remcos | 9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462

Analysis

max time kernel
185s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 05:43

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General

Target

GUHUDES23ED.exe
Size

1.4MB
MD5

2279756982754f30b1c3a047acb5fb3c
SHA1

da6889d365c47ac46a16f1b3409d04c5778e4d50
SHA256

9a00523dfd6d321adb4fffbb54a1550055dde6301dddba3a5157a4169b11d462
SHA512

9d741a15ba84d386e641854a2ddeb934424c64d2543e2ec34cf5f9d042932e2a075daf109c540310e0c887e0e32825ae8d9967bb32bd7b23c869123f08bf18d8
SSDEEP

24576:VwOx9JKFIb6bQFf4SVuoOlwFjF0VbJszH2bF:zk90FQTlfJsz2

Score

10^/10

remcos hosyt rat

Malware Config

Extracted

Family

remcos

Botnet

HOSYT

194.147.140.246:1998

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-QOYAK6
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

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-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	GUHUDES23ED.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4088 set thread context of 3400	4088	GUHUDES23ED.exe	101

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

pid	Process
376	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4088	GUHUDES23ED.exe
4648	powershell.exe
4648	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4088	GUHUDES23ED.exe
Token: SeDebugPrivilege	4648	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3400	GUHUDES23ED.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 4648	4088	GUHUDES23ED.exe	97
PID 4088 wrote to memory of 4648	4088	GUHUDES23ED.exe	97
PID 4088 wrote to memory of 4648	4088	GUHUDES23ED.exe	97
PID 4088 wrote to memory of 376	4088	GUHUDES23ED.exe	99
PID 4088 wrote to memory of 376	4088	GUHUDES23ED.exe	99
PID 4088 wrote to memory of 376	4088	GUHUDES23ED.exe	99
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101
PID 4088 wrote to memory of 3400	4088	GUHUDES23ED.exe	101

C:\Users\Admin\AppData\Local\Temp\GUHUDES23ED.exe
"C:\Users\Admin\AppData\Local\Temp\GUHUDES23ED.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gmhPbe.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4648
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gmhPbe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF661.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:376
- C:\Users\Admin\AppData\Local\Temp\GUHUDES23ED.exe
  "C:\Users\Admin\AppData\Local\Temp\GUHUDES23ED.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3400

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
f216464fea099bdbc8dda9d56020d541

SHA1
7ba084a9074bb5da4347fe0d78f4dcf31043f0f6

SHA256
ddc74f4218edc8e2ff45ec54a057d4f7ad6188b1c7ac28744deb808fd77dc7b0

SHA512
d33c6b82c7bdc69803fd419b8e2e17f4d52af9fe4a006c33449d7a0d0ca29667c57f042e26ab5eb5ab7493dba6c1ef12950f7f96f09601d586f49e93a3843a62

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wii104gv.riv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF661.tmp

Filesize
1KB

MD5
afd48de417049e97ca588ff44f38ec68

SHA1
75d551604febca8353d8fb80c615364686732916

SHA256
9451dcf407135796fed4c8b7ab0cc60644e1a466b54615719cac50f3b69d9ecd

SHA512
735957daec9ee0025428ce42b71980ba809c23567d45f2a8977ef196ad7b0dc99186f06ccb46cbec98d4c0092c2953e68760b057b736d59e2ef7b0fcab155972

Download Submit
memory/3400-30-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-31-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-86-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-24-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-22-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-87-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3400-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4088-5-0x0000000005A00000-0x0000000005A0A000-memory.dmp

Filesize
40KB

Download
memory/4088-2-0x0000000005FD0000-0x0000000006574000-memory.dmp

Filesize
5.6MB

Download
memory/4088-26-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/4088-3-0x0000000005AC0000-0x0000000005B52000-memory.dmp

Filesize
584KB

Download
memory/4088-0-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/4088-9-0x0000000005CE0000-0x0000000005CF0000-memory.dmp

Filesize
64KB

Download
memory/4088-11-0x000000000B960000-0x000000000B9FC000-memory.dmp

Filesize
624KB

Download
memory/4088-4-0x0000000005D00000-0x0000000005D10000-memory.dmp

Filesize
64KB

Download
memory/4088-8-0x0000000005D00000-0x0000000005D10000-memory.dmp

Filesize
64KB

Download
memory/4088-7-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/4088-6-0x0000000005C70000-0x0000000005C8C000-memory.dmp

Filesize
112KB

Download
memory/4088-10-0x00000000098A0000-0x0000000009958000-memory.dmp

Filesize
736KB

Download
memory/4088-1-0x0000000000EE0000-0x000000000104C000-memory.dmp

Filesize
1.4MB

Download
memory/4648-18-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/4648-40-0x0000000005830000-0x0000000005852000-memory.dmp

Filesize
136KB

Download
memory/4648-41-0x00000000058D0000-0x0000000005936000-memory.dmp

Filesize
408KB

Download
memory/4648-42-0x00000000061D0000-0x0000000006236000-memory.dmp

Filesize
408KB

Download
memory/4648-38-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/4648-52-0x0000000006340000-0x0000000006694000-memory.dmp

Filesize
3.3MB

Download
memory/4648-34-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/4648-55-0x0000000006860000-0x000000000687E000-memory.dmp

Filesize
120KB

Download
memory/4648-56-0x00000000068B0000-0x00000000068FC000-memory.dmp

Filesize
304KB

Download
memory/4648-57-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/4648-59-0x000000007FCA0000-0x000000007FCB0000-memory.dmp

Filesize
64KB

Download
memory/4648-60-0x0000000006E30000-0x0000000006E62000-memory.dmp

Filesize
200KB

Download
memory/4648-61-0x00000000712C0000-0x000000007130C000-memory.dmp

Filesize
304KB

Download
memory/4648-71-0x0000000006E10000-0x0000000006E2E000-memory.dmp

Filesize
120KB

Download
memory/4648-72-0x0000000007A90000-0x0000000007B33000-memory.dmp

Filesize
652KB

Download
memory/4648-73-0x00000000081D0000-0x000000000884A000-memory.dmp

Filesize
6.5MB

Download
memory/4648-74-0x0000000007B90000-0x0000000007BAA000-memory.dmp

Filesize
104KB

Download
memory/4648-75-0x0000000007C00000-0x0000000007C0A000-memory.dmp

Filesize
40KB

Download
memory/4648-76-0x0000000007E10000-0x0000000007EA6000-memory.dmp

Filesize
600KB

Download
memory/4648-77-0x0000000007D90000-0x0000000007DA1000-memory.dmp

Filesize
68KB

Download
memory/4648-78-0x0000000007DC0000-0x0000000007DCE000-memory.dmp

Filesize
56KB

Download
memory/4648-79-0x0000000007DD0000-0x0000000007DE4000-memory.dmp

Filesize
80KB

Download
memory/4648-81-0x0000000007ED0000-0x0000000007EEA000-memory.dmp

Filesize
104KB

Download
memory/4648-82-0x0000000007EB0000-0x0000000007EB8000-memory.dmp

Filesize
32KB

Download
memory/4648-84-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/4648-33-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/4648-21-0x0000000005970000-0x0000000005F98000-memory.dmp

Filesize
6.2MB

Download
memory/4648-19-0x0000000005330000-0x0000000005340000-memory.dmp

Filesize
64KB

Download
memory/4648-17-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/4648-16-0x0000000002EA0000-0x0000000002ED6000-memory.dmp

Filesize
216KB

Download