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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1980 set thread context of 1936	1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	31

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1980-0-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-3-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-7-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-12-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-13-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-8-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1980-6-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-5-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/1936-16-0x0000000000400000-0x0000000000488000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 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	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1936	iexplore.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1936	1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	31
PID 1980 wrote to memory of 1936	1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	31
PID 1980 wrote to memory of 1936	1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	31
PID 1980 wrote to memory of 1936	1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	31
PID 1980 wrote to memory of 1936	1980	cc4ccb3d451d2339ffc3c1ffbfd955e40d4903c2c6e82661ea0ec9c693272abb.exe	31

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:1980
- \??\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:1936

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1936-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1936-3-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1936-7-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1936-12-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1936-13-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1936-8-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1936-5-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1936-16-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1980-0-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1980-6-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download

Analysis

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