remcos | 26ed62c404f08cb73c5f52cf8df52546a0c69bef2c50a577afa65a515da0cb22

General

Target

UsoOuMVYCv8QrxG.exe
Size

908KB
MD5

fce19affe7db15edd2b851ea84cd37ad
SHA1

143e9f5102833d028aca51437854e4a56f1dde11
SHA256

26ed62c404f08cb73c5f52cf8df52546a0c69bef2c50a577afa65a515da0cb22
SHA512

6046d7e2848132ee293a5b507dd76f84d506d4ed2e3673fb9a8bb5fa2d5645c6920de81f1c84f5fa3ee0b493b2c1941be7f37d650de27cec2b3b9113d820ab7d
SSDEEP

24576:pIK++j3zMXN4nH3o4Tps96bSKVZgbI0Nrs4kWAh:7jDkN4nH3/pw6bSKVebI0wT

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.64.152:2559

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-TS121V
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

description	pid	Process	procid_target
PID 4280 set thread context of 4400	4280	UsoOuMVYCv8QrxG.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 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	UsoOuMVYCv8QrxG.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UsoOuMVYCv8QrxG.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89
PID 4280 wrote to memory of 4400	4280	UsoOuMVYCv8QrxG.exe	89

C:\Users\Admin\AppData\Local\Temp\UsoOuMVYCv8QrxG.exe
"C:\Users\Admin\AppData\Local\Temp\UsoOuMVYCv8QrxG.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Users\Admin\AppData\Local\Temp\UsoOuMVYCv8QrxG.exe
  "C:\Users\Admin\AppData\Local\Temp\UsoOuMVYCv8QrxG.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4400

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

memory/4280-0-0x00000000753BE000-0x00000000753BF000-memory.dmp

Filesize
4KB

Download
memory/4280-1-0x0000000000D40000-0x0000000000E2A000-memory.dmp

Filesize
936KB

Download
memory/4280-2-0x0000000005DD0000-0x0000000006374000-memory.dmp

Filesize
5.6MB

Download
memory/4280-3-0x0000000005820000-0x00000000058B2000-memory.dmp

Filesize
584KB

Download
memory/4280-4-0x00000000753B0000-0x0000000075B60000-memory.dmp

Filesize
7.7MB

Download
memory/4280-5-0x00000000058D0000-0x00000000058DA000-memory.dmp

Filesize
40KB

Download
memory/4280-6-0x0000000005BF0000-0x0000000005C02000-memory.dmp

Filesize
72KB

Download
memory/4280-7-0x00000000753BE000-0x00000000753BF000-memory.dmp

Filesize
4KB

Download
memory/4280-8-0x00000000753B0000-0x0000000075B60000-memory.dmp

Filesize
7.7MB

Download
memory/4280-9-0x0000000007AB0000-0x0000000007B70000-memory.dmp

Filesize
768KB

Download
memory/4280-10-0x000000000A1E0000-0x000000000A27C000-memory.dmp

Filesize
624KB

Download
memory/4280-18-0x00000000753B0000-0x0000000075B60000-memory.dmp

Filesize
7.7MB

Download
memory/4400-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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