remcos | f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27-07-2024 02:10

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General

Target

f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe
Size

2.5MB
MD5

4fb3e6e7b8f9c12cd2d5e161f7b94760
SHA1

57bdad62c6ea7f1b905c900302f918d185811a94
SHA256

f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb
SHA512

f762ad1ccd537d06c1cf3538e433671f441f100b06d37ec34b3a3e76dfbfad40ac7ca50ee32297c54f628b0b89d75c2c5255166cc992f9bcff8f117f70aa179a
SSDEEP

49152:Og7eO7kjTav5AwVZGsY3uS+s1vm1lvt+vU0JSziMwqM:j7lmmUM7wq

Score

10^/10

remcos gasplant discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Gasplant

unifrieghtmovers.com:2558

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
chrome-E2SMAR
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe

description	pid	process	target process
PID 2344 set thread context of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe

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

Processes:

CasPol.exe

description ioc process

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

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe

description	pid	process	target process
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe
PID 2344 wrote to memory of 3592	2344	f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe
"C:\Users\Admin\AppData\Local\Temp\f76f9b85df2ba8850bec058164d2c752c8fd8ef0f1bcffd793e5f453d8a839bb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2344

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
- System Location Discovery: System Language Discovery
PID:3592

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

Replay Monitor

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Downloads

memory/3592-0-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-1-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-2-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-3-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-4-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-5-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download