remcos | 0a55e15d9c193793f0fb23f460f740b87dffaf13585e8f5059477530ed082440

General

Target
24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe
Size 92KB
Sample240511-wdh79aaa2t
SHA256 0a55e15d9c193793f0fb23f460f740b87dffaf13585e8f5059477530ed082440
MD5 24102994a861982d9ae27bb210dcacd0
SHA1 7474bb3dab6f5bff06cbe6df8f5338afebff8ec4
SHA512 f3639cb94108761dfaeaf1306621d3f582f1c0c8588429830ef94f4b98d4593cae7a2cfcb1e9f0f0cfd356662ec07cf88e2c56092a2759394fcd8fb7f97b09f5
SSDEEP 1536:6hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESnNTh91e63WfmZr:0hzYTGWVvJ8f2v1TbPzuMsIFSnNTh3Lz
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos host evasion persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

10.0.2.15:2402

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
U32c.exe
copy_folder
MicrosoftCryptographie
delete_file
true
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%UserProfile%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
true
mutex
remcos_idwxrxyimd
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
Windows Defender
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	U32c.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe

Executes dropped EXE 1 IoCs

pid	Process
2312	U32c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "\"C:\\Users\\Admin\\MicrosoftCryptographie\\U32c.exe\""	24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "\"C:\\Users\\Admin\\MicrosoftCryptographie\\U32c.exe\""	U32c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1668	2960	WerFault.exe	89

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2312 set thread context of 2960	2312	U32c.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4284	PING.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2700	2772	24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe	82
PID 2772 wrote to memory of 2700	2772	24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe	82
PID 2772 wrote to memory of 2700	2772	24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe	82
PID 2700 wrote to memory of 4284	2700	cmd.exe	84
PID 2700 wrote to memory of 4284	2700	cmd.exe	84
PID 2700 wrote to memory of 4284	2700	cmd.exe	84
PID 2700 wrote to memory of 2312	2700	cmd.exe	88
PID 2700 wrote to memory of 2312	2700	cmd.exe	88
PID 2700 wrote to memory of 2312	2700	cmd.exe	88
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89
PID 2312 wrote to memory of 2960	2312	U32c.exe	89

C:\Users\Admin\AppData\Local\Temp\24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\24102994a861982d9ae27bb210dcacd0_NeikiAnalytics.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Windows\SysWOW64\PING.EXE
    PING 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:4284
- - C:\Users\Admin\MicrosoftCryptographie\U32c.exe
    "C:\Users\Admin\MicrosoftCryptographie\U32c.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2312
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      PID:2960
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 240
        5⤵
        Program crash
        
        PID:1668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2960 -ip 2960
1⤵
PID:3412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

install.bat

Path C:\Users\Admin\AppData\Local\Temp\install.bat
Size 190B
SHA256 c45268c5a65fcc74bc3b6908dd6ca9a12ebf385031cd3b5bfe3a614abe58d338
MD5 decb99d3423d4e0219efa3acb63ad19d
SHA1 20ea2289dd19f4f41fadbd2ed33945b320b79fb9
SHA512 822fb284c0682d4f0dd0aad179cc6de04da68c6b0a04c60ddf26a7d4d6bcac92d888698b9a1b875c4e072e23e092a991f8ec45124d0d39c643562f6007690df6
MD5 SHA1 SHA512

Submit Download

U32c.exe

Path C:\Users\Admin\MicrosoftCryptographie\U32c.exe
Size 92KB
SHA256 0a55e15d9c193793f0fb23f460f740b87dffaf13585e8f5059477530ed082440
MD5 24102994a861982d9ae27bb210dcacd0
SHA1 7474bb3dab6f5bff06cbe6df8f5338afebff8ec4
SHA512 f3639cb94108761dfaeaf1306621d3f582f1c0c8588429830ef94f4b98d4593cae7a2cfcb1e9f0f0cfd356662ec07cf88e2c56092a2759394fcd8fb7f97b09f5
SSDEEP 1536:6hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESnNTh91e63WfmZr:0hzYTGWVvJ8f2v1TbPzuMsIFSnNTh3Lz
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2312-10-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/2772-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/2960-11-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads