Malware Analysis Report

2025-06-16 01:18

Sample ID 231205-vfb2aadc25
Target FADTQWERT.bat
SHA256 fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd
Tags
remcos remotehost rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd

Threat Level: Known bad

The file FADTQWERT.bat was found to be: Known bad.

Malicious Activity Summary

remcos remotehost rat

Remcos

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-05 16:55

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-05 16:55

Reported

2023-12-05 16:58

Platform

win7-20231201-en

Max time kernel

16s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

Signatures

Remcos

rat remcos

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2104 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2104 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\schtasks.exe
PID 2104 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\schtasks.exe
PID 2104 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\schtasks.exe
PID 2104 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

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\FADTQWERT.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GwdCcjuxCiQA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp55AE.tmp"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GwdCcjuxCiQA.exe"

C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

Network

Country Destination Domain Proto
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp

Files

memory/2104-1-0x0000000074110000-0x00000000747FE000-memory.dmp

memory/2104-0-0x00000000013B0000-0x00000000014BE000-memory.dmp

memory/2104-2-0x0000000004C90000-0x0000000004CD0000-memory.dmp

memory/2104-3-0x0000000000500000-0x0000000000518000-memory.dmp

memory/2104-5-0x0000000000670000-0x000000000067A000-memory.dmp

memory/2104-4-0x0000000000520000-0x0000000000528000-memory.dmp

memory/2104-6-0x0000000005420000-0x00000000054D8000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp55AE.tmp

MD5 d2ca338bc35825f69853c772d1ebdcb8
SHA1 6b9e575f40eae150c4add0a491679222767a4715
SHA256 a08b898ef4f47fe2b1bfd76ef4c06fc9ec5b821155dd011a76c9b29a51d26db9
SHA512 90eb34dfda92385f8b353bc1341ccf636bb86401b31514c722c583db45127f33e99be8885218b6bc087a4b6831b9f27f46125bde3cf9e982f120409f0255e6f0

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\2D3MAQ9KU7G3JWBGHFXC.temp

MD5 32fbf21f902c92fbca62af1528f8e573
SHA1 d95293dccf8c355b3b9c0136ee83d587fa6a94d1
SHA256 a38cf444ce54f3cc77206e65f971ab9a6194592a708b79496d2d7087afd92d53
SHA512 b9a8c888062ce8884f9bb1231b228e95a4c984e2de76e144875d622f7a260150c8b7f13579c70a06f90de2aa6a83dff342742bc0c66dad079a81306e6ce80b14

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

MD5 32fbf21f902c92fbca62af1528f8e573
SHA1 d95293dccf8c355b3b9c0136ee83d587fa6a94d1
SHA256 a38cf444ce54f3cc77206e65f971ab9a6194592a708b79496d2d7087afd92d53
SHA512 b9a8c888062ce8884f9bb1231b228e95a4c984e2de76e144875d622f7a260150c8b7f13579c70a06f90de2aa6a83dff342742bc0c66dad079a81306e6ce80b14

memory/2608-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2608-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2104-32-0x0000000074110000-0x00000000747FE000-memory.dmp

memory/2608-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2220-38-0x000000006EC60000-0x000000006F20B000-memory.dmp

memory/2608-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2728-41-0x0000000002A40000-0x0000000002A80000-memory.dmp

memory/2220-40-0x0000000002D50000-0x0000000002D90000-memory.dmp

memory/2728-39-0x000000006EC60000-0x000000006F20B000-memory.dmp

memory/2220-42-0x000000006EC60000-0x000000006F20B000-memory.dmp

memory/2728-43-0x000000006EC60000-0x000000006F20B000-memory.dmp

memory/2728-45-0x0000000002A40000-0x0000000002A80000-memory.dmp

memory/2220-44-0x0000000002D50000-0x0000000002D90000-memory.dmp

memory/2220-47-0x000000006EC60000-0x000000006F20B000-memory.dmp

memory/2728-46-0x000000006EC60000-0x000000006F20B000-memory.dmp

memory/2608-52-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-53-0x0000000000400000-0x0000000000482000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 b2d7b80c3f677b5ee18bc4b00fbef8f4
SHA1 94e553e152c8d1598e3cd343d3d2d5c286c40f64
SHA256 1a0d3c8554b34871476e8c08ccb85f642b9d828f19e6aa4bbbc6619f6cb99c33
SHA512 b67346fd113d84fb4456f1078a670684ddcc7e076ff73c9f25a1c293cb2cc799bf6efecd28e7faf52227578aadc640a84c4464f3108dc333cb7f6afc14d1f8c5

memory/2608-58-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-59-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-65-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-66-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-71-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-72-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-77-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-79-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-84-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2608-85-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-05 16:55

Reported

2023-12-05 16:58

Platform

win10v2004-20231130-en

Max time kernel

17s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

Signatures

Remcos

rat remcos

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GwdCcjuxCiQA.exe"

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\FADTQWERT.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GwdCcjuxCiQA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8944.tmp"

C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe

"C:\Users\Admin\AppData\Local\Temp\FADTQWERT.exe"

Network

Country Destination Domain Proto
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp
US 107.175.229.139:8087 tcp

