remcos | 6336884291bc716a27d86fc0b37e3a4a394901136b9b86260b904c79455fc476

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-08-2024 01:42

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General

Target

c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
Size

229KB
MD5

c428f6a6680065d3352230c8649932db
SHA1

abfa6797c065a5f15cca1b9e790ec8aedeb486e6
SHA256

6336884291bc716a27d86fc0b37e3a4a394901136b9b86260b904c79455fc476
SHA512

2dfc0b67c0587d2ea32c6cca585dbe618de1cffb01a33c26383990ab008d8df3640741131bb1f80358b992eb4c722fb2c496c173c9e48e239c940633113f0927
SSDEEP

6144:zK/dgq/1a+XshgVp9kkK2gC06PkcJttyjwn4i47VjuUCyb07/4rxtL/d:2gq/QusUzKDQkcDAjw4i4RqUvo7/6T

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

RemoteHost

tool404vip.ddns.net:6454

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-949BLB
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
wikipedia;solitaire;

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Zl18O3Nm.url	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Zl18O3Nm.url	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5052 set thread context of 1404	5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe	94

System Location Discovery: System Language Discovery 1 TTPs 1 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	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

pid	Process
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1404	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 1404	5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe	94
PID 5052 wrote to memory of 1404	5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe	94
PID 5052 wrote to memory of 1404	5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe	94
PID 5052 wrote to memory of 1404	5052	c428f6a6680065d3352230c8649932db_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c428f6a6680065d3352230c8649932db_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Users\Admin\AppData\Local\Temp\c428f6a6680065d3352230c8649932db_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c428f6a6680065d3352230c8649932db_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
ba4c51c4fbca2a6b72401915194deed0

SHA1
d14e9fc35b27f0f3c11bd943e79ce9e2365991e1

SHA256
cd37c06b2b6a3c2694a480d723c1074b1b7200fccac5ebb19bad480caeffd3bc

SHA512
81ab8bc1d4acde4dd679a986bd7e8b2f257d5e49189829369c67fd74811340d9446e6c30e0b8a27ab8547c512c98cdbf1953bca92657a076ecffde7776c1609b

Download Submit
memory/1404-12-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1404-21-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1404-20-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1404-18-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1404-16-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1404-14-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/5052-4-0x0000000005750000-0x000000000576E000-memory.dmp

Filesize
120KB

Download
memory/5052-8-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/5052-7-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/5052-6-0x0000000005E50000-0x00000000063F4000-memory.dmp

Filesize
5.6MB

Download
memory/5052-15-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/5052-5-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/5052-0-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/5052-3-0x0000000003190000-0x00000000031B8000-memory.dmp

Filesize
160KB

Download
memory/5052-2-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/5052-1-0x0000000000DB0000-0x0000000000DEE000-memory.dmp

Filesize
248KB

Download