remcos | b162074bf62543007615d08db1dffa75022858944a0ecc5de5ed8d3be561e3da

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
11-04-2024 07:18

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General

Target

Payment Invoice.exe
Size

910KB
MD5

783addabb1e7dcb48130649faaf852c7
SHA1

c87553da7df62530e9262b35930d6a15aff4949a
SHA256

b162074bf62543007615d08db1dffa75022858944a0ecc5de5ed8d3be561e3da
SHA512

9f352fd443bd680a71ce1a4ece252baa81c2c293727d520ce57da93d461808f50be6c22f4a6f8e0a18f0857785b47f783f1f3cc6c41442275c12149e067b3c3b
SSDEEP

24576:IsWW2f6w8r89u8TeWMkzIULsHTJMGoMzyc/VdK:IsT2fTC8BSWMkluMMzyctd

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

bignight.net:3363

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-1XSDBO
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

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:

Payment Invoice.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation	Payment Invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Payment Invoice.exe

description pid process target process

PID 1504 set thread context of 3212 1504 Payment Invoice.exe Payment Invoice.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

2740 schtasks.exe

description	pid	process	target process
PID 1504 set thread context of 3212	1504	Payment Invoice.exe	Payment Invoice.exe

pid	process
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Payment Invoice.exepowershell.exepowershell.exe

pid	process
1504	Payment Invoice.exe
1504	Payment Invoice.exe
3004	powershell.exe
3004	powershell.exe
2592	powershell.exe
2592	powershell.exe
3004	powershell.exe
2592	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Payment Invoice.exe

pid process

3212 Payment Invoice.exe

pid	process
3212	Payment Invoice.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Payment Invoice.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1504	Payment Invoice.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	3004	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Payment Invoice.exe

pid process

3212 Payment Invoice.exe

pid	process
3212	Payment Invoice.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Payment Invoice.exe

description	pid	process	target process
PID 1504 wrote to memory of 2592	1504	Payment Invoice.exe	powershell.exe
PID 1504 wrote to memory of 2592	1504	Payment Invoice.exe	powershell.exe
PID 1504 wrote to memory of 2592	1504	Payment Invoice.exe	powershell.exe
PID 1504 wrote to memory of 3004	1504	Payment Invoice.exe	powershell.exe
PID 1504 wrote to memory of 3004	1504	Payment Invoice.exe	powershell.exe
PID 1504 wrote to memory of 3004	1504	Payment Invoice.exe	powershell.exe
PID 1504 wrote to memory of 2740	1504	Payment Invoice.exe	schtasks.exe
PID 1504 wrote to memory of 2740	1504	Payment Invoice.exe	schtasks.exe
PID 1504 wrote to memory of 2740	1504	Payment Invoice.exe	schtasks.exe
PID 1504 wrote to memory of 4820	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 4820	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 4820	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe
PID 1504 wrote to memory of 3212	1504	Payment Invoice.exe	Payment Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2592

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HFqduGIsFotY.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HFqduGIsFotY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD66.tmp"
2⤵
- Creates scheduled task(s)
PID:2740

C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe"
2⤵
PID:4820

C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe"
2⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3212

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=1328 --field-trial-handle=2260,i,11662483365823245381,11064702639240765741,262144 --variations-seed-version /prefetch:8
1⤵
PID:1576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
f1eea92b9c6392e39bdd2e8e5e9d1216

SHA1
e153ad0d3f9365a9c5e3c8439044d3c7b492704c

SHA256
602200ce7b992cdb538593335deb53c2eca1f9550c913d79daaeec4c216b3a59

SHA512
c43829d28008a9eaed2759edbf6e90b846aedc0d88b72cd9e80dc0dfe808c5fc365b0a008540629debd51b4f20898d13c70a408960496e1153f101fcbd818854

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
21691b46ec7280ab878c8a462eb56662

SHA1
fab9858e3323b0d868d78ee3eea6cb5f0b733edc

SHA256
5751a0cd193b831630a7c7a68be525518628e4358a4f190f8903b118fb45f6bf

SHA512
ed86ff9b84269b75388941e803f741ca70e9272c85314593c87720c2e7f4fcf782e3bafe261db1d06e093bacff142f7226934dc24a2455587aa369b2269f7dcd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fp5vqkrc.4jj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAD66.tmp

Filesize
1KB

MD5
5e938be1bd5e559c039129dc238b6b35

SHA1
145b5bbc769c648dbb4d6b6b64362283e7112514

SHA256
266b53775f176f8637fc6bfbb12b07f30acf1203f6ef9fc20f1607160e06fc8f

SHA512
cb1db4f8eb1aebddacaac7ab26d4af7781950c74303125ed20d3ebb71119253e0bcaee625208e061379a5142d42ed7da089be0a671be6312247842449d2be27e

