remcos | 93ea6ac422f90a1031160360409fea1c16c533be06cc2b6e71e748ee3d20683a

General

Target

ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
Size

945KB
MD5

a21780a599c30bcf11b6152ff9d16be2
SHA1

953f98a9904c76b275809bad78d16cf550f2483d
SHA256

93ea6ac422f90a1031160360409fea1c16c533be06cc2b6e71e748ee3d20683a
SHA512

8e1f69a23b508c2cc4c61b001b91645a91211c89e11d35237cc78890c68f96362151a7db7da85045d9a639bd717110e965c92eaaa546b8f9702620e6022d8d59
SSDEEP

24576:gjb4DeayiRyXCTovSWHH00vbqc+Su9NvyqWPCx:gf5+k1n00D4ScN69PCx

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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_Nov-3XE9WN
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

Processes:

ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe

Executes dropped EXE 2 IoCs

Processes:

Adobe.exeAdobe.exe

pid	Process
2380	Adobe.exe
1160	Adobe.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Adobe.exeISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe_Nov-3XE9WN = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exeAdobe.exe

description	pid	Process	procid_target
PID 4396 set thread context of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 2380 set thread context of 1160	2380	Adobe.exe	100

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 3 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:

ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exeISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exeAdobe.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exeISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exeAdobe.exe

description	pid	Process	procid_target
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4396 wrote to memory of 4076	4396	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	91
PID 4076 wrote to memory of 2380	4076	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	92
PID 4076 wrote to memory of 2380	4076	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	92
PID 4076 wrote to memory of 2380	4076	ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe	92
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100
PID 2380 wrote to memory of 1160	2380	Adobe.exe	100

C:\Users\Admin\AppData\Local\Temp\ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
"C:\Users\Admin\AppData\Local\Temp\ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Local\Temp\ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\ISFTWN24110458-InvoicePackingListPOPOUS120000241POUS120000771.scr.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4076
- - 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:2380
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:1160

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

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\Adobe\Adobe.exe

Filesize
945KB

MD5
a21780a599c30bcf11b6152ff9d16be2

SHA1
953f98a9904c76b275809bad78d16cf550f2483d

SHA256
93ea6ac422f90a1031160360409fea1c16c533be06cc2b6e71e748ee3d20683a

SHA512
8e1f69a23b508c2cc4c61b001b91645a91211c89e11d35237cc78890c68f96362151a7db7da85045d9a639bd717110e965c92eaaa546b8f9702620e6022d8d59

Download Submit
memory/1160-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1160-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2380-30-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/2380-28-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2380-40-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/2380-33-0x00000000063E0000-0x00000000064A2000-memory.dmp

Filesize
776KB

Download
memory/2380-31-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2380-32-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4076-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4396-10-0x00000000055F0000-0x00000000056B2000-memory.dmp

Filesize
776KB

Download
memory/4396-8-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/4396-0-0x0000000074D5E000-0x0000000074D5F000-memory.dmp

Filesize
4KB

Download
memory/4396-4-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4396-1-0x0000000000530000-0x0000000000622000-memory.dmp

Filesize
968KB

Download
memory/4396-17-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4396-2-0x00000000056B0000-0x0000000005C54000-memory.dmp

Filesize
5.6MB

Download
memory/4396-9-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4396-7-0x0000000005320000-0x0000000005338000-memory.dmp

Filesize
96KB

Download
memory/4396-6-0x00000000053A0000-0x000000000543C000-memory.dmp

Filesize
624KB

Download
memory/4396-5-0x0000000005020000-0x000000000502A000-memory.dmp

Filesize
40KB

Download
memory/4396-3-0x0000000005050000-0x00000000050E2000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads