remcos | e25e7e373276c2ee56849be99f4a14a420fc85ad8d35ee13c2a3574524090af3

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-11-2024 18:27

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General

Target

8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe
Size

769KB
MD5

936079e96cd90d0029f53f772370a11d
SHA1

daeb253c32cdc076b4e42b8e51eda74ee9865639
SHA256

e25e7e373276c2ee56849be99f4a14a420fc85ad8d35ee13c2a3574524090af3
SHA512

4df164c42b1a09a6375438d13d04f5ee7a3fa0fc0aa43eb92dc602e1597fb28a31a3a62d99cce4d252fb2e88aa98cd29413073f1613630d8d86870d95f027361
SSDEEP

24576:SMwhYwlRZjfxAyExC8Zx0PARxFWfcFqal/F4X5ZiN:SMwhNlR5xAFZq+WfQiX5u

Score

10^/10

remcos .9.24 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

.9.24

moniepont.dynamic-dns.net:3791

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-BPYLMJ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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
Remcos family
remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4464	powershell.exe

Blocklisted process makes network request 7 IoCs

flow	pid	Process
22	3256	msiexec.exe
25	3256	msiexec.exe
39	3256	msiexec.exe
44	3256	msiexec.exe
51	3256	msiexec.exe
53	3256	msiexec.exe
54	3256	msiexec.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3256	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4464	powershell.exe
3256	msiexec.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\genfortolkende.ini	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\Kdebrker\Sttteforeningen.man	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4464	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeIncreaseQuotaPrivilege	4464	powershell.exe
Token: SeSecurityPrivilege	4464	powershell.exe
Token: SeTakeOwnershipPrivilege	4464	powershell.exe
Token: SeLoadDriverPrivilege	4464	powershell.exe
Token: SeSystemProfilePrivilege	4464	powershell.exe
Token: SeSystemtimePrivilege	4464	powershell.exe
Token: SeProfSingleProcessPrivilege	4464	powershell.exe
Token: SeIncBasePriorityPrivilege	4464	powershell.exe
Token: SeCreatePagefilePrivilege	4464	powershell.exe
Token: SeBackupPrivilege	4464	powershell.exe
Token: SeRestorePrivilege	4464	powershell.exe
Token: SeShutdownPrivilege	4464	powershell.exe
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeSystemEnvironmentPrivilege	4464	powershell.exe
Token: SeRemoteShutdownPrivilege	4464	powershell.exe
Token: SeUndockPrivilege	4464	powershell.exe
Token: SeManageVolumePrivilege	4464	powershell.exe
Token: 33	4464	powershell.exe
Token: 34	4464	powershell.exe
Token: 35	4464	powershell.exe
Token: 36	4464	powershell.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3936 wrote to memory of 4464	3936	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe	84
PID 3936 wrote to memory of 4464	3936	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe	84
PID 3936 wrote to memory of 4464	3936	8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe	84
PID 4464 wrote to memory of 3256	4464	powershell.exe	98
PID 4464 wrote to memory of 3256	4464	powershell.exe	98
PID 4464 wrote to memory of 3256	4464	powershell.exe	98
PID 4464 wrote to memory of 3256	4464	powershell.exe	98

C:\Users\Admin\AppData\Local\Temp\8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe
"C:\Users\Admin\AppData\Local\Temp\8b1fcad83099e1daf3accdb39f68a0bd696b053aadc8472e9008fd027a390404.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Linenette=Get-Content -Raw 'C:\Users\Admin\AppData\Local\Temp\haandbog\Tanagridae.Und';$Istandsat=$Linenette.SubString(56161,3);.$Istandsat($Linenette)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4464
- - C:\Windows\SysWOW64\msiexec.exe
    "C:\Windows\SysWOW64\msiexec.exe"
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    PID:3256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_alwfj32c.w2b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\haandbog\Tanagridae.Und

Filesize
54KB

MD5
5cdf5b58154999b80a32463e8a0f0c22

SHA1
03b1039573b18a3b4041b976b35116bbadf9975b

SHA256
a288fd3f4f312e6764564eea8fe56bdd1abcbfc4c995e2c2c5d0d784bc8f08da

SHA512
4ee3143f95ea7e412e4aa686d6b7da42af52203551f9bec46f252cba19f6ff030a3c3fd2170ae7f7fe6ebac8163df6a226a113106d57b6b090b507b8110808c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\haandbog\Villagery.Pho

