remcos | f05ac4628bc3cc7da752894e47479c2f8532ed5c485943b7abb680a79d4dba9c

Analysis

max time kernel
150s
max time network
138s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12-12-2023 13:58

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General

Target

INVB0987678000090000.BAT.exe
Size

904KB
MD5

4b08b3e2d346591d2f805256c63a8875
SHA1

8fb4067bf05ffeb0c16b9ac9ea38507889ca07b0
SHA256

f05ac4628bc3cc7da752894e47479c2f8532ed5c485943b7abb680a79d4dba9c
SHA512

ece878beb8a207d08a8978f1978548e7f32c1ec6ca36647aa5549b99fcc587bc2e79f999e5dd6f3d32f1f8370ccff98f588e03baa1a8bcba3201ae997f71ace3
SSDEEP

24576:7pItSAdsBeO/ECXs95roy+qdi3E4RPrgjizt:9tpekEGs9DdEkjiz

Score

10^/10

remcos zgrat remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

107.175.229.139:8087

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-IZFV1M
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Detect ZGRat V1 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1960-3-0x0000000000A50000-0x0000000000A68000-memory.dmp	family_zgrat_v1

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Suspicious use of SetThreadContext 1 IoCs

Processes:

INVB0987678000090000.BAT.exe

description pid process target process

PID 1960 set thread context of 1920 1960 INVB0987678000090000.BAT.exe INVB0987678000090000.BAT.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

2672 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

INVB0987678000090000.BAT.exepowershell.exepowershell.exe

pid process

1960 INVB0987678000090000.BAT.exe
1960 INVB0987678000090000.BAT.exe
2596 powershell.exe
1344 powershell.exe

description	pid	process	target process
PID 1960 set thread context of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe

pid	process
2672	schtasks.exe

pid	process
1960	INVB0987678000090000.BAT.exe
1960	INVB0987678000090000.BAT.exe
2596	powershell.exe
1344	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

INVB0987678000090000.BAT.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1960	INVB0987678000090000.BAT.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	1344	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

INVB0987678000090000.BAT.exe

pid process

1920 INVB0987678000090000.BAT.exe

pid	process
1920	INVB0987678000090000.BAT.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

INVB0987678000090000.BAT.exe

description	pid	process	target process
PID 1960 wrote to memory of 1344	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 1344	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 1344	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 1344	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 2596	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 2596	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 2596	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 2596	1960	INVB0987678000090000.BAT.exe	powershell.exe
PID 1960 wrote to memory of 2672	1960	INVB0987678000090000.BAT.exe	schtasks.exe
PID 1960 wrote to memory of 2672	1960	INVB0987678000090000.BAT.exe	schtasks.exe
PID 1960 wrote to memory of 2672	1960	INVB0987678000090000.BAT.exe	schtasks.exe
PID 1960 wrote to memory of 2672	1960	INVB0987678000090000.BAT.exe	schtasks.exe
PID 1960 wrote to memory of 2752	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 2752	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 2752	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 2752	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe
PID 1960 wrote to memory of 1920	1960	INVB0987678000090000.BAT.exe	INVB0987678000090000.BAT.exe

C:\Users\Admin\AppData\Local\Temp\INVB0987678000090000.BAT.exe
"C:\Users\Admin\AppData\Local\Temp\INVB0987678000090000.BAT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960

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\INVB0987678000090000.BAT.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1344

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\okDinu.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2596

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\okDinu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41A2.tmp"
2⤵
- Creates scheduled task(s)
PID:2672

C:\Users\Admin\AppData\Local\Temp\INVB0987678000090000.BAT.exe
"C:\Users\Admin\AppData\Local\Temp\INVB0987678000090000.BAT.exe"
2⤵
PID:2752

C:\Users\Admin\AppData\Local\Temp\INVB0987678000090000.BAT.exe
"C:\Users\Admin\AppData\Local\Temp\INVB0987678000090000.BAT.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1920

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

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
43d697747400cc6374b12573cd50a0bb

SHA1
2a7ba817cc52d279732c91cffb3fb3842fe2ff77

SHA256
5658aa4576570bc66277ecedacd7c1cb766d21a48dfe4ff40119264d5d2adef6

SHA512
9063fabcf70bdd6b12acd8a7d138f10566f386c99f1601bbb736ec32cbf44047936fce306489f73ee0213be7799db9408ddf9f093e758e4448d938a1192f94cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp41A2.tmp

Filesize
1KB

MD5
adf89e7c89292c3e670754824691fded

SHA1
69b7dddeaae0c179a9ac741c9b8fa07bf317bf9d

SHA256
d80dd99e3089724632a3d18e360a309676b20698c61d738d30eb89cb9be45172

SHA512
67809d24f8a636c12790407c1f2a5c2855b888e256edcf642b6567e17110c5a9987d37550e303d2726d2e06bd0e0943336212af0d07e5f2b7848d558064be49a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\DGU36CUU83B8MVTI1QMD.temp

Filesize
7KB

MD5
9221182824cd1e7ee6407571d6e34c21

SHA1
f03d885f8e813138933de1b8644ee95f05f2b23e

SHA256
9cd17ab8d278973af682eeb185be6e267a04bb006bb419bb2380e8d6a8ffd53b

SHA512
0e680100dc9beaee4554c6e10c52bd072193333d9723ac8d408e39db340c54f8219ba5f8656f9ba6a01fb39d9f3327af476574361ec8aa8d3e4f740241f59465

Download Submit
memory/1344-39-0x00000000028F0000-0x0000000002930000-memory.dmp

Filesize
256KB

Download
memory/1344-37-0x000000006ECB0000-0x000000006F25B000-memory.dmp

Filesize
5.7MB

Download
memory/1344-44-0x00000000028F0000-0x0000000002930000-memory.dmp

Filesize
256KB

Download
memory/1344-52-0x000000006ECB0000-0x000000006F25B000-memory.dmp

Filesize
5.7MB

Download
memory/1344-46-0x00000000028F0000-0x0000000002930000-memory.dmp

Filesize
256KB

Download
memory/1344-43-0x000000006ECB0000-0x000000006F25B000-memory.dmp

Filesize
5.7MB

Download
memory/1920-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1920-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1920-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1960-4-0x00000000009F0000-0x00000000009F8000-memory.dmp

Filesize
32KB

Download
memory/1960-0-0x0000000001020000-0x0000000001108000-memory.dmp

Filesize
928KB

Download
memory/1960-35-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-1-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/1960-3-0x0000000000A50000-0x0000000000A68000-memory.dmp

Filesize
96KB

Download
memory/1960-6-0x0000000005AA0000-0x0000000005B58000-memory.dmp

Filesize
736KB

Download
memory/1960-2-0x0000000004C10000-0x0000000004C50000-memory.dmp

Filesize
256KB

Download
memory/1960-5-0x0000000000A70000-0x0000000000A7A000-memory.dmp

Filesize
40KB

Download
memory/2596-51-0x000000006ECB0000-0x000000006F25B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-47-0x0000000001D30000-0x0000000001D70000-memory.dmp

Filesize
256KB

Download
memory/2596-49-0x0000000001D30000-0x0000000001D70000-memory.dmp

Filesize
256KB

Download
memory/2596-41-0x000000006ECB0000-0x000000006F25B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-34-0x000000006ECB0000-0x000000006F25B000-memory.dmp

Filesize
5.7MB

Download
memory/2596-38-0x0000000001D30000-0x0000000001D70000-memory.dmp

Filesize
256KB

Download