remcos | c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
26-11-2024 19:52

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General

Target

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
Size

951KB
MD5

cdb36d7e12b4b09cc17a4acb15abcb32
SHA1

22bac6bed40f58042c26c64f27fa6d1ba62bdf8b
SHA256

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0
SHA512

2cdb43718de629e69a93e1ac138747d2550bf2a1a56bc265c19837171067d843a4aed83b6c95d04488b15cbd2a80b07c9f4412e5b787507575e09d333912b909
SSDEEP

12288:/CfiaKJpEBPqhqZELFu0Hy52/aSMlon8NyPtGKN5VV2WJ9oaTXJmBupazmbME:/YitEsFS5+aSmoeyVG+V90OkswzSp

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

Processes:

Adobe.exeAdobe.exe

pid	Process
3044	Adobe.exe
1968	Adobe.exe

Loads dropped DLL 1 IoCs

Processes:

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe

pid	Process
2844	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exeAdobe.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\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

Suspicious use of SetThreadContext 2 IoCs

Processes:

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exeAdobe.exe

description	pid	Process	procid_target
PID 1420 set thread context of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 3044 set thread context of 1968	3044	Adobe.exe	33

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

Processes:

Adobe.exeAdobe.exec51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exec51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exeAdobe.exe

pid	Process
1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
3044	Adobe.exe
3044	Adobe.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exeAdobe.exe

description	pid	Process
Token: SeDebugPrivilege	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
Token: SeDebugPrivilege	3044	Adobe.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exec51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exeAdobe.exe

description	pid	Process	procid_target
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 1420 wrote to memory of 2844	1420	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	30
PID 2844 wrote to memory of 3044	2844	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	31
PID 2844 wrote to memory of 3044	2844	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	31
PID 2844 wrote to memory of 3044	2844	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	31
PID 2844 wrote to memory of 3044	2844	c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe	31
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33
PID 3044 wrote to memory of 1968	3044	Adobe.exe	33

C:\Users\Admin\AppData\Local\Temp\c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
"C:\Users\Admin\AppData\Local\Temp\c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Users\Admin\AppData\Local\Temp\c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe
  "C:\Users\Admin\AppData\Local\Temp\c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2844
- - 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 behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3044
  - - 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:1968

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

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Downloads

C:\ProgramData\Adobe\Adobe.exe

Filesize
951KB

MD5
cdb36d7e12b4b09cc17a4acb15abcb32

SHA1
22bac6bed40f58042c26c64f27fa6d1ba62bdf8b

SHA256
c51201337af75df4850b5392117e54eedfa2f1ac133e891947ece8102cdda0d0

SHA512
2cdb43718de629e69a93e1ac138747d2550bf2a1a56bc265c19837171067d843a4aed83b6c95d04488b15cbd2a80b07c9f4412e5b787507575e09d333912b909

Download Submit
memory/1420-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/1420-1-0x0000000000E80000-0x0000000000F74000-memory.dmp

Filesize
976KB

Download
memory/1420-2-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/1420-3-0x00000000005D0000-0x00000000005EE000-memory.dmp

Filesize
120KB

Download
memory/1420-4-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/1420-5-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/1420-6-0x000000000A620000-0x000000000A6E0000-memory.dmp

Filesize
768KB

Download
memory/1420-22-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1968-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1968-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2844-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3044-31-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/3044-30-0x0000000000F30000-0x0000000001024000-memory.dmp

Filesize
976KB

Download
memory/3044-32-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download