modiloader | c4cd277e81aec420cdf23a0d5ebff50b0d64dd9c6b3b1942567c263032f64deb

Analysis

max time kernel
163s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31/01/2023, 00:41

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General

Target
b4baab930a798fe4622b535b92c345f3.exe
Size 773KB
Sample230131-a1rx1sfa7t
SHA256 c4cd277e81aec420cdf23a0d5ebff50b0d64dd9c6b3b1942567c263032f64deb
MD5 b4baab930a798fe4622b535b92c345f3
SHA1 05de8839222f6ec3d8b6dc9d30e826110f51fae2
SHA512 3e04eb076c9d0a4ca425c4d62495ddfac3ada5e5e34adf92d607dc2a42c9c9ddbfed8576a6ec28e0ccaf87816121e039597f20b3d702d1d7706877056663ca28
SSDEEP 12288:sncOtoAFbkyA1KFW5A3AImxsfKutdiQkBkG0nFEAoAYyNG/xhIL/2nSrJWIXnyGI:sn/tJ61OW5AQIl166G02aG7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader remcos today-file persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

TODAY-FILE

dansanija.duckdns.org:2404

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
true
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
rmc
mouse_option
false
mutex
Rmc-XYGMBB
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

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/3440-132-0x0000000004650000-0x000000000467B000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
3964	easinvoker.exe

Loads dropped DLL 1 IoCs

pid	Process
3964	easinvoker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Whlahzpy = "C:\\Users\\Public\\Libraries\\ypzhalhW.url"	b4baab930a798fe4622b535b92c345f3.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1844	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
548	powershell.exe
548	powershell.exe
3440	b4baab930a798fe4622b535b92c345f3.exe
3440	b4baab930a798fe4622b535b92c345f3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	548	powershell.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 4904	3440	b4baab930a798fe4622b535b92c345f3.exe	81
PID 3440 wrote to memory of 4904	3440	b4baab930a798fe4622b535b92c345f3.exe	81
PID 3440 wrote to memory of 4904	3440	b4baab930a798fe4622b535b92c345f3.exe	81
PID 4904 wrote to memory of 4824	4904	cmd.exe	83
PID 4904 wrote to memory of 4824	4904	cmd.exe	83
PID 4904 wrote to memory of 4824	4904	cmd.exe	83
PID 4904 wrote to memory of 4788	4904	cmd.exe	84
PID 4904 wrote to memory of 4788	4904	cmd.exe	84
PID 4904 wrote to memory of 4788	4904	cmd.exe	84
PID 4904 wrote to memory of 696	4904	cmd.exe	85
PID 4904 wrote to memory of 696	4904	cmd.exe	85
PID 4904 wrote to memory of 696	4904	cmd.exe	85
PID 4904 wrote to memory of 2244	4904	cmd.exe	86
PID 4904 wrote to memory of 2244	4904	cmd.exe	86
PID 4904 wrote to memory of 2244	4904	cmd.exe	86
PID 4904 wrote to memory of 3988	4904	cmd.exe	87
PID 4904 wrote to memory of 3988	4904	cmd.exe	87
PID 4904 wrote to memory of 3988	4904	cmd.exe	87
PID 4904 wrote to memory of 4244	4904	cmd.exe	88
PID 4904 wrote to memory of 4244	4904	cmd.exe	88
PID 4904 wrote to memory of 4244	4904	cmd.exe	88
PID 4904 wrote to memory of 3964	4904	cmd.exe	89
PID 4904 wrote to memory of 3964	4904	cmd.exe	89
PID 3964 wrote to memory of 1712	3964	easinvoker.exe	90
PID 3964 wrote to memory of 1712	3964	easinvoker.exe	90
PID 4904 wrote to memory of 1844	4904	cmd.exe	92
PID 4904 wrote to memory of 1844	4904	cmd.exe	92
PID 4904 wrote to memory of 1844	4904	cmd.exe	92
PID 1712 wrote to memory of 548	1712	cmd.exe	93
PID 1712 wrote to memory of 548	1712	cmd.exe	93
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100
PID 3440 wrote to memory of 3200	3440	b4baab930a798fe4622b535b92c345f3.exe	100

C:\Users\Admin\AppData\Local\Temp\b4baab930a798fe4622b535b92c345f3.exe
"C:\Users\Admin\AppData\Local\Temp\b4baab930a798fe4622b535b92c345f3.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\WhlahzpyO.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
    3⤵
    PID:4824
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:4788
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
    3⤵
    PID:696
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:2244
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
    3⤵
    PID:3988
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:4244
- - C:\Windows \System32\easinvoker.exe
    "C:\Windows \System32\easinvoker.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:3964
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1712
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
        5⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:548
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 6
    3⤵
    - Runs ping.exe
    PID:1844
- C:\Windows\SysWOW64\colorcpl.exe
  C:\Windows\System32\colorcpl.exe
  2⤵
  PID:3200

