remcos | 2a0a27371b6f4d355c3264fcc668d8a0fe1af7ebb8b19dca3b5cdf20a3282d65

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 13:11

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General

Target

GST e-Payment Challan.exe
Size

548KB
MD5

10a4cb3233c444bcf6211100ab9bad9a
SHA1

2f4a679479fdff9d22226676d7a7eacab84311eb
SHA256

2a0a27371b6f4d355c3264fcc668d8a0fe1af7ebb8b19dca3b5cdf20a3282d65
SHA512

0c847f9723d1e65a03d0e129555160a7730e3ab4625d488540dd82dc968b354e31ab042dd820da6b61662af62d0687696e458440ab66b940e3fa168c09af9303
SSDEEP

12288:FUH8UsiMHGMZY/QZsg4rvpvK9+uH2OG/4RY+ajkrSyxPln+07bSsEAmD:yH8XvHFA6sgyvxK4uHBLRPaArSuPl19

Score

10^/10

remcos gg rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

62.102.148.185:9771

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
newstart
keylog_path
%AppData%
mouse_option
false
mutex
remcos_wgwfvnfssp
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

Processes:

GST e-Payment Challan.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	GST e-Payment Challan.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

GST e-Payment Challan.exe

description pid process target process

PID 1980 set thread context of 1488 1980 GST e-Payment Challan.exe GST e-Payment Challan.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

1376 schtasks.exe

description	pid	process	target process
PID 1980 set thread context of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe

pid	process
1376	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

GST e-Payment Challan.exepowershell.exepowershell.exe

pid	process
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1980	GST e-Payment Challan.exe
1028	powershell.exe
5084	powershell.exe
1980	GST e-Payment Challan.exe
5084	powershell.exe
1028	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

GST e-Payment Challan.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1980	GST e-Payment Challan.exe
Token: SeDebugPrivilege	5084	powershell.exe
Token: SeDebugPrivilege	1028	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

GST e-Payment Challan.exe

pid process

1488 GST e-Payment Challan.exe

pid	process
1488	GST e-Payment Challan.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

GST e-Payment Challan.exe

description	pid	process	target process
PID 1980 wrote to memory of 1028	1980	GST e-Payment Challan.exe	powershell.exe
PID 1980 wrote to memory of 1028	1980	GST e-Payment Challan.exe	powershell.exe
PID 1980 wrote to memory of 1028	1980	GST e-Payment Challan.exe	powershell.exe
PID 1980 wrote to memory of 5084	1980	GST e-Payment Challan.exe	powershell.exe
PID 1980 wrote to memory of 5084	1980	GST e-Payment Challan.exe	powershell.exe
PID 1980 wrote to memory of 5084	1980	GST e-Payment Challan.exe	powershell.exe
PID 1980 wrote to memory of 1376	1980	GST e-Payment Challan.exe	schtasks.exe
PID 1980 wrote to memory of 1376	1980	GST e-Payment Challan.exe	schtasks.exe
PID 1980 wrote to memory of 1376	1980	GST e-Payment Challan.exe	schtasks.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1980 wrote to memory of 1488	1980	GST e-Payment Challan.exe	GST e-Payment Challan.exe

C:\Users\Admin\AppData\Local\Temp\GST e-Payment Challan.exe
"C:\Users\Admin\AppData\Local\Temp\GST e-Payment Challan.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1980

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\GST e-Payment Challan.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1028

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\oFkpbhjTJbn.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5084

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oFkpbhjTJbn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9C40.tmp"
2⤵
- Creates scheduled task(s)
PID:1376

C:\Users\Admin\AppData\Local\Temp\GST e-Payment Challan.exe
"C:\Users\Admin\AppData\Local\Temp\GST e-Payment Challan.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1488

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:\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
2d0ee93f632d34de3fbd39f7f4def3c7

SHA1
6d969a96640451f01aba13b62e6cce30d31ba8ac

SHA256
bc88cad1711ed64d15281fbfd96802dcbbdff7c26d70a4d5b90534470f2bcc64

SHA512
848157c0dd7462f3589e22c0ff9c76c910613a098df3c16f20cd55dc2dca06c10c8c3e1d837621de14426468fd871fc48675e9ddba71361c4fae7b1b1272ff50

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jtd235kd.da0.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9C40.tmp
Filesize
1KB

MD5
151df69bc796e9d865530c85d3e4753b

SHA1
6bc520b53d8045a4f177a2e20b52e6af1d403c9d

SHA256
3913efb54656416eccaa5044f9f80b0bf71e2c3190f86b44d8826a0c49086641

SHA512
b43122fdafae9b366c56f6b795fc1de4720b9f3d988b67d3ed5345d932d359f6cf50d548752b2ce73cbaf83534fc6095ee5c1a5190a574df3b272117d14e764a

