modiloader | 67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518

General

Target

67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe
Size

1.6MB
MD5

488f8d9de535475e4a901c033199ea0c
SHA1

3bda45e062fdc55823d9ceb71d0575df1e6ffd9e
SHA256

67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518
SHA512

58c0bb1af9b495f4c20a518d158f35a96d3f51dbb026b7fc40572a212dd7f05221f11efa995ef10199d32f970a308ea25407b77d307eeed06bd91b897ddbc4a4
SSDEEP

49152:ay6imwGhfj4GBT2z95Zw/L+gwnzBnwyuPTh:azimw4f8iSuD+g

Score

10^/10

modiloader remcos remotehost persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:47212

officerem.duckdns.org:47212

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-I8N3XG
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

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 16 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3084-38-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-40-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-42-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-43-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-44-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-45-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-46-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-47-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-48-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-52-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-53-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-63-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-74-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-75-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-96-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3084-97-0x0000000015420000-0x0000000016420000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3084-2-0x00000000029A0000-0x00000000039A0000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

3818416.exe

pid process

4212 3818416.exe
Loads dropped DLL 1 IoCs

Processes:

3818416.exe

pid process

4212 3818416.exe

pid	process
4212	3818416.exe

pid	process
4212	3818416.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Uajcyryw = "C:\\Users\\Public\\Uajcyryw.url"	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 19 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4172 powershell.exe
4172 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4172 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe

pid process

3084 67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe

description	flow	ioc
HTTP User-Agent header	19	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
4172	powershell.exe
4172	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4172	powershell.exe

pid	process
3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.execmd.exe3818416.execmd.execmd.exe

description	pid	process	target process
PID 3084 wrote to memory of 1816	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 1816	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 1816	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 2004	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 2004	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 2004	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 1516	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 1516	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 3084 wrote to memory of 1516	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	cmd.exe
PID 1516 wrote to memory of 4212	1516	cmd.exe	3818416.exe
PID 1516 wrote to memory of 4212	1516	cmd.exe	3818416.exe
PID 4212 wrote to memory of 1416	4212	3818416.exe	cmd.exe
PID 4212 wrote to memory of 1416	4212	3818416.exe	cmd.exe
PID 1416 wrote to memory of 5104	1416	cmd.exe	cmd.exe
PID 1416 wrote to memory of 5104	1416	cmd.exe	cmd.exe
PID 5104 wrote to memory of 4172	5104	cmd.exe	powershell.exe
PID 5104 wrote to memory of 4172	5104	cmd.exe	powershell.exe
PID 3084 wrote to memory of 3396	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	extrac32.exe
PID 3084 wrote to memory of 3396	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	extrac32.exe
PID 3084 wrote to memory of 3396	3084	67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe	extrac32.exe

C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe
"C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Windows\SysWOW64\cmd.exe
  cmd /c mkdir "\\?\C:\Windows "
  2⤵
  PID:1816
- C:\Windows\SysWOW64\cmd.exe
  cmd /c mkdir "\\?\C:\Windows \System32"
  2⤵
  PID:2004
- C:\Windows\SysWOW64\cmd.exe
  cmd /c "C:\Windows \System32\3818416.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Windows \System32\3818416.exe
    "C:\Windows \System32\3818416.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:4212
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1416
    - - 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:5104
      - 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:4172
- C:\Windows\SysWOW64\extrac32.exe
  C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\67f61357cf2d027bb18929c72aae2e8427ed0ddb7c16e4265855b8d827d95518.exe C:\\Users\\Public\\Libraries\\Uajcyryw.PIF
  2⤵
  PID:3396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
182376cdc01476d461d7a4662d543cbe

SHA1
7a06e5f36acf182082086f4f03736381da60e905

SHA256
fbe7645e1623139d0c8e65a7c30f30b7e5f659f1ee8a2369e13084905e765aa8

SHA512
6714d196312e921bcb097833d83341b3816df1d7363f228c79572a4cb91cb8cddddd5c8b636b138bed632c05438fb6fcc674d0ce7a2a07e3040687c081c0eba4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_riwxxjtb.j0v.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows \System32\3818416.exe

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Windows \System32\netutils.dll

Filesize
112KB

MD5
8541304aadba4ae8620bb2699f6e0437

SHA1
e0b28a6ecd32d3789433217364c1006de9892df8

SHA256
50573c81e5773c13a5411e8446d7fb17956865675782239818f7affd40a2fecb

SHA512
c18b1233c138229705242e1cdc00970e45e414d8da9c643b1196ec9de261ae18076e22bed6fcc48c07d1f0e851469db9147f083f3c3c76a26b75994419392455

Download Submit
C:\windows \system32\KDECO.bat

Filesize
11KB

MD5
c545650595b479c81ad6b9d8882aae39

SHA1
7a98aa2e6eee23b3c1bba876955d525bc618b3f0

SHA256
a3a80983cb33159f0455fa0135789402558baa1460db94d0071318512b8cb5f9

SHA512
85ac596a7da9072a28c4178e4fdedc98f1b49c8e3fe5612cfe464833297b13f65d2dc59b52d7fc9970cff8f98d954111229aec0ed9dded454e03b0cf4ebb6ff3

Download Submit
memory/3084-38-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-53-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-4-0x0000000000400000-0x00000000005AF000-memory.dmp

Filesize
1.7MB

Download
memory/3084-2-0x00000000029A0000-0x00000000039A0000-memory.dmp

Filesize
16.0MB

Download
memory/3084-97-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-96-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-75-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-74-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-63-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-0-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/3084-40-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-42-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-43-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-44-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-45-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-46-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-47-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-48-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-52-0x0000000015420000-0x0000000016420000-memory.dmp

Filesize
16.0MB

Download
memory/3084-1-0x00000000029A0000-0x00000000039A0000-memory.dmp

Filesize
16.0MB

Download
memory/4172-32-0x00007FFD5EBC0000-0x00007FFD5F681000-memory.dmp

Filesize
10.8MB

Download
memory/4172-29-0x0000027D674F0000-0x0000027D67500000-memory.dmp

Filesize
64KB

Download
memory/4172-28-0x0000027D674F0000-0x0000027D67500000-memory.dmp

Filesize
64KB

Download
memory/4172-27-0x00007FFD5EBC0000-0x00007FFD5F681000-memory.dmp

Filesize
10.8MB

Download
memory/4172-17-0x0000027D674C0000-0x0000027D674E2000-memory.dmp

Filesize
136KB

Download
memory/4212-15-0x00000000613C0000-0x00000000613E3000-memory.dmp

Filesize
140KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads