remcos | 2a0a27371b6f4d355c3264fcc668d8a0fe1af7ebb8b19dca3b5cdf20a3282d65

Analysis

max time kernel
141s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 13:12

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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-1-5-21-1497073144-2389943819-3385106915-1000\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 1452 set thread context of 3508 1452 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

1972 schtasks.exe

description	pid	process	target process
PID 1452 set thread context of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe

pid	process
1972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

GST e-Payment Challan.exepowershell.exepowershell.exe

pid	process
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
1452	GST e-Payment Challan.exe
4448	powershell.exe
1052	powershell.exe
1452	GST e-Payment Challan.exe
1052	powershell.exe
4448	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

GST e-Payment Challan.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1452	GST e-Payment Challan.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	4448	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

GST e-Payment Challan.exe

pid process

3508 GST e-Payment Challan.exe

pid	process
3508	GST e-Payment Challan.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

GST e-Payment Challan.exe

description	pid	process	target process
PID 1452 wrote to memory of 1052	1452	GST e-Payment Challan.exe	powershell.exe
PID 1452 wrote to memory of 1052	1452	GST e-Payment Challan.exe	powershell.exe
PID 1452 wrote to memory of 1052	1452	GST e-Payment Challan.exe	powershell.exe
PID 1452 wrote to memory of 4448	1452	GST e-Payment Challan.exe	powershell.exe
PID 1452 wrote to memory of 4448	1452	GST e-Payment Challan.exe	powershell.exe
PID 1452 wrote to memory of 4448	1452	GST e-Payment Challan.exe	powershell.exe
PID 1452 wrote to memory of 1972	1452	GST e-Payment Challan.exe	schtasks.exe
PID 1452 wrote to memory of 1972	1452	GST e-Payment Challan.exe	schtasks.exe
PID 1452 wrote to memory of 1972	1452	GST e-Payment Challan.exe	schtasks.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	GST e-Payment Challan.exe	GST e-Payment Challan.exe
PID 1452 wrote to memory of 3508	1452	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:1452

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:1052

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:4448

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oFkpbhjTJbn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA131.tmp"
2⤵
- Creates scheduled task(s)
PID:1972

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:3508

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
92a2a96eb91c82919b9b428defa29b73

SHA1
012dfd41c19f4134d74d189e49ccef6f676f8d15

SHA256
023552dea17e34f1d38dd119bbd101910de25f995e3389e16c3fa83ada556247

SHA512
eea7b1f9d7204d221caf0219e2f4e3aeedce51fe238012b4fa111eb1cfae31987fa786f5bb3e21b50f86109497219a71b3b82e4e996105e5a0cb6f6aa4eae390

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i4xvgwwr.bth.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA131.tmp
Filesize
1KB

MD5
9cca36b3d631a4d98e10d9bedf081757

SHA1
956b5d3a986a9bda020c0f02676b5fc2e528dac6

SHA256
8c9c3b893a22cd0940e8ae0ccd2a5de0df2722a2726c48844bf33bddf04b573e

SHA512
f1d5278133d17d66438e2abfd508b155b3e713f5873fb1771dd390688297dc178bcae1d8b9340355c725d1bd883811203474393e1bbc137f29e26e51bc284ca1

Download Submit
memory/1052-86-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/1052-26-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/1052-90-0x0000000007850000-0x000000000785A000-memory.dmp

Filesize
40KB

Download
memory/1052-88-0x0000000007E20000-0x000000000849A000-memory.dmp

Filesize
6.5MB

Download
memory/1052-102-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1052-85-0x0000000007690000-0x0000000007733000-memory.dmp

Filesize
652KB

Download
memory/1052-74-0x000000007EF90000-0x000000007EFA0000-memory.dmp

Filesize
64KB

Download
memory/1052-61-0x0000000070C00000-0x0000000070C4C000-memory.dmp

Filesize
304KB

Download
memory/1052-16-0x0000000002BA0000-0x0000000002BD6000-memory.dmp

Filesize
216KB

Download
memory/1052-17-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1052-18-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/1052-19-0x00000000055C0000-0x0000000005BE8000-memory.dmp

