remcos | c32d6e5170ab29fbfdd30e21944caace6ca4543bd9d07159aac2205d3077cbba

General

Target

ddddd.vmp.exe
Size

863KB
MD5

4fc4b8ab66fb7a44509e1deecab3d29b
SHA1

bec1a36c002293263696493cffc25ca62c24e0d2
SHA256

c32d6e5170ab29fbfdd30e21944caace6ca4543bd9d07159aac2205d3077cbba
SHA512

3be9cabb51a345fc174e41897d90b243ffcadb09bcd47d937194aaf0313c2ef1a32a9c02ffa1ea053574daf6ffd1981a6578c45f120b1a8fa212a5485fbfd307
SSDEEP

24576:c5FnNeSFX4By2BY0Kqx0eyvlXFNtC5OMcQob:mRFX4By2mT/eyvlXFrCob

Score

10^/10

remcos svchost discovery execution rat upx

Malware Config

Extracted

Family

remcos

Botnet

svchost

C2

schedule-lambda.gl.at.ply.gg:52195

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
svchost.exe
copy_folder
svchost
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%WinDir%\System32
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-UZHX9X
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Microsoft Systems inc.
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
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

4504 powershell.exe

pid	process
4504	powershell.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/760-14-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral1/memory/760-18-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral1/memory/760-16-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral1/memory/760-20-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral1/memory/760-22-0x0000000000400000-0x0000000000487000-memory.dmp	upx
behavioral1/memory/760-21-0x0000000000400000-0x0000000000487000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

ddddd.vmp.exepowershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ddddd.vmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ddddd.vmp.exe

pid process

3088 ddddd.vmp.exe
3088 ddddd.vmp.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ddddd.vmp.exe

description pid process

Token: SeDebugPrivilege 3088 ddddd.vmp.exe

pid	process
3088	ddddd.vmp.exe
3088	ddddd.vmp.exe

description	pid	process
Token: SeDebugPrivilege	3088	ddddd.vmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ddddd.vmp.exe

description	pid	process	target process
PID 3088 wrote to memory of 4504	3088	ddddd.vmp.exe	powershell.exe
PID 3088 wrote to memory of 4504	3088	ddddd.vmp.exe	powershell.exe
PID 3088 wrote to memory of 4504	3088	ddddd.vmp.exe	powershell.exe
PID 3088 wrote to memory of 5068	3088	ddddd.vmp.exe	RegAsm.exe
PID 3088 wrote to memory of 5068	3088	ddddd.vmp.exe	RegAsm.exe
PID 3088 wrote to memory of 5068	3088	ddddd.vmp.exe	RegAsm.exe
PID 3088 wrote to memory of 3368	3088	ddddd.vmp.exe	RegAsm.exe
PID 3088 wrote to memory of 3368	3088	ddddd.vmp.exe	RegAsm.exe
PID 3088 wrote to memory of 3368	3088	ddddd.vmp.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\ddddd.vmp.exe
"C:\Users\Admin\AppData\Local\Temp\ddddd.vmp.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name '';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name '' -Value '"C:\Users\Admin\AppData\Roaming\.exe"' -PropertyType 'String'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  PID:4504
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:5068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3368
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:760
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
    3⤵
    PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_foscmgaw.ykd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\install.vbs

Filesize
400B

MD5
ea19cee8ceb7bc86e78d361538cd5711

SHA1
bbca5202ebc7f1e1fa094818066fb53a6a543194

SHA256
c4ea741450ff5d225207e7dd988f8e570399c0f3337553a9961c987f9a0aff1a

SHA512
1d2ba99dba9afcb7b99f011a7f65422d241ca5f028028399f1e57513e33de1a35399d218f49a5a81856a44e2da0feca0bb838df658347c4712bdbdd205f3b2a3

Download Submit
memory/760-14-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/760-21-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/760-22-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/760-20-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/760-16-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/760-18-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/3088-5-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Filesize
584KB

Download
memory/3088-7-0x0000000004E20000-0x0000000004E2A000-memory.dmp

Filesize
40KB

Download
memory/3088-10-0x0000000004E40000-0x0000000004E82000-memory.dmp

Filesize
264KB

Download
memory/3088-11-0x0000000005120000-0x0000000005162000-memory.dmp

Filesize
264KB

Download
memory/3088-12-0x0000000005160000-0x000000000517E000-memory.dmp

Filesize
120KB

Download
memory/3088-8-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

Filesize
4KB

Download
memory/3088-0-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

Filesize
4KB

Download
memory/3088-9-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3088-6-0x0000000004F40000-0x0000000004FB6000-memory.dmp

Filesize
472KB

Download
memory/3088-28-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3088-4-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/3088-3-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3088-2-0x00000000045E0000-0x00000000045E1000-memory.dmp

Filesize
4KB

Download
memory/3088-1-0x0000000000010000-0x000000000019C000-memory.dmp

Filesize
1.5MB

Download
memory/4504-17-0x00000000027B0000-0x00000000027E6000-memory.dmp

Filesize
216KB

Download
memory/4504-27-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4504-29-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4504-39-0x0000000005A70000-0x0000000005AD6000-memory.dmp

Filesize
408KB

Download
memory/4504-38-0x0000000005A00000-0x0000000005A66000-memory.dmp

Filesize
408KB

Download
memory/4504-37-0x0000000005960000-0x0000000005982000-memory.dmp

Filesize
136KB

Download
memory/4504-26-0x0000000005290000-0x00000000058B8000-memory.dmp

Filesize
6.2MB

Download
memory/4504-25-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4504-45-0x0000000005CE0000-0x0000000006034000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads