modiloader | e53f9093901d793921b102b1cae2d87b2cf71c70e6995d2baabdb17190d33266

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 01:57

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General

Target
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe
Size 1.6MB
Sample240405-cdbnmahh46
SHA256 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
MD5 eac95a52ac634d3ea75387201a2c749c
SHA1 e808ef56d1b382b1e01e16af299a548cb038f52c
SHA512 6ae5883a1cb8aaa42abc0c8bbfeba2715086ec39ad2028937600b2c925b3093070a72531e4e5abf2d4dafb00bcbab8c2fd5f97aae590dd87645befc27701d346
SSDEEP 49152:ay6imwGhfj4GBT2z95Zw/L+gwnzFnwyuPTh:azimw4f8iSuD+g
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader remcos remotehost persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:45671
127.0.0.1:55677
192.3.101.8:55677
192.3.101.8:45671

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-2P1XPK
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral2/memory/4500-2-0x0000000002AD0000-0x0000000003AD0000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
3368	1416128.exe

Loads dropped DLL 1 IoCs

pid	Process
3368	1416128.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Dkesuvii = "C:\\Users\\Public\\Dkesuvii.url"	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3564	powershell.exe
3564	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3564	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 4528	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	97
PID 4500 wrote to memory of 4528	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	97
PID 4500 wrote to memory of 4528	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	97
PID 4500 wrote to memory of 868	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	98
PID 4500 wrote to memory of 868	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	98
PID 4500 wrote to memory of 868	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	98
PID 4500 wrote to memory of 3492	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	101
PID 4500 wrote to memory of 3492	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	101
PID 4500 wrote to memory of 3492	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	101
PID 3492 wrote to memory of 3368	3492	cmd.exe	103
PID 3492 wrote to memory of 3368	3492	cmd.exe	103
PID 3368 wrote to memory of 4896	3368	1416128.exe	104
PID 3368 wrote to memory of 4896	3368	1416128.exe	104
PID 4896 wrote to memory of 1936	4896	cmd.exe	106
PID 4896 wrote to memory of 1936	4896	cmd.exe	106
PID 1936 wrote to memory of 3564	1936	cmd.exe	108
PID 1936 wrote to memory of 3564	1936	cmd.exe	108
PID 4500 wrote to memory of 4856	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	109
PID 4500 wrote to memory of 4856	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	109
PID 4500 wrote to memory of 4856	4500	f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe	109

C:\Users\Admin\AppData\Local\Temp\f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe
"C:\Users\Admin\AppData\Local\Temp\f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\cmd.exe
  cmd /c mkdir "\\?\C:\Windows "
  2⤵
  PID:4528
- C:\Windows\SysWOW64\cmd.exe
  cmd /c mkdir "\\?\C:\Windows \System32"
  2⤵
  PID:868
- C:\Windows\SysWOW64\cmd.exe
  cmd /c "C:\Windows \System32\1416128.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3492
- - C:\Windows \System32\1416128.exe
    "C:\Windows \System32\1416128.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:3368
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4896
    - - C:\Windows\system32\cmd.exe
        
        cmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1936
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3564
- C:\Windows\SysWOW64\extrac32.exe
  C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe C:\\Users\\Public\\Libraries\\Dkesuvii.PIF
  2⤵
  PID:4856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

logs.dat

Path C:\ProgramData\remcos\logs.dat
Size 144B
SHA256 c479f8851233bd9542da41a88c8eb9bb3e9b4544cf52031871548006eab1c932
MD5 f16d1905a33766b537daef7d741ba23f
SHA1 e6fef0673ca9d856990ee9f3e1d8841e73138aed
SHA512 a63b3be5606bd53b343f25e05028bee79b25c2a5a10d295e5ad72e6602dd309bcbf19b976a9fb2428eaea2e23316509c6762bd148add5aa12ecc60a682f7f2c3
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_0elscgiq.ulq.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0elscgiq.ulq.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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1416128.exe

Path C:\Windows \System32\1416128.exe
Size 128KB
SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
MD5 231ce1e1d7d98b44371ffff407d68b59
SHA1 25510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA512 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
SSDEEP 3072:zar2xXibKcf5K67+k02XbFbosspwUUgcR:Nibl7+k02XZb9UA
MD5 SHA1 SHA512 SSDEEP

Submit Download

netutils.dll

Path C:\Windows \System32\netutils.dll
Size 112KB
SHA256 50573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb
MD5 8541304aadba4ae8620bb2699f6e0437
SHA1 e0b28a6ecd32d3789433217364c1006de9892df8
SHA512 c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455
SSDEEP 1536:yrWKID3z1yOjXtZqmsGyhvI5jduvd9a8yCl7MbiRVRpz5u:yrWt/LZq3hvUuvd9a8BRpz5u
MD5 SHA1 SHA512 SSDEEP

Submit Download

KDECO.bat

Path C:\windows \system32\KDECO.bat
Size 11KB
SHA256 a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9
MD5 c545650595b479c81ad6b9d8882aae39
SHA1 7a98aa2e6eee23b3c1bba876955d525bc618b3f0
SHA512 85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3
SSDEEP 192:UPNoaJSjPMK2jxkXDmZevmhmpd/mGq5LnRWF7NpL29QeQoGAhLNTbz4UgHCHDQSq:KNjsjUKwxCiZevmgpd/jcnRu7imoG8Le
MD5 SHA1 SHA512 SSDEEP

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memory/3368-15-0x00000000613C0000-0x00000000613E3000-memory.dmp

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memory/3564-28-0x000002041E810000-0x000002041E820000-memory.dmp

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memory/3564-32-0x00007FFC5AF40000-0x00007FFC5BA01000-memory.dmp

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memory/3564-29-0x000002041E810000-0x000002041E820000-memory.dmp

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memory/3564-22-0x000002041F0D0000-0x000002041F0F2000-memory.dmp

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memory/3564-23-0x00007FFC5AF40000-0x00007FFC5BA01000-memory.dmp

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memory/4500-58-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-69-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-2-0x0000000002AD0000-0x0000000003AD0000-memory.dmp

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memory/4500-38-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-41-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-42-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-43-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-44-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-46-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-49-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-52-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-54-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-55-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-0-0x0000000000A60000-0x0000000000A61000-memory.dmp

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memory/4500-60-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-64-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-65-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-66-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-1-0x0000000002AD0000-0x0000000003AD0000-memory.dmp

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memory/4500-4-0x0000000000400000-0x00000000005AF000-memory.dmp

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memory/4500-71-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-75-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-76-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-78-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-80-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-83-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-86-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-87-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-89-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-91-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-95-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-97-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-98-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-100-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-102-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-106-0x0000000015440000-0x0000000016440000-memory.dmp

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memory/4500-108-0x0000000015440000-0x0000000016440000-memory.dmp

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