remcos | 34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f

General

Target

34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe
Size

1.2MB
MD5

996a89239876fdbb1cf03d17d092f9cb
SHA1

f068e983f491a47ed418c52ac57e453a043bd9d6
SHA256

34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f
SHA512

dfb8a52574e5d0d5f553334906dd0df5510662bdfe093b85042a66145c33401244f2cb28e51c2231e11fffe49852307751c135aefe55d4330b86ede3894f4a19
SSDEEP

24576:S6inYmOMJ+FU3WZvTS8ms6xAPe635AZx/2l86N:SWmtA63WZ3v6S2635AZMhN

Score

10^/10

remcos host discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

oyo.work.gd:3142

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
pdf
mouse_option
false
mutex
jkm-I9KENP
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
ios
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31

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	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2328	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2084 wrote to memory of 2328	2084	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31

C:\Users\Admin\AppData\Local\Temp\34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe
"C:\Users\Admin\AppData\Local\Temp\34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe
  "C:\Users\Admin\AppData\Local\Temp\34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2328

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\pdf\logs.dat

Filesize
144B

MD5
4cb6337c4a4e7676c45b1a331327f191

SHA1
37da2ca0e5a202dd1768d50bd0bba0ebd4d0ed57

SHA256
d3297b55a579b14412d8fb776c0b1b22b39ba0094c6f2b8d583617c35304cfdc

SHA512
997581c65cf2f989a1c70aa207a72cf2df15a2c465cb82455290a750a4ebfbf3f0d969570228c09c7afd382ac49bea2ed12ed3cee7ff1d5aedb42baaf172d58d

Download Submit
memory/2084-0-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/2084-1-0x00000000010F0000-0x000000000122C000-memory.dmp

Filesize
1.2MB

Download
memory/2084-2-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/2084-3-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-4-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/2084-5-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2084-6-0x00000000053A0000-0x0000000005460000-memory.dmp

Filesize
768KB

Download
memory/2084-28-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2328-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2328-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2328-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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