remcos | b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c

Analysis

max time kernel
148s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe

Executes dropped EXE 2 IoCs

pid	Process
1204	Adobe.exe
3188	Adobe.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-1-5-21-2045521122-590294423-3465680274-1000\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
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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

description	pid	Process	procid_target
PID 3184 set thread context of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 1204 set thread context of 3188	1204	Adobe.exe	103

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	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 3184 wrote to memory of 4916	3184	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	98
PID 4916 wrote to memory of 1204	4916	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	99
PID 4916 wrote to memory of 1204	4916	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	99
PID 4916 wrote to memory of 1204	4916	b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe	99
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103
PID 1204 wrote to memory of 3188	1204	Adobe.exe	103

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 use of WriteProcessMemory
PID:3184
- C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe
  "C:\Users\Admin\AppData\Local\Temp\b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4916
- - 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:1204
  - - 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:3188

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

Query Registry

T1012

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
1.1MB

MD5
bc74e2d086d7bef42c3604c1dafc3edb

SHA1
f3ba507bee10af7e9fd64b1c70fecb975e216073

SHA256
b2a1e0e508be9c7546a8af45c72f2032f067ac036f03ec0c8309b368b195a65c

SHA512
0844fb41b40e29c363b7c62f39819569f405f6c038bc904afe1d2296ec08f3f339aef3f5e132b81be25819a3c90013b86af64e6737126175d8de88ec1cfd972f

Download Submit
memory/1204-39-0x0000000074210000-0x00000000749C0000-memory.dmp

Filesize
7.7MB

Download
memory/1204-32-0x0000000074210000-0x00000000749C0000-memory.dmp

Filesize
7.7MB

Download
memory/1204-31-0x000000007421E000-0x000000007421F000-memory.dmp

Filesize
4KB

Download
memory/1204-30-0x0000000074210000-0x00000000749C0000-memory.dmp

Filesize
7.7MB

Download
memory/1204-29-0x000000007421E000-0x000000007421F000-memory.dmp

Filesize
4KB

Download
memory/3184-9-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3184-2-0x00000000060A0000-0x0000000006644000-memory.dmp

Filesize
5.6MB

Download
memory/3184-8-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/3184-0-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/3184-10-0x0000000008AC0000-0x0000000008B84000-memory.dmp

Filesize
784KB

Download
memory/3184-1-0x0000000000F40000-0x0000000001058000-memory.dmp

Filesize
1.1MB

Download
memory/3184-7-0x0000000005E00000-0x0000000005E18000-memory.dmp

Filesize
96KB

Download
memory/3184-3-0x0000000005A30000-0x0000000005AC2000-memory.dmp

Filesize
584KB

Download
memory/3184-15-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3184-4-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3184-6-0x0000000005CD0000-0x0000000005D6C000-memory.dmp

Filesize
624KB

Download
memory/3184-5-0x0000000005B00000-0x0000000005B0A000-memory.dmp

Filesize
40KB

Download
memory/3188-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3188-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4916-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4916-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4916-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4916-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4916-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads