remcos | db404ec3f27d0e9173f55db560ff6777560226f3a52bfde901897f637a24d89b

General

Target

l2StCMee3nFFvI3.exe
Size

1.1MB
MD5

a290d7cec1d2cd6544fa0e315d5e518e
SHA1

e122b7be973e6b69862ff1cca3f4870655e97e02
SHA256

db404ec3f27d0e9173f55db560ff6777560226f3a52bfde901897f637a24d89b
SHA512

583696f95ef1a827b5e540bf12343912c00cd2fae6135aace6800a601878644bf419303bac0a45d796e3d4655708f4d273637ff8492704a9866d75ce88c17d6e
SSDEEP

24576:/q0qwHvmNKfrhP6W6qh+AasOkie2QBudJ9WamSL:/qqmYfrQWdh3CkvXYdJ9o

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.220.30:8080

Attributes

audio_folder
MicRecords
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-SF7E52
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4604 set thread context of 4548	4604	l2StCMee3nFFvI3.exe	101

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	l2StCMee3nFFvI3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	l2StCMee3nFFvI3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4604	l2StCMee3nFFvI3.exe
4604	l2StCMee3nFFvI3.exe
4604	l2StCMee3nFFvI3.exe
4604	l2StCMee3nFFvI3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4604	l2StCMee3nFFvI3.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 1128	4604	l2StCMee3nFFvI3.exe	99
PID 4604 wrote to memory of 1128	4604	l2StCMee3nFFvI3.exe	99
PID 4604 wrote to memory of 1128	4604	l2StCMee3nFFvI3.exe	99
PID 4604 wrote to memory of 924	4604	l2StCMee3nFFvI3.exe	100
PID 4604 wrote to memory of 924	4604	l2StCMee3nFFvI3.exe	100
PID 4604 wrote to memory of 924	4604	l2StCMee3nFFvI3.exe	100
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101
PID 4604 wrote to memory of 4548	4604	l2StCMee3nFFvI3.exe	101

C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe
"C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4604
- C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe
  "C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe"
  2⤵
  PID:1128
- C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe
  "C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe"
  2⤵
  PID:924
- C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe
  "C:\Users\Admin\AppData\Local\Temp\l2StCMee3nFFvI3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4548

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/4548-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4548-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4604-8-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4604-1-0x0000000000B10000-0x0000000000C2C000-memory.dmp

Filesize
1.1MB

Download
memory/4604-10-0x000000000AFD0000-0x000000000B090000-memory.dmp

Filesize
768KB

Download
memory/4604-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/4604-18-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4604-9-0x0000000006910000-0x000000000692C000-memory.dmp

Filesize
112KB

Download
memory/4604-7-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/4604-4-0x00000000057C0000-0x00000000057CA000-memory.dmp

Filesize
40KB

Download
memory/4604-6-0x0000000005900000-0x000000000599C000-memory.dmp

Filesize
624KB

Download
memory/4604-5-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4604-3-0x0000000005610000-0x00000000056A2000-memory.dmp

Filesize
584KB

Download
memory/4604-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download

Analysis

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