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 2644 set thread context of 2772	2644	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 behavior: EnumeratesProcesses 2 IoCs

pid	Process
2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe
2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2772	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2756	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	30
PID 2644 wrote to memory of 2756	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	30
PID 2644 wrote to memory of 2756	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	30
PID 2644 wrote to memory of 2756	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	30
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe	31
PID 2644 wrote to memory of 2772	2644	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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Local\Temp\34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe
  "C:\Users\Admin\AppData\Local\Temp\34956fb0874a7093f7e246b475a97acc90e312c3c762a09f69d9933b0837f59f.exe"
  2⤵
  PID:2756
- 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:2772

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

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Downloads

C:\ProgramData\pdf\logs.dat

Filesize
144B

MD5
cd4747572e840d1d2aca74fb39147408

SHA1
a03d4871f5bd738634685f0cb8b08b092531c581

SHA256
af1783bf28cdb989393181e4b5ae30f47d02f1799eb40fc082be52ead1a9ec65

SHA512
bb97578e7655dd6a5321be7a2de4714559caa2801b9d9787336f6057ad52d2cc5f979e427b928497fe0b560a0633dcdb1243526d7a09d06c536f4482e19466fd

Download Submit
memory/2644-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2644-1-0x0000000000160000-0x000000000029C000-memory.dmp

Filesize
1.2MB

Download
memory/2644-3-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-2-0x0000000000680000-0x0000000000692000-memory.dmp

Filesize
72KB

Download
memory/2644-4-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2644-5-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-6-0x0000000005290000-0x0000000005350000-memory.dmp

Filesize
768KB

Download
memory/2644-33-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2772-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2772-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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