remcos | 845c3ba76768948ab3df490599f02d060cd464c6251e16e7847d53707254ee46

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/06/2024, 13:01

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General

Target

Challan copy.pdf.exe
Size

547KB
MD5

086ad86cc1560ecd86555678342047fb
SHA1

0d17bc82703565596221e818b1fb35fa1eea1c99
SHA256

845c3ba76768948ab3df490599f02d060cd464c6251e16e7847d53707254ee46
SHA512

00dac2c6fe8ab1b2ab4820e9c762aa734f8113b5b13402427d9f87c350627772e36422c916c03a3446b8adb0bbb63e0d9d1b0bbf9c20cf3c1882f01456af8de7
SSDEEP

12288:Q1rx9llQnQra3dtYZ+WVCFGLoRggElHOQlRcMU1mmEAmD:LQOtt0VAGURYuMRcMU3

Score

10^/10

remcos banksy execution rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

banksy

62.102.148.166:3319

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
egsy
keylog_path
%AppData%
mouse_option
false
mutex
remcos_rpklfmytvo
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4932	powershell.exe
5052	powershell.exe

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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	Challan copy.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 448 set thread context of 3408	448	Challan copy.pdf.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
904	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
448	Challan copy.pdf.exe
4932	powershell.exe
5052	powershell.exe
448	Challan copy.pdf.exe
4932	powershell.exe
5052	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	448	Challan copy.pdf.exe
Token: SeDebugPrivilege	4932	powershell.exe
Token: SeDebugPrivilege	5052	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3408	Challan copy.pdf.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 4932	448	Challan copy.pdf.exe	85
PID 448 wrote to memory of 4932	448	Challan copy.pdf.exe	85
PID 448 wrote to memory of 4932	448	Challan copy.pdf.exe	85
PID 448 wrote to memory of 5052	448	Challan copy.pdf.exe	87
PID 448 wrote to memory of 5052	448	Challan copy.pdf.exe	87
PID 448 wrote to memory of 5052	448	Challan copy.pdf.exe	87
PID 448 wrote to memory of 904	448	Challan copy.pdf.exe	89
PID 448 wrote to memory of 904	448	Challan copy.pdf.exe	89
PID 448 wrote to memory of 904	448	Challan copy.pdf.exe	89
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91
PID 448 wrote to memory of 3408	448	Challan copy.pdf.exe	91

C:\Users\Admin\AppData\Local\Temp\Challan copy.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Challan copy.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:448
- 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\Challan copy.pdf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4932
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jBAjnj.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5052
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jBAjnj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB9AB.tmp"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:904
- C:\Users\Admin\AppData\Local\Temp\Challan copy.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Challan copy.pdf.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:3408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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\Temp\__PSScriptPolicyTest_gxk5yhiq.afo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB9AB.tmp

Filesize
1KB

MD5
b737d2632669bf980fc05934d3fd6763

SHA1
7805b76bbee6897e152c9c3662189f3c3fc2c9e4

SHA256
b45e4bbb2c101d60e3c6c666db4222558ca17142ca41212475680a4218c79908

SHA512
596dfddaf06c3be5cf6fa295870b94a5105512a7242d72aad14d853a97518a5808c5553c3c562e50e13c220bfdfe4367e4e3b43d0f9e2e22c74789fb12f1b0cd

Download Submit
memory/448-5-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/448-12-0x00000000072C0000-0x0000000007320000-memory.dmp

Filesize
384KB

Download
memory/448-3-0x0000000005690000-0x0000000005722000-memory.dmp

Filesize
584KB

Download
memory/448-6-0x0000000006720000-0x0000000006C4C000-memory.dmp

Filesize
5.2MB

Download
memory/448-7-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

Download
memory/448-8-0x0000000006660000-0x00000000066D4000-memory.dmp

Filesize
464KB

Download
memory/448-9-0x0000000005C30000-0x0000000005C42000-memory.dmp

Filesize
72KB

Download
memory/448-10-0x0000000007060000-0x0000000007068000-memory.dmp

Filesize
32KB

Download
memory/448-11-0x0000000007070000-0x000000000707C000-memory.dmp

Filesize
48KB

Download
memory/448-4-0x0000000005740000-0x000000000574A000-memory.dmp

Filesize
40KB

Download
memory/448-13-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/448-14-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/448-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/448-55-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/448-1-0x0000000000C50000-0x0000000000CDE000-memory.dmp

Filesize
568KB

Download
memory/448-0-0x000000007444E000-0x000000007444F000-memory.dmp

Filesize
4KB

Download
memory/3408-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3408-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3408-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4932-26-0x0000000005B20000-0x0000000005B86000-memory.dmp

Filesize
408KB

Download
memory/4932-79-0x0000000007360000-0x000000000737E000-memory.dmp

Filesize
120KB

Download
memory/4932-25-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

Download
memory/4932-24-0x00000000052E0000-0x0000000005302000-memory.dmp

Filesize
136KB

Download
memory/4932-39-0x0000000005D90000-0x00000000060E4000-memory.dmp

Filesize
3.3MB

Download
memory/4932-93-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4932-19-0x0000000002870000-0x00000000028A6000-memory.dmp

Filesize
216KB

Download
memory/4932-22-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4932-21-0x00000000054F0000-0x0000000005B18000-memory.dmp

Filesize
6.2MB

Download
memory/4932-20-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4932-56-0x00000000061B0000-0x00000000061CE000-memory.dmp

Filesize
120KB

Download
memory/4932-57-0x0000000006260000-0x00000000062AC000-memory.dmp

Filesize
304KB

Download
memory/4932-59-0x0000000074CE0000-0x0000000074D2C000-memory.dmp

Filesize
304KB

Download
memory/4932-89-0x0000000007820000-0x0000000007828000-memory.dmp

Filesize
32KB

Download
memory/4932-88-0x0000000007840000-0x000000000785A000-memory.dmp

Filesize
104KB

Download
memory/4932-85-0x0000000007700000-0x0000000007711000-memory.dmp

Filesize
68KB

Download
memory/4932-80-0x00000000073C0000-0x0000000007463000-memory.dmp

Filesize
652KB

Download
memory/4932-82-0x0000000007500000-0x000000000751A000-memory.dmp

Filesize
104KB

Download
memory/4932-84-0x0000000007780000-0x0000000007816000-memory.dmp

Filesize
600KB

Download
memory/4932-83-0x0000000007570000-0x000000000757A000-memory.dmp

Filesize
40KB

Download
memory/5052-81-0x0000000007540000-0x0000000007BBA000-memory.dmp

Filesize
6.5MB

Download
memory/5052-32-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/5052-86-0x0000000007130000-0x000000000713E000-memory.dmp

Filesize
56KB

Download
memory/5052-87-0x0000000007140000-0x0000000007154000-memory.dmp

Filesize
80KB

Download
memory/5052-58-0x0000000006B60000-0x0000000006B92000-memory.dmp

Filesize
200KB

Download
memory/5052-60-0x0000000074CE0000-0x0000000074D2C000-memory.dmp

Filesize
304KB

Download
memory/5052-23-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/5052-94-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/5052-38-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download