Download Submit
memory/1504-4-0x0000000005310000-0x0000000005320000-memory.dmp

Filesize
64KB

Download
memory/1504-6-0x0000000005800000-0x0000000005818000-memory.dmp

Filesize
96KB

Download
memory/1504-7-0x00000000056C0000-0x00000000056C8000-memory.dmp

Filesize
32KB

Download
memory/1504-8-0x0000000004CC0000-0x0000000004CCC000-memory.dmp

Filesize
48KB

Download
memory/1504-9-0x0000000006750000-0x0000000006810000-memory.dmp

Filesize
768KB

Download
memory/1504-10-0x0000000007050000-0x00000000070EC000-memory.dmp

Filesize
624KB

Download
memory/1504-5-0x00000000053F0000-0x00000000053FA000-memory.dmp

Filesize
40KB

Download
memory/1504-0-0x0000000074E80000-0x0000000075630000-memory.dmp

Filesize
7.7MB

Download
memory/1504-27-0x0000000074E80000-0x0000000075630000-memory.dmp

Filesize
7.7MB

Download
memory/1504-3-0x0000000005320000-0x00000000053B2000-memory.dmp

Filesize
584KB

Download
memory/1504-2-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/1504-1-0x0000000000850000-0x000000000093A000-memory.dmp

Filesize
936KB

Download
memory/2592-19-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/2592-111-0x0000000074E80000-0x0000000075630000-memory.dmp

Filesize
7.7MB

Download
memory/2592-17-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/2592-61-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/2592-18-0x00000000053B0000-0x00000000059D8000-memory.dmp

Filesize
6.2MB

Download
memory/2592-16-0x0000000074E80000-0x0000000075630000-memory.dmp

Filesize
7.7MB

Download
memory/2592-99-0x00000000074F0000-0x00000000074FE000-memory.dmp

Filesize
56KB

Download
memory/2592-97-0x00000000074C0000-0x00000000074D1000-memory.dmp

Filesize
68KB

Download
memory/2592-92-0x00000000072C0000-0x00000000072DA000-memory.dmp

Filesize
104KB

Download
memory/2592-91-0x0000000007900000-0x0000000007F7A000-memory.dmp

Filesize
6.5MB

Download
memory/2592-44-0x0000000005B10000-0x0000000005E64000-memory.dmp

Filesize
3.3MB

Download
memory/2592-15-0x0000000002660000-0x0000000002696000-memory.dmp

Filesize
216KB

Download
memory/2592-65-0x000000007F5D0000-0x000000007F5E0000-memory.dmp

Filesize
64KB

Download
memory/2592-66-0x00000000065A0000-0x00000000065D2000-memory.dmp

Filesize
200KB

Download
memory/2592-28-0x0000000004FD0000-0x0000000004FF2000-memory.dmp

Filesize
136KB

Download
memory/2592-78-0x0000000071130000-0x000000007117C000-memory.dmp

Filesize
304KB

Download
memory/3004-22-0x0000000074E80000-0x0000000075630000-memory.dmp

Filesize
7.7MB

Download
memory/3004-93-0x00000000075C0000-0x00000000075CA000-memory.dmp

Filesize
40KB

Download
memory/3004-21-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/3004-110-0x0000000074E80000-0x0000000075630000-memory.dmp

Filesize
7.7MB

Download
memory/3004-60-0x0000000004DF0000-0x0000000004E00000-memory.dmp

Filesize
64KB

Download
memory/3004-56-0x0000000006580000-0x00000000065CC000-memory.dmp

Filesize
304KB

Download
memory/3004-104-0x0000000007870000-0x0000000007878000-memory.dmp

Filesize
32KB

Download
memory/3004-67-0x0000000071130000-0x000000007117C000-memory.dmp

Filesize
304KB

Download
memory/3004-103-0x0000000007890000-0x00000000078AA000-memory.dmp

Filesize
104KB

Download
memory/3004-80-0x00000000067F0000-0x000000000680E000-memory.dmp

Filesize
120KB

Download
memory/3004-55-0x0000000006240000-0x000000000625E000-memory.dmp

Filesize
120KB

Download
memory/3004-90-0x0000000007430000-0x00000000074D3000-memory.dmp

Filesize
652KB

Download
memory/3004-69-0x000000007F240000-0x000000007F250000-memory.dmp

Filesize
64KB

Download
memory/3004-100-0x0000000007790000-0x00000000077A4000-memory.dmp

Filesize
80KB

Download
memory/3004-32-0x0000000005B30000-0x0000000005B96000-memory.dmp

Filesize
408KB

Download
memory/3004-37-0x0000000005BA0000-0x0000000005C06000-memory.dmp

Filesize
408KB

Download
memory/3004-96-0x00000000077D0000-0x0000000007866000-memory.dmp

Filesize
600KB

Download
memory/3212-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-124-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-138-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-139-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-141-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-143-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-144-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-151-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-152-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3212-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download