remcos | 52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
04-07-2024 15:03

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General

Target

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
Size

6.3MB
MD5

7b9956e820cfd64a02a13af88b5237af
SHA1

ccb27bc5570fd160601d8009727296a12c579f66
SHA256

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960
SHA512

51e91c696d9cd25a1cf99cec15b412dffc1dc70046431a1254dc42d623a557a6438e42588debab3332c4afcfc57485d01b1beb740fcb24fbd9b78dc53e4a0bdc
SSDEEP

24576:sjLAQlWpXO17Q2G4rWgnfeZ79HK+6aAsYsxY90n+Y+2JnsWW3Ff/F5VWdXHb1h6P:MAQlWpXk02Ygp9E+2JnsWWZ

Score

10^/10

remcos 4runhost persistence rat upx

Malware Config

Extracted

Family

remcos

Botnet

4RunHost

juderule.africa:3395

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Host.exe
copy_folder
Host
delete_file
true
hide_file
true
hide_keylog_file
true
install_flag
false
install_path
%WinDir%\System32
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
vlc
keylog_path
%AppData%
mouse_option
false
mutex
Rmc-EEEPBA
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
UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral2/memory/1716-4903-0x0000000000400000-0x000000000048A000-memory.dmp upx
behavioral2/memory/1716-4913-0x0000000000400000-0x000000000048A000-memory.dmp upx

resource	yara_rule
behavioral2/memory/1716-4903-0x0000000000400000-0x000000000048A000-memory.dmp	upx
behavioral2/memory/1716-4913-0x0000000000400000-0x000000000048A000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hyfot = "C:\\Users\\Admin\\AppData\\Roaming\\Hyfot.exe"	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

description	pid	process	target process
PID 4276 set thread context of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

description	pid	process
Token: SeDebugPrivilege	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
Token: SeDebugPrivilege	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

pid process

1716 52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

pid	process
1716	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

description	pid	process	target process
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
PID 4276 wrote to memory of 1716	4276	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe	52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe

C:\Users\Admin\AppData\Local\Temp\52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
"C:\Users\Admin\AppData\Local\Temp\52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4276

C:\Users\Admin\AppData\Local\Temp\52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe
"C:\Users\Admin\AppData\Local\Temp\52a37eb90b8f3a1d164717415b58cf9bac1db1caa1f8aa57224089811cf50960.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1716

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1716-4903-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/1716-4913-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/4276-6-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-16-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-4-0x0000000006D50000-0x0000000006DE2000-memory.dmp

Filesize
584KB

Download
memory/4276-10-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-33-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-36-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-40-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-38-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-34-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-30-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/4276-26-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-64-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-24-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-23-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-18-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-14-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-12-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-8-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-5-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-28-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-3-0x0000000007300000-0x00000000078A4000-memory.dmp

Filesize
5.6MB

Download
memory/4276-20-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-68-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-66-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-62-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-60-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-58-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-54-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-52-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-50-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-48-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-46-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-44-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-56-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-42-0x0000000006B00000-0x0000000006D4C000-memory.dmp

Filesize
2.3MB

Download
memory/4276-4891-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-4892-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-4894-0x0000000005970000-0x00000000059BC000-memory.dmp

Filesize
304KB

Download
memory/4276-4893-0x00000000058E0000-0x000000000596E000-memory.dmp

Filesize
568KB

Download
memory/4276-4895-0x0000000006FD0000-0x0000000007024000-memory.dmp

Filesize
336KB

Download
memory/4276-4901-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4276-2-0x0000000006B00000-0x0000000006D52000-memory.dmp

Filesize
2.3MB

Download
memory/4276-1-0x0000000000810000-0x0000000000E64000-memory.dmp

Filesize
6.3MB

Download