Download Submit
memory/1028-84-0x00000000022D0000-0x00000000022E0000-memory.dmp

Filesize
64KB

Download
memory/1028-18-0x00000000022D0000-0x00000000022E0000-memory.dmp

Filesize
64KB

Download
memory/1028-92-0x0000000007090000-0x00000000070A4000-memory.dmp

Filesize
80KB

Download
memory/1028-90-0x0000000007050000-0x0000000007061000-memory.dmp

Filesize
68KB

Download
memory/1028-89-0x00000000070D0000-0x0000000007166000-memory.dmp

Filesize
600KB

Download
memory/1028-87-0x0000000006E50000-0x0000000006E6A000-memory.dmp

Filesize
104KB

Download
memory/1028-23-0x0000000004A10000-0x0000000004A32000-memory.dmp

Filesize
136KB

Download
memory/1028-60-0x0000000006CA0000-0x0000000006CD2000-memory.dmp

Filesize
200KB

Download
memory/1028-16-0x00000000021A0000-0x00000000021D6000-memory.dmp

Filesize
216KB

Download
memory/1028-93-0x0000000007190000-0x00000000071AA000-memory.dmp

Filesize
104KB

Download
memory/1028-17-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1028-19-0x0000000004C90000-0x00000000052B8000-memory.dmp

Filesize
6.2MB

Download
memory/1028-70-0x0000000070F40000-0x0000000070F8C000-memory.dmp

Filesize
304KB

Download
memory/1028-59-0x000000007F480000-0x000000007F490000-memory.dmp

Filesize
64KB

Download
memory/1028-22-0x00000000022D0000-0x00000000022E0000-memory.dmp

Filesize
64KB

Download
memory/1028-55-0x0000000005B70000-0x0000000005BBC000-memory.dmp

Filesize
304KB

Download
memory/1028-94-0x0000000007170000-0x0000000007178000-memory.dmp

Filesize
32KB

Download
memory/1028-42-0x0000000005550000-0x00000000058A4000-memory.dmp

Filesize
3.3MB

Download
memory/1028-100-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1488-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-115-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-114-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-113-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-112-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-111-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-110-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-109-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-108-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-107-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-106-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-105-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-104-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1488-103-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1980-8-0x00000000068F0000-0x0000000006950000-memory.dmp

Filesize
384KB

Download
memory/1980-11-0x0000000005410000-0x0000000005420000-memory.dmp

Filesize
64KB

Download
memory/1980-9-0x000000000A330000-0x000000000A3CC000-memory.dmp

Filesize
624KB

Download
memory/1980-52-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1980-10-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1980-7-0x0000000005630000-0x000000000563C000-memory.dmp

Filesize
48KB

Download
memory/1980-0-0x0000000000A30000-0x0000000000ABE000-memory.dmp

Filesize
568KB

Download
memory/1980-6-0x0000000005610000-0x0000000005620000-memory.dmp

Filesize
64KB

Download
memory/1980-5-0x0000000005520000-0x000000000552A000-memory.dmp

Filesize
40KB

Download
memory/1980-4-0x0000000005410000-0x0000000005420000-memory.dmp

Filesize
64KB

Download
memory/1980-3-0x0000000005480000-0x0000000005512000-memory.dmp

Filesize
584KB

Download
memory/1980-2-0x0000000005B10000-0x00000000060B4000-memory.dmp

Filesize
5.6MB

Download
memory/1980-1-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/5084-101-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/5084-62-0x000000007FB10000-0x000000007FB20000-memory.dmp

Filesize
64KB

Download
memory/5084-73-0x0000000006FB0000-0x0000000006FCE000-memory.dmp

Filesize
120KB

Download
memory/5084-74-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

Filesize
64KB

Download
memory/5084-86-0x00000000079B0000-0x000000000802A000-memory.dmp

Filesize
6.5MB

Download
memory/5084-61-0x0000000070F40000-0x0000000070F8C000-memory.dmp

Filesize
304KB

Download
memory/5084-20-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/5084-85-0x0000000007230000-0x00000000072D3000-memory.dmp

Filesize
652KB

Download
memory/5084-21-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

Filesize
64KB

Download
memory/5084-91-0x00000000075A0000-0x00000000075AE000-memory.dmp

Filesize
56KB

Download
memory/5084-25-0x0000000005020000-0x0000000005086000-memory.dmp

Filesize
408KB

Download
memory/5084-54-0x0000000006050000-0x000000000606E000-memory.dmp

Filesize
120KB

Download
memory/5084-88-0x00000000073E0000-0x00000000073EA000-memory.dmp

Filesize
40KB

Download
memory/5084-26-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download