Filesize
6.2MB

Download
memory/1052-20-0x0000000002B50000-0x0000000002B60000-memory.dmp

Filesize
64KB

Download
memory/1052-72-0x0000000006A60000-0x0000000006A7E000-memory.dmp

Filesize
120KB

Download
memory/1052-27-0x0000000005EA0000-0x0000000005F06000-memory.dmp

Filesize
408KB

Download
memory/1452-1-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1452-11-0x00000000050A0000-0x00000000050B0000-memory.dmp

Filesize
64KB

Download
memory/1452-0-0x00000000003E0000-0x000000000046E000-memory.dmp

Filesize
568KB

Download
memory/1452-2-0x0000000005390000-0x0000000005934000-memory.dmp

Filesize
5.6MB

Download
memory/1452-5-0x0000000004E30000-0x0000000004E3A000-memory.dmp

Filesize
40KB

Download
memory/1452-3-0x0000000004E80000-0x0000000004F12000-memory.dmp

Filesize
584KB

Download
memory/1452-52-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1452-6-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/1452-9-0x000000000A0A0000-0x000000000A13C000-memory.dmp

Filesize
624KB

Download
memory/1452-10-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1452-8-0x0000000007950000-0x00000000079B0000-memory.dmp

Filesize
384KB

Download
memory/1452-7-0x0000000005360000-0x000000000536C000-memory.dmp

Filesize
48KB

Download
memory/1452-4-0x00000000050A0000-0x00000000050B0000-memory.dmp

Filesize
64KB

Download
memory/3508-112-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-117-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-123-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-116-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-119-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-115-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-105-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-122-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-111-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-118-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-120-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-110-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-109-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-108-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-107-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-106-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-121-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3508-114-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4448-21-0x0000000002A30000-0x0000000002A40000-memory.dmp

Filesize
64KB

Download
memory/4448-103-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4448-96-0x00000000079D0000-0x00000000079D8000-memory.dmp

Filesize
32KB

Download
memory/4448-95-0x00000000079F0000-0x0000000007A0A000-memory.dmp

Filesize
104KB

Download
memory/4448-94-0x00000000078F0000-0x0000000007904000-memory.dmp

Filesize
80KB

Download
memory/4448-93-0x00000000078E0000-0x00000000078EE000-memory.dmp

Filesize
56KB

Download
memory/4448-92-0x00000000078B0000-0x00000000078C1000-memory.dmp

Filesize
68KB

Download
memory/4448-91-0x0000000007930000-0x00000000079C6000-memory.dmp

Filesize
600KB

Download
memory/4448-89-0x00000000076B0000-0x00000000076CA000-memory.dmp

Filesize
104KB

Download
memory/4448-87-0x0000000002A30000-0x0000000002A40000-memory.dmp

Filesize
64KB

Download
memory/4448-84-0x0000000002A30000-0x0000000002A40000-memory.dmp

Filesize
64KB

Download
memory/4448-60-0x0000000006930000-0x0000000006962000-memory.dmp

Filesize
200KB

Download
memory/4448-62-0x000000007F470000-0x000000007F480000-memory.dmp

Filesize
64KB

Download
memory/4448-73-0x0000000070C00000-0x0000000070C4C000-memory.dmp

Filesize
304KB

Download
memory/4448-56-0x00000000063D0000-0x000000000641C000-memory.dmp

Filesize
304KB

Download
memory/4448-55-0x0000000006380000-0x000000000639E000-memory.dmp

Filesize
120KB

Download
memory/4448-47-0x0000000005EA0000-0x00000000061F4000-memory.dmp

Filesize
3.3MB

Download
memory/4448-25-0x00000000053D0000-0x00000000053F2000-memory.dmp

Filesize
136KB

Download
memory/4448-24-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/4448-22-0x0000000002A30000-0x0000000002A40000-memory.dmp

Filesize
64KB

Download