remcos | b5369227471d02b14e37ef636ff1a354582554f99fc45c35c58b4539030ba344

General

Target

1738906328f753d1f5c5b88cf00ec9b28c6b54d74c063cdcebe88f8435482d6bac975e4444799.dat-decoded.exe
Size

233KB
MD5

c3b96e6ec46567ea82cd8f71c388edef
SHA1

0163332ab3a2017b94cab909285e3e0d7286007b
SHA256

b5369227471d02b14e37ef636ff1a354582554f99fc45c35c58b4539030ba344
SHA512

020812ce1892e1f64a855036877b1441afb4a278cc3baa77db44dcfaa9f66dcbeec5732c7695000b53cef7386436ecde21673502b5b23ad942c632d32b5fc7ea
SSDEEP

3072:DJ7heiNpO/ONT/b5d2+hiBIwkDobE2NzM1+XGTIvSI7XGTm/UghciO7fog11III:DJZb7wytBs2TIvFKi8gh1Afo

Score

10^/10

remcos remotehost discovery rat upx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

uptimebot.kozow.com:1433

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
true
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
os
mouse_option
false
mutex
Rmc-RYFDJO
screenshot_crypt
false
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
Remcos family
remcos

UPX packed file 16 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2668-0-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-5-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-6-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-9-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-12-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-15-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-18-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-21-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-23-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-27-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-30-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-33-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-36-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-39-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-42-0x0000000000400000-0x0000000000488000-memory.dmp	upx
behavioral1/memory/2668-45-0x0000000000400000-0x0000000000488000-memory.dmp	upx

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	1738906328f753d1f5c5b88cf00ec9b28c6b54d74c063cdcebe88f8435482d6bac975e4444799.dat-decoded.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2668	1738906328f753d1f5c5b88cf00ec9b28c6b54d74c063cdcebe88f8435482d6bac975e4444799.dat-decoded.exe

C:\Users\Admin\AppData\Local\Temp\1738906328f753d1f5c5b88cf00ec9b28c6b54d74c063cdcebe88f8435482d6bac975e4444799.dat-decoded.exe
"C:\Users\Admin\AppData\Local\Temp\1738906328f753d1f5c5b88cf00ec9b28c6b54d74c063cdcebe88f8435482d6bac975e4444799.dat-decoded.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\os\logs.dat

Filesize
184B

MD5
dd3f86d48024169eb474ee61cabe08d4

SHA1
c6519372134837b15a3f46198722f72c477a2560

SHA256
ae8725926fe3f74b13762b7b104c77ee5fe6af977bfb9f40dc5d3d5acc3f1c65

SHA512
e1a3f99df277c5c73f738a97ead09651e969b0a35ea7acfdd99b9649c2bd05d3793679f86ad8f28c26be82ed632f8c5e6a6389e3ee1bcf2ad63a6fafda6947bb

Download Submit
memory/2668-21-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-18-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-5-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-9-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-23-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-15-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-6-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-0-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-12-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-27-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-30-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-33-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-36-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-39-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-42-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/2668-45-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download

Analysis

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