remcos | e36863d167b7d73f751b18671802e1cf61c8720ee62b0745316963435c230bc7

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2023 10:08

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General

Target

8a1aefc.exe
Size

729KB
MD5

ab910af97f58303c92c89331b3573211
SHA1

84bd15105f9a60fdb63831e631a2ae7ea2ad6b12
SHA256

db693a6e2d410779dd0406e72d770fc10e682442658eec302b9254ff1f708727
SHA512

6469793738cb9f7cb8ec5b3529add7cf4e557a66559f9c3d6de3c8d72fa69204fa8f7d9b09c1e8f0fd7f0ccdb6dc243783737ff6f1d29136e5416604d8ea58a6
SSDEEP

12288:D4b4eMrbvbVqjEHsAGM6us7Fg5D+O0UZ0CDzc5IKBtxRvK/sp5:F+GsAxs7iDhF6CXcHI/s

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

iwehfojesnojene.con-ip.com:1883

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-WZV6ZW
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

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8a1aefc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FE01DB47E6914C4FAE1FE250319625D9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\8a1aefc.exe\""	8a1aefc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8a1aefc.exe

description pid process target process

PID 2592 set thread context of 1160 2592 8a1aefc.exe InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

8a1aefc.exe

description pid process

Token: SeDebugPrivilege 2592 8a1aefc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1160 InstallUtil.exe

description	pid	process	target process
PID 2592 set thread context of 1160	2592	8a1aefc.exe	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2592	8a1aefc.exe

pid	process
1160	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

8a1aefc.exe

description	pid	process	target process
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe
PID 2592 wrote to memory of 1160	2592	8a1aefc.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\8a1aefc.exe
"C:\Users\Admin\AppData\Local\Temp\8a1aefc.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1160

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
7f1b13f67efd421f73b2f62859dc3080

SHA1
5f50cf7919fff2c040a568890c860b44c3cf6b4c

SHA256
f5198597f9ad0fa75871c8b54e9a25a60f8a584332f710e63c8961ceb8313015

SHA512
11b31c0d8ec17563ef588496692b71b01f27b789cf2f1c0af4f1e4688e2cbc743c057547a9e67edafb88364e39922a363bd8c160590c697c09a289e52386eda3

Download Submit
memory/1160-135-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-137-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-138-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-139-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-142-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-143-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-148-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-149-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-151-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-152-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-153-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-155-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-156-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-159-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-160-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-162-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-163-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-165-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-166-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-167-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-169-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-170-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-171-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-174-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-175-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-176-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-178-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-179-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-180-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-182-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-183-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-185-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-186-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-187-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-189-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-190-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-191-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-193-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-194-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-196-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-197-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-199-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-200-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-201-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-203-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-204-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-205-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-207-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-208-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-210-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-211-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-212-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-214-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-215-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-216-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-218-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-219-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-221-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-222-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-224-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-225-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2592-133-0x0000021D7C9C0000-0x0000021D7CA7A000-memory.dmp

Filesize
744KB

Download
memory/2592-134-0x0000021D196A0000-0x0000021D196B0000-memory.dmp

Filesize
64KB

Download