remcos | b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 03:53

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General

Target

b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
Size

1.1MB
MD5

bc74e2d086d7bef42c3604c1dafc3edb
SHA1

f3ba507bee10af7e9fd64b1c70fecb975e216073
SHA256

b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c
SHA512

0844fb41b40e29c363b7c62f39819569f405f6c038bc904afe1d2296ec08f3f339aef3f5e132b81be25819a3c90013b86af64e6737126175d8de88ec1cfd972f
SSDEEP

24576:V2xjyUVJKPWlHhWp19hnxRpPNX7HLQUqckP9LbuLCnYng:IUUVJVlHkpVnx3d7HLpEVLtnY

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Adobe.exe
copy_folder
Adobe
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Adobe-OTOIRK
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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
1268	Adobe.exe
3040	Adobe.exe

Loads dropped DLL 1 IoCs

pid	Process
2664	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 1268 set thread context of 3040	1268	Adobe.exe	34

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2828	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	30
PID 2872 wrote to memory of 2828	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	30
PID 2872 wrote to memory of 2828	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	30
PID 2872 wrote to memory of 2828	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	30
PID 2872 wrote to memory of 2956	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	31
PID 2872 wrote to memory of 2956	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	31
PID 2872 wrote to memory of 2956	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	31
PID 2872 wrote to memory of 2956	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	31
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2872 wrote to memory of 2664	2872	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	32
PID 2664 wrote to memory of 1268	2664	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	33
PID 2664 wrote to memory of 1268	2664	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	33
PID 2664 wrote to memory of 1268	2664	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	33
PID 2664 wrote to memory of 1268	2664	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	33
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34
PID 1268 wrote to memory of 3040	1268	Adobe.exe	34

C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
"C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
  "C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe"
  2⤵
  PID:2828
- C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
  "C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe"
  2⤵
  PID:2956
- C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
  "C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\ProgramData\Adobe\Adobe.exe
    "C:\ProgramData\Adobe\Adobe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1268
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\Adobe\Adobe.exe

Filesize
1.1MB

MD5
bc74e2d086d7bef42c3604c1dafc3edb

SHA1
f3ba507bee10af7e9fd64b1c70fecb975e216073

SHA256
b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c

SHA512
0844fb41b40e29c363b7c62f39819569f405f6c038bc904afe1d2296ec08f3f339aef3f5e132b81be25819a3c90013b86af64e6737126175d8de88ec1cfd972f

Download Submit
memory/1268-31-0x0000000005DD0000-0x0000000005E94000-memory.dmp

Filesize
784KB

Download
memory/1268-30-0x0000000000840000-0x0000000000958000-memory.dmp

Filesize
1.1MB

Download
memory/1268-29-0x0000000077BD0000-0x0000000077D79000-memory.dmp

Filesize
1.7MB

Download
memory/2664-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-4-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-5-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2872-0-0x0000000077BD0000-0x0000000077D79000-memory.dmp

Filesize
1.7MB

Download
memory/2872-3-0x0000000004E30000-0x0000000004EF4000-memory.dmp

Filesize
784KB

Download
memory/2872-2-0x00000000005F0000-0x0000000000608000-memory.dmp

Filesize
96KB

Download
memory/2872-1-0x0000000000130000-0x0000000000248000-memory.dmp

Filesize
1.1MB

Download
memory/3040-48-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3040-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3040-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download