remcos | 1cd1fef1a13acb996ecd6be05f2d6e91e5f3ddedee8d333fd1fb59bf1bd4ff10

Analysis

max time kernel
160s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2023 01:00

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General

Target

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
Size

900KB
MD5

01fed888c73f8954f2c8a4e334cc2dae
SHA1

0965bbe8bb7126f8648f8a09f57cbfcce1a0675f
SHA256

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5
SHA512

0ddc89f2f7db79756ef2e4d728eb73fc2da2fdc3c4fee760d82e3a1f10ddd87339ba0b18f122b321decbe5de52ce45e0a02226b842b07a96418e8eb721758bfa
SSDEEP

24576:/16gHdPIQkEJjUdxt6qy4QKOv4Kv6GR2fSMRMHAj:/M2zkbz8lxNv4KdYMHA

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

109.248.151.76:1974

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-5HASAC
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:

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

description	pid	process	target process
PID 3076 set thread context of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.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

1172 schtasks.exe

pid	process
1172	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exepowershell.exepowershell.exe

pid	process
3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
4752	powershell.exe
2208	powershell.exe
4752	powershell.exe
2208	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
Token: SeDebugPrivilege	4752	powershell.exe
Token: SeDebugPrivilege	2208	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

pid process

4268 33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

pid	process
4268	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

description	pid	process	target process
PID 3076 wrote to memory of 2208	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	powershell.exe
PID 3076 wrote to memory of 2208	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	powershell.exe
PID 3076 wrote to memory of 2208	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	powershell.exe
PID 3076 wrote to memory of 4752	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	powershell.exe
PID 3076 wrote to memory of 4752	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	powershell.exe
PID 3076 wrote to memory of 4752	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	powershell.exe
PID 3076 wrote to memory of 1172	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	schtasks.exe
PID 3076 wrote to memory of 1172	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	schtasks.exe
PID 3076 wrote to memory of 1172	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	schtasks.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
PID 3076 wrote to memory of 4268	3076	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe	33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe

C:\Users\Admin\AppData\Local\Temp\33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
"C:\Users\Admin\AppData\Local\Temp\33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3076

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\33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2208

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aKTpYw.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4752

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aKTpYw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9016.tmp"
2⤵
- Creates scheduled task(s)
PID:1172

C:\Users\Admin\AppData\Local\Temp\33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe
"C:\Users\Admin\AppData\Local\Temp\33208d34b4f679b8ec036d5be12f4d2ca960dbbd8af46b20247d5df93f1f63a5.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:4268

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
67f07433cb6d1ab9a50d273b50169798

SHA1
be00bf4e4072685ef1ef101d7fa15f7efc517cd0

SHA256
3c5222f81c84526f0a0b69a6fe893f160cea2be0eafc358f4c760ed3cba48fd6

SHA512
e1cdddb3026d4de3e5943d85bed3ca34335a1333ef6b18fe6caae71a0ae9687e828774818873c7066fb8935ab5cfe0abcece30d21a3312c603eacd10eebacbc3

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
19f5322e084374871f5f24eadfe92d65

SHA1
93f8054d38997981fa55ff6c2bbe42e71fd6cbc1

SHA256
910fe7196be057534bd44d5bd5a8d957efb392e614d838d2971a690b6470ccaf

SHA512
84e476753d6613216ded349c54bda9be1bbef5e167a44256dc8997aa6d197ef482a32feb00b0e558ac78486b522dca06846269c73cde79b6cc396806c9b9879b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_whjbf5ah.z5o.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9016.tmp

Filesize
1KB

MD5
17f5ab15832b552b91ea48fc094d6b82

SHA1
fe62589809d64381917d43229c05b6e5a1f3c46a

SHA256
85c37ef849d5f89880fa16153c11db185bc1edc0c504fc182b959fbf5776d1a0

SHA512
a9c5fcf9ad85c5f19bceab8893de804e80ae941f7a0a8d4174b6aae0c8c511a3441ecf276cd7876e8d6852daf461dbdbf24a4dff4486431a546a442ee3c0e2d3