Files

memory/4368-0-0x0000000000C90000-0x0000000000D9E000-memory.dmp

memory/4368-1-0x0000000074DE0000-0x0000000075590000-memory.dmp

memory/4368-2-0x0000000005CB0000-0x0000000006254000-memory.dmp

memory/4368-3-0x00000000057A0000-0x0000000005832000-memory.dmp

memory/4368-4-0x0000000005970000-0x0000000005980000-memory.dmp

memory/4368-5-0x0000000005790000-0x000000000579A000-memory.dmp

memory/4368-6-0x00000000059F0000-0x0000000005A08000-memory.dmp

memory/4368-8-0x0000000005A40000-0x0000000005A4A000-memory.dmp

memory/4368-7-0x0000000005A20000-0x0000000005A28000-memory.dmp

memory/4368-10-0x0000000006F10000-0x0000000006FAC000-memory.dmp

memory/4368-9-0x00000000071F0000-0x00000000072A8000-memory.dmp

memory/2324-15-0x0000000002930000-0x0000000002966000-memory.dmp

memory/2324-18-0x0000000004F10000-0x0000000004F20000-memory.dmp

memory/2324-16-0x0000000005550000-0x0000000005B78000-memory.dmp

memory/4368-19-0x0000000074DE0000-0x0000000075590000-memory.dmp

memory/4532-21-0x00000000029E0000-0x00000000029F0000-memory.dmp

memory/2324-22-0x0000000005260000-0x0000000005282000-memory.dmp

memory/4532-24-0x0000000074DE0000-0x0000000075590000-memory.dmp

memory/4368-25-0x0000000005970000-0x0000000005980000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rb4p1ygb.gm5.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2324-33-0x0000000005BF0000-0x0000000005C56000-memory.dmp

memory/4892-47-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2324-48-0x0000000005D60000-0x00000000060B4000-memory.dmp

memory/4892-52-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-51-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4368-53-0x0000000074DE0000-0x0000000075590000-memory.dmp

memory/4892-56-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-55-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-57-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-50-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-46-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2324-26-0x0000000005B80000-0x0000000005BE6000-memory.dmp

memory/4532-58-0x0000000006050000-0x000000000606E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp8944.tmp

MD5 70b84ba6c6e4a44cb6bcd3e049f2fe12
SHA1 41dc7463a577907db270e80dcfd14c00a3143819
SHA256 7a2916571e6806101da8bb72083c6202d4463d788ee42711752fafc625d1b68e
SHA512 152f6f085661199ffe6a1e7353d07e047597b877d9a9948496cdb3a9bd3b12eb4e51983fe796cbe6ecd548c967b9cf6c3e977762ec3bfe3f0ad756ababea0f17

memory/2324-20-0x0000000004F10000-0x0000000004F20000-memory.dmp

memory/2324-17-0x0000000074DE0000-0x0000000075590000-memory.dmp

memory/2324-59-0x00000000065C0000-0x000000000660C000-memory.dmp

memory/4532-62-0x0000000073890000-0x00000000738DC000-memory.dmp

memory/4532-73-0x00000000066C0000-0x00000000066DE000-memory.dmp

memory/4532-75-0x00000000029E0000-0x00000000029F0000-memory.dmp

memory/2324-63-0x000000007F7D0000-0x000000007F7E0000-memory.dmp

memory/2324-86-0x0000000004F10000-0x0000000004F20000-memory.dmp

memory/4532-77-0x0000000007180000-0x0000000007223000-memory.dmp

memory/2324-74-0x0000000073890000-0x00000000738DC000-memory.dmp

memory/2324-61-0x00000000067F0000-0x0000000006822000-memory.dmp

memory/4532-60-0x000000007F6F0000-0x000000007F700000-memory.dmp

memory/2324-88-0x0000000007B90000-0x000000000820A000-memory.dmp

memory/4532-87-0x00000000074B0000-0x00000000074CA000-memory.dmp

memory/2324-89-0x00000000075C0000-0x00000000075CA000-memory.dmp

memory/2324-90-0x00000000077D0000-0x0000000007866000-memory.dmp

memory/4532-91-0x00000000076B0000-0x00000000076C1000-memory.dmp

memory/4532-93-0x00000000076F0000-0x0000000007704000-memory.dmp

memory/4532-94-0x00000000077F0000-0x000000000780A000-memory.dmp

memory/4532-95-0x00000000077D0000-0x00000000077D8000-memory.dmp

memory/2324-92-0x0000000007780000-0x000000000778E000-memory.dmp

memory/2324-102-0x0000000074DE0000-0x0000000075590000-memory.dmp

memory/4532-101-0x0000000074DE0000-0x0000000075590000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

MD5 3d086a433708053f9bf9523e1d87a4e8
SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 9baaf8bce3f00dbc0bf93e0f0253d425
SHA1 f424f1aa4135434a32845cd533420ef5f3b488be
SHA256 49eb0c2f3cf3198c1f8f6db0481cefecb98818eafe77e50e4dbd60706abb52b0
SHA512 2939ace6cc1f64d03dec009af5e25c2378a9ef9957fc318ceead74ee7d5d32d90391f6c0a592028159c37fb613b4e49a615de4e58243c51128b7c19e5ddbd27b

memory/4892-106-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-108-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-109-0x0000000000400000-0x0000000000482000-memory.dmp

C:\ProgramData\remcos\logs.dat

MD5 40d326cdc38e906f1b80663e44d5b3a5
SHA1 f7cebaa62119486c91b75bd17a7e67dbd83ed590
SHA256 50cdf89c127016081a57a896fc41e5644d48943d8c65d3530d9960ac815cad94
SHA512 d30e9613137785dae96fc2959ce2bfbf2f3477b4b1d485bbc38a147053f2ee9034b163e8e053e30fba9601cfb906a2299272293b0264cb392a3203b492ed530c

memory/4892-114-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-115-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-121-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-122-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-127-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-128-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-133-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-134-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4892-140-0x0000000000400000-0x0000000000482000-memory.dmp