remcos | 5b76e1cf59147f6b4c390dae52a7c3564940fdd3d169a25336a616057c7e5711

General

Target

DHLDELIVERYNOTIFICATIONPDF.exe
Size

524KB
MD5

669d64c3272ef39b87b0df6cf2972992
SHA1

36d60c17ff65404b60b32ebe7aa368e1824071a0
SHA256

667ac06930c81f8234a56babda66be893bc2b8b865aa1db910fa5b85429ff90d
SHA512

61901446c9544eab70f44150d37dfca1106c22335763fc6846b9332bad39ee7700c106e250f866e55055444db72eb0905d0cfb336baee6a6d5da3e7c99d8f6c7
SSDEEP

6144:+WMFb/Pv2zstE1gT91qqUfk9TNRs0LT5H7qwpz/LYzlrvLqCNLfSRHa:+BPv2zv1gZ1qDfk9h20LTl+EYJHSRHa

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

2.6.0 Pro

Botnet

RemoteHost

C2

79.134.225.12:60256

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
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
gate
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-IIRGSS
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3144 set thread context of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3144	DHLDELIVERYNOTIFICATIONPDF.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3144	DHLDELIVERYNOTIFICATIONPDF.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1268	RegSvcs.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98
PID 3144 wrote to memory of 1268	3144	DHLDELIVERYNOTIFICATIONPDF.exe	98

C:\Users\Admin\AppData\Local\Temp\DHLDELIVERYNOTIFICATIONPDF.exe
"C:\Users\Admin\AppData\Local\Temp\DHLDELIVERYNOTIFICATIONPDF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3144
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1268

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:\Users\Admin\AppData\Roaming\gate\logs.dat

Filesize
74B

MD5
31b9a6f02aa8f69130bfd4478a824f84

SHA1
962284cc13334bb5bbc2f083815e928afb98893e

SHA256
03152abd1e3bc64362103100263e8a9bde6bb3242cd69a1dc3e8b492cba36f3c

SHA512
e13b21aad22881e7103f60b4399c646e638bdb468d70663f3f9df868f52c3dc6712c08142a28b7c4905c3808320bd6d840d2ede362ad4e5b9b56ac2748c8f23d

Download Submit
memory/1268-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1268-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1268-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1268-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1268-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3144-5-0x00000000058B0000-0x00000000058BA000-memory.dmp

Filesize
40KB

Download
memory/3144-13-0x0000000006820000-0x000000000684A000-memory.dmp

Filesize
168KB

Download
memory/3144-8-0x0000000005B10000-0x0000000005B28000-memory.dmp

Filesize
96KB

Download
memory/3144-9-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/3144-10-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/3144-11-0x00000000067B0000-0x00000000067F2000-memory.dmp

Filesize
264KB

Download
memory/3144-12-0x0000000006810000-0x0000000006816000-memory.dmp

Filesize
24KB

Download
memory/3144-7-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/3144-6-0x0000000005B30000-0x0000000005B86000-memory.dmp

Filesize
344KB

Download
memory/3144-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/3144-4-0x00000000058F0000-0x0000000005982000-memory.dmp

Filesize
584KB

Download
memory/3144-3-0x0000000005E00000-0x00000000063A4000-memory.dmp

Filesize
5.6MB

Download
memory/3144-23-0x0000000074C00000-0x00000000753B0000-memory.dmp

Filesize
7.7MB

Download
memory/3144-2-0x00000000057B0000-0x000000000584C000-memory.dmp

Filesize
624KB

Download
memory/3144-1-0x0000000000EC0000-0x0000000000F4A000-memory.dmp

Filesize
552KB

Download

Analysis

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