Download Submit
memory/2208-65-0x0000000000CD0000-0x0000000000CE0000-memory.dmp

Filesize
64KB

Download
memory/2208-33-0x0000000004BE0000-0x0000000004C46000-memory.dmp

Filesize
408KB

Download
memory/2208-99-0x00000000071B0000-0x00000000071CA000-memory.dmp

Filesize
104KB

Download
memory/2208-102-0x0000000007190000-0x0000000007198000-memory.dmp

Filesize
32KB

Download
memory/2208-94-0x00000000070F0000-0x0000000007186000-memory.dmp

Filesize
600KB

Download
memory/2208-93-0x0000000000CD0000-0x0000000000CE0000-memory.dmp

Filesize
64KB

Download
memory/2208-90-0x0000000006E70000-0x0000000006E8A000-memory.dmp

Filesize
104KB

Download
memory/2208-110-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2208-15-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2208-16-0x0000000000CD0000-0x0000000000CE0000-memory.dmp

Filesize
64KB

Download
memory/2208-18-0x0000000000D20000-0x0000000000D56000-memory.dmp

Filesize
216KB

Download
memory/2208-67-0x0000000071E10000-0x0000000071E5C000-memory.dmp

Filesize
304KB

Download
memory/2208-98-0x00000000070B0000-0x00000000070C4000-memory.dmp

Filesize
80KB

Download
memory/2208-20-0x0000000004D90000-0x00000000053B8000-memory.dmp

Filesize
6.2MB

Download
memory/2208-64-0x0000000000CD0000-0x0000000000CE0000-memory.dmp

Filesize
64KB

Download
memory/2208-61-0x0000000005B90000-0x0000000005BDC000-memory.dmp

Filesize
304KB

Download
memory/2208-59-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2208-30-0x0000000004B70000-0x0000000004BD6000-memory.dmp

Filesize
408KB

Download
memory/3076-11-0x0000000007460000-0x0000000007518000-memory.dmp

Filesize
736KB

Download
memory/3076-5-0x0000000005A20000-0x0000000005A2A000-memory.dmp

Filesize
40KB

Download
memory/3076-7-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3076-8-0x0000000006000000-0x0000000006008000-memory.dmp

Filesize
32KB

Download
memory/3076-32-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3076-1-0x0000000000EA0000-0x0000000000F88000-memory.dmp

Filesize
928KB

Download
memory/3076-9-0x0000000005BD0000-0x0000000005BE0000-memory.dmp

Filesize
64KB

Download
memory/3076-6-0x0000000005D90000-0x0000000005DA8000-memory.dmp

Filesize
96KB

Download
memory/3076-10-0x0000000006010000-0x000000000601A000-memory.dmp

Filesize
40KB

Download
memory/3076-2-0x0000000006020000-0x00000000065C4000-memory.dmp

Filesize
5.6MB

Download
memory/3076-4-0x0000000005BD0000-0x0000000005BE0000-memory.dmp

Filesize
64KB

Download
memory/3076-12-0x0000000009B70000-0x0000000009C0C000-memory.dmp

Filesize
624KB

Download
memory/3076-3-0x0000000005960000-0x00000000059F2000-memory.dmp

Filesize
584KB

Download
memory/3076-0-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4268-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-131-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-132-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4268-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4752-22-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/4752-100-0x00000000079D0000-0x00000000079EA000-memory.dmp

Filesize
104KB

Download
memory/4752-97-0x00000000078C0000-0x00000000078CE000-memory.dmp

Filesize
56KB

Download
memory/4752-96-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4752-95-0x00000000067C0000-0x00000000067D1000-memory.dmp

Filesize
68KB

Download
memory/4752-91-0x0000000007700000-0x000000000770A000-memory.dmp

Filesize
40KB

Download
memory/4752-104-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/4752-89-0x0000000007CD0000-0x000000000834A000-memory.dmp

Filesize
6.5MB

Download
memory/4752-109-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4752-88-0x0000000007570000-0x0000000007613000-memory.dmp

Filesize
652KB

Download
memory/4752-87-0x0000000006930000-0x000000000694E000-memory.dmp

Filesize
120KB

Download
memory/4752-66-0x0000000006970000-0x00000000069A2000-memory.dmp

Filesize
200KB

Download
memory/4752-73-0x0000000071E10000-0x0000000071E5C000-memory.dmp

Filesize
304KB

Download
memory/4752-63-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/4752-60-0x00000000061A0000-0x00000000061BE000-memory.dmp

Filesize
120KB

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memory/4752-57-0x0000000005E40000-0x0000000006194000-memory.dmp

Filesize
3.3MB

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memory/4752-27-0x00000000051F0000-0x0000000005212000-memory.dmp

Filesize
136KB

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memory/4752-23-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

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memory/4752-21-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

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