remcos | b1801e102f5cb5dce9e2628bd80932a39bd57ff68d32c824ad4443f7bd00ea2d

Analysis

max time kernel
152s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16-05-2024 15:16

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General

Target

DHL AWB 890089300.exe
Size

1.0MB
MD5

c0a2a67a65ca2de4bafa5b8d5aee0527
SHA1

db59b429d52a174f285bca3e648da12ce14e8eaa
SHA256

b1801e102f5cb5dce9e2628bd80932a39bd57ff68d32c824ad4443f7bd00ea2d
SHA512

ad7d436b3bef3aaa20dfb0cb8c904cf5fa0702360900bb9d0c747c49ab3d36c6bcb56d9daa39218b4f2326421f5ee1eb015daa4a92755cba5d6f9ee94492559b
SSDEEP

24576:ZvlIJSNI0eOcZdrQrJF3kkR82WkaiX3BZW9ngnFCDAcNep:pleaIi4QrWka2jXn/Z

Score

10^/10

remcos 76364 execution rat

Malware Config

Extracted

Family

remcos

Botnet

76364

103.150.8.12:5689

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-FF0K7G
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

1648 powershell.exe

pid	process
1648	powershell.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

Processes:

DHL AWB 890089300.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	DHL AWB 890089300.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL AWB 890089300.exe

description pid process target process

PID 1804 set thread context of 1372 1804 DHL AWB 890089300.exe DHL AWB 890089300.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4316 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1648 powershell.exe
1648 powershell.exe
1648 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1648 powershell.exe

description	pid	process	target process
PID 1804 set thread context of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe

pid	process
4316	schtasks.exe

pid	process
1648	powershell.exe
1648	powershell.exe
1648	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1648	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

DHL AWB 890089300.exe

description	pid	process	target process
PID 1804 wrote to memory of 1648	1804	DHL AWB 890089300.exe	powershell.exe
PID 1804 wrote to memory of 1648	1804	DHL AWB 890089300.exe	powershell.exe
PID 1804 wrote to memory of 1648	1804	DHL AWB 890089300.exe	powershell.exe
PID 1804 wrote to memory of 4316	1804	DHL AWB 890089300.exe	schtasks.exe
PID 1804 wrote to memory of 4316	1804	DHL AWB 890089300.exe	schtasks.exe
PID 1804 wrote to memory of 4316	1804	DHL AWB 890089300.exe	schtasks.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe
PID 1804 wrote to memory of 1372	1804	DHL AWB 890089300.exe	DHL AWB 890089300.exe

C:\Users\Admin\AppData\Local\Temp\DHL AWB 890089300.exe
"C:\Users\Admin\AppData\Local\Temp\DHL AWB 890089300.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eulqnm.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1648
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eulqnm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D40.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4316
- C:\Users\Admin\AppData\Local\Temp\DHL AWB 890089300.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL AWB 890089300.exe"
  2⤵
  PID:1372

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3il0d54w.l30.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4D40.tmp

Filesize
1KB

MD5
9c8634dbe861d6f9edfa3cf7e5dce364

SHA1
2210f0f754e57cccae160e74816ff94666821be3

SHA256
4f4a37cd18e4b8ad3fd446632fbaab3edf73873fa397fea256eef64053100fec

SHA512
c24ab47139f94ec9b523dba4006daa2da30c8e0775c1056468abfc1e09d59d4d16fdfe192da22ca3b818bae7fed940faad00e086d9efc7090f6f74ef0998517f

Download Submit
memory/1372-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1372-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1648-19-0x0000000005270000-0x0000000005898000-memory.dmp

Filesize
6.2MB

Download
memory/1648-61-0x0000000007AF0000-0x000000000816A000-memory.dmp

Filesize
6.5MB

Download
memory/1648-72-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/1648-69-0x0000000007830000-0x0000000007838000-memory.dmp

Filesize
32KB

Download
memory/1648-30-0x0000000005B70000-0x0000000005BD6000-memory.dmp

Filesize
408KB

Download
memory/1648-29-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/1648-68-0x0000000007840000-0x000000000785A000-memory.dmp

Filesize
104KB

Download
memory/1648-36-0x0000000005BE0000-0x0000000005F34000-memory.dmp

Filesize
3.3MB

Download
memory/1648-16-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/1648-15-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/1648-43-0x0000000004EF0000-0x0000000004F0E000-memory.dmp

Filesize
120KB

Download
memory/1648-14-0x0000000004B80000-0x0000000004BB6000-memory.dmp

Filesize
216KB

Download
memory/1648-45-0x0000000006240000-0x000000000628C000-memory.dmp

Filesize
304KB

Download
memory/1648-48-0x0000000006720000-0x0000000006752000-memory.dmp

Filesize
200KB

Download
memory/1648-49-0x0000000071400000-0x000000007144C000-memory.dmp

Filesize
304KB

Download
memory/1648-59-0x0000000006700000-0x000000000671E000-memory.dmp

Filesize
120KB

Download
memory/1648-60-0x00000000071C0000-0x0000000007263000-memory.dmp

Filesize
652KB

Download
memory/1648-24-0x0000000005180000-0x00000000051A2000-memory.dmp

Filesize
136KB

Download
memory/1648-62-0x0000000007470000-0x000000000748A000-memory.dmp

Filesize
104KB

Download
memory/1648-63-0x00000000074E0000-0x00000000074EA000-memory.dmp

Filesize
40KB

Download
memory/1648-64-0x00000000076F0000-0x0000000007786000-memory.dmp

Filesize
600KB

Download
memory/1648-65-0x0000000007670000-0x0000000007681000-memory.dmp

Filesize
68KB

Download
memory/1648-66-0x00000000077E0000-0x00000000077EE000-memory.dmp

Filesize
56KB

Download
memory/1648-67-0x00000000077F0000-0x0000000007804000-memory.dmp

Filesize
80KB

Download
memory/1804-17-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

Filesize
4KB

Download
memory/1804-28-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/1804-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

Filesize
4KB

Download
memory/1804-9-0x00000000094E0000-0x000000000957C000-memory.dmp

Filesize
624KB

Download
memory/1804-8-0x0000000006DD0000-0x0000000006E8E000-memory.dmp

Filesize
760KB

Download
memory/1804-7-0x0000000005750000-0x0000000005760000-memory.dmp

Filesize
64KB

Download
memory/1804-6-0x0000000005730000-0x000000000574E000-memory.dmp

Filesize
120KB

Download
memory/1804-5-0x00000000053B0000-0x00000000053BA000-memory.dmp

Filesize
40KB

Download
memory/1804-4-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/1804-3-0x0000000005310000-0x00000000053A2000-memory.dmp

Filesize
584KB

Download
memory/1804-2-0x00000000057E0000-0x0000000005D84000-memory.dmp

Filesize
5.6MB

Download
memory/1804-1-0x0000000000830000-0x000000000093E000-memory.dmp

Filesize
1.1MB

Download