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

KDECO.bat

Path C:\Users\Public\Libraries\KDECO.bat
Size 155B
SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
MD5 213c60adf1c9ef88dc3c9b2d579959d2
SHA1 e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021
SHA512 fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7
MD5 SHA1 SHA512

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WhlahzpyO.bat

Path C:\Users\Public\Libraries\WhlahzpyO.bat
Size 411B
SHA256 5a11c5641c476891aa30e7ecfa57c2639f6827d8640061f73e9afec0adbbd7d2
MD5 55aba243e88f6a6813c117ffe1fa5979
SHA1 210b9b028a4b798c837a182321dbf2e50d112816
SHA512 68009c4c9bbea75a3bfa9f79945d30957a95691ea405d031b4ca7f1cb47504bbc768fcae59173885743ad4d6cfdd2313c3fe0acb515e34e5c809ecdc7f45e307
MD5 SHA1 SHA512

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easinvoker.exe

Path C:\Users\Public\Libraries\easinvoker.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:\Users\Public\Libraries\netutils.dll
Size 108KB
SHA256 8fcee46630ac35d7757a30701098b23c00e6ee80eafa836c71a23312826f7963
MD5 a800effc5290ed4d6869ee2fe0acb96c
SHA1 08b9a4a6e84c99670e08fd0a0036790cd09d5c00
SHA512 aa2526533e0b8408445a9af3cd29f67c4d5313281de76227951741b67ce21caf47c9775e0c79b663ea6187c6891a587ed6fe51a8fd61f65193da69cc2ba4a654
SSDEEP 1536:zljNHW+qID3TTy6Xt8amsy1o865jd5w8DdD05Cl7MbiRHRYQ+b:zJxW+N/N8ago865w8DdD0wRYQ+b
MD5 SHA1 SHA512 SSDEEP

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easinvoker.exe

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

Submit Download

easinvoker.exe

Path C:\Windows \System32\easinvoker.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 108KB
SHA256 8fcee46630ac35d7757a30701098b23c00e6ee80eafa836c71a23312826f7963
MD5 a800effc5290ed4d6869ee2fe0acb96c
SHA1 08b9a4a6e84c99670e08fd0a0036790cd09d5c00
SHA512 aa2526533e0b8408445a9af3cd29f67c4d5313281de76227951741b67ce21caf47c9775e0c79b663ea6187c6891a587ed6fe51a8fd61f65193da69cc2ba4a654
SSDEEP 1536:zljNHW+qID3TTy6Xt8amsy1o865jd5w8DdD05Cl7MbiRHRYQ+b:zJxW+N/N8ago865w8DdD0wRYQ+b
MD5 SHA1 SHA512 SSDEEP

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netutils.dll

Path C:\Windows \System32\netutils.dll
Size 108KB
SHA256 8fcee46630ac35d7757a30701098b23c00e6ee80eafa836c71a23312826f7963
MD5 a800effc5290ed4d6869ee2fe0acb96c
SHA1 08b9a4a6e84c99670e08fd0a0036790cd09d5c00
SHA512 aa2526533e0b8408445a9af3cd29f67c4d5313281de76227951741b67ce21caf47c9775e0c79b663ea6187c6891a587ed6fe51a8fd61f65193da69cc2ba4a654
SSDEEP 1536:zljNHW+qID3TTy6Xt8amsy1o865jd5w8DdD05Cl7MbiRHRYQ+b:zJxW+N/N8ago865w8DdD0wRYQ+b
MD5 SHA1 SHA512 SSDEEP

Submit Download

KDECO.bat

Path C:\windows \system32\KDECO.bat
Size 155B
SHA256 37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e
MD5 213c60adf1c9ef88dc3c9b2d579959d2
SHA1 e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021
SHA512 fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7
MD5 SHA1 SHA512

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memory/548-154-0x000002C046920000-0x000002C046942000-memory.dmp

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memory/548-155-0x00007FFE1C4D0000-0x00007FFE1CF91000-memory.dmp

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memory/548-159-0x00007FFE1C4D0000-0x00007FFE1CF91000-memory.dmp

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memory/3200-162-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/3200-161-0x0000000010590000-0x0000000010612000-memory.dmp

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memory/3200-160-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/3440-158-0x0000000010590000-0x0000000010612000-memory.dmp

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memory/3440-132-0x0000000004650000-0x000000000467B000-memory.dmp

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memory/3440-157-0x0000000010590000-0x0000000010612000-memory.dmp

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