-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-11-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-7-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3684-14-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/4168-0-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/4168-4-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download

Analysis

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