modiloader | c3590c9943ef8ebc4c4b428dd8d5ca97e7855b4a86ef8db6913316d7711ea8a3

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2023 04:18

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General

Target

ScanDocumenstfileso208499494973738448484.exe
Size

677KB
MD5

6ae419b71e5b2abe084ea11bd71c6bdf
SHA1

2f336e3a8d7b63c17af0a5035b07bf2889fcd490
SHA256

c3590c9943ef8ebc4c4b428dd8d5ca97e7855b4a86ef8db6913316d7711ea8a3
SHA512

996bd040f5247f4ef97184f76500ef6b5b0f4c7920c40998a366932ebbd94b02911fec6070022ef892f2b3a8bada7786a41157f23029129ac231939fe836b5fc
SSDEEP

12288:+J8P4O2utBLvuQ4ZNn1AjnJzQFftOZCcgy:mIWutBLm/NnoJzQFW

Score

10^/10

modiloader remcos cassandra-crypter persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

CASSANDRA-CRYPTER

www.supremeswitchgear.com: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
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
rcm
mouse_option
false
mutex
Rmc-XUTYB1
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

Processes:

resource	yara_rule
behavioral2/memory/4252-132-0x00000000022D0000-0x00000000022FC000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

Processes:

easinvoker.exeywyezutJ.pif

pid process

4988 easinvoker.exe
2156 ywyezutJ.pif
Loads dropped DLL 1 IoCs

Processes:

easinