remcos | 8a8bb4a312f4856759a282af9997771b38b1505178b398c7984a488e3279d0c2

General

Target

GBGBGBGBG.exe
Size

1.8MB
MD5

e627a94203d6d2b9aa4eb69f1815248e
SHA1

9e69ea413e16b67caa8c8b6b2adf51d097c8e264
SHA256

8a8bb4a312f4856759a282af9997771b38b1505178b398c7984a488e3279d0c2
SHA512

03e3db75d337758d1aef6c0c38cd2bedc835a53c77323e1e9103de93f76f9549ddcf940ad63b2a7d9dacac3c1959a478924a056eb2cb9042a97f3706b09b0126
SSDEEP

24576:OtY2JMzBEU2ZclAod25zgDrbDMOn8IhSV+lUDHDrGviQGnMGZJFIMLq6c4jM1l9P:OtS48DX8VWCI/FcLFRjcBrf8

Score

10^/10

remcos ogbmanny persistence rat

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

OGBMANNY

C2

91.231.84.41:52651

127.0.0.1:52651

10.5.175.21:52651

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-B15393
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

GBGBGBGBG.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vvgec = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jcuonzr\\Vvgec.exe\""	GBGBGBGBG.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

GBGBGBGBG.exe

description pid process target process

PID 1808 set thread context of 544 1808 GBGBGBGBG.exe GBGBGBGBG.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1528 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeGBGBGBGBG.exe

description pid process

Token: SeDebugPrivilege 1528 powershell.exe
Token: SeDebugPrivilege 1808 GBGBGBGBG.exe

description	pid	process	target process
PID 1808 set thread context of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe

pid	process
1528	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1528	powershell.exe
Token: SeDebugPrivilege	1808	GBGBGBGBG.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

GBGBGBGBG.exe

description	pid	process	target process
PID 1808 wrote to memory of 1528	1808	GBGBGBGBG.exe	powershell.exe
PID 1808 wrote to memory of 1528	1808	GBGBGBGBG.exe	powershell.exe
PID 1808 wrote to memory of 1528	1808	GBGBGBGBG.exe	powershell.exe
PID 1808 wrote to memory of 1528	1808	GBGBGBGBG.exe	powershell.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe
PID 1808 wrote to memory of 544	1808	GBGBGBGBG.exe	GBGBGBGBG.exe

C:\Users\Admin\AppData\Local\Temp\GBGBGBGBG.exe
"C:\Users\Admin\AppData\Local\Temp\GBGBGBGBG.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1528

C:\Users\Admin\AppData\Local\Temp\GBGBGBGBG.exe
C:\Users\Admin\AppData\Local\Temp\GBGBGBGBG.exe
2⤵
PID:544

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/544-73-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-78-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-74-0x0000000000413FA4-mapping.dmp

Download
memory/544-71-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-69-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-65-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-79-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-77-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/544-67-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1528-62-0x000000006EA60000-0x000000006F00B000-memory.dmp

Filesize
5.7MB

Download
memory/1528-61-0x000000006EA60000-0x000000006F00B000-memory.dmp

Filesize
5.7MB

Download
memory/1528-60-0x000000006EA60000-0x000000006F00B000-memory.dmp

Filesize
5.7MB

Download
memory/1528-58-0x0000000000000000-mapping.dmp

Download
memory/1808-55-0x0000000075211000-0x0000000075213000-memory.dmp

Filesize
8KB

Download
memory/1808-54-0x0000000000840000-0x0000000000A20000-memory.dmp

Filesize
1.9MB

Download
memory/1808-57-0x00000000044A0000-0x0000000004532000-memory.dmp

Filesize
584KB

Download
memory/1808-56-0x0000000004AD0000-0x0000000004C34000-memory.dmp

Filesize
1.4MB

Download
memory/1808-63-0x0000000004F70000-0x0000000004FBC000-memory.dmp

Filesize
304KB

Download

Analysis

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