Filesize
308KB

MD5
5b9522442ca42d48c03132b46cffce3f

SHA1
a0d5f91f3fdc3e660e5513e0b51e7b5ef18b49b9

SHA256
d33a6d69c2c7cd45b0289c802f47302ca9b6af9a98efa1522abbf62f9d089679

SHA512
1977cde279e0a9668ecfbf17b26a0b858d98b2c3591a339dabdd5c966519365fea465f193d2e8267ef35a5bde0ee98ab53b4d55ef2ed8a6641b53b631ed74c29

Download Submit
C:\Users\Admin\AppData\Local\orts.lnk

Filesize
1KB

MD5
1e1bef69f6339ea740335ecfb0cd1b61

SHA1
3279a04e17a07bb927a5cd371179e7dce3dc8df6

SHA256
78848c5cfe3a4af9dd67afde510b7ba4cfc9c3051e23a96daf1c8869f335d61d

SHA512
fbfe13937a82109a82d8f3a0d2a703171028440ad48cdeb4941c411d0c94b0f2d1de9f1080ae7b76a1d5d754716753588e89bad764e244217959fb703b7b1809

Download Submit
memory/3256-201-0x0000000001010000-0x0000000002264000-memory.dmp

Filesize
18.3MB

Download
memory/4464-168-0x0000000007890000-0x00000000078C2000-memory.dmp

Filesize
200KB

Download
memory/4464-182-0x00000000078E0000-0x0000000007983000-memory.dmp

Filesize
652KB

Download
memory/4464-148-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/4464-149-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/4464-146-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-155-0x0000000005D70000-0x00000000060C4000-memory.dmp

Filesize
3.3MB

Download
memory/4464-160-0x0000000006460000-0x000000000647E000-memory.dmp

Filesize
120KB

Download
memory/4464-161-0x0000000006480000-0x00000000064CC000-memory.dmp

Filesize
304KB

Download
memory/4464-162-0x00000000069A0000-0x0000000006A36000-memory.dmp

Filesize
600KB

Download
memory/4464-163-0x0000000006950000-0x000000000696A000-memory.dmp

Filesize
104KB

Download
memory/4464-164-0x0000000006A40000-0x0000000006A62000-memory.dmp

Filesize
136KB

Download
memory/4464-165-0x0000000007AB0000-0x0000000008054000-memory.dmp

Filesize
5.6MB

Download
memory/4464-144-0x0000000005550000-0x0000000005B78000-memory.dmp

Filesize
6.2MB

Download
memory/4464-167-0x00000000086E0000-0x0000000008D5A000-memory.dmp

Filesize
6.5MB

Download
memory/4464-169-0x000000006FBA0000-0x000000006FBEC000-memory.dmp

Filesize
304KB

Download
memory/4464-145-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-180-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-181-0x0000000007870000-0x000000000788E000-memory.dmp

Filesize
120KB

Download
memory/4464-170-0x0000000070320000-0x0000000070674000-memory.dmp

Filesize
3.3MB

Download
memory/4464-147-0x0000000005410000-0x0000000005432000-memory.dmp

Filesize
136KB

Download
memory/4464-183-0x0000000007A00000-0x0000000007A0A000-memory.dmp

Filesize
40KB

Download
memory/4464-184-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-185-0x0000000007A40000-0x0000000007A6A000-memory.dmp

Filesize
168KB

Download
memory/4464-186-0x0000000007A70000-0x0000000007A94000-memory.dmp

Filesize
144KB

Download
memory/4464-187-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-189-0x000000007371E000-0x000000007371F000-memory.dmp

Filesize
4KB

Download
memory/4464-190-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-191-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-143-0x0000000002DF0000-0x0000000002E26000-memory.dmp

Filesize
216KB

Download
memory/4464-193-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-195-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-194-0x0000000008D60000-0x000000000A53F000-memory.dmp

Filesize
23.9MB

Download
memory/4464-196-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-197-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-198-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-199-0x0000000073710000-0x0000000073EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-142-0x000000007371E000-0x000000007371F000-memory.dmp

Filesize
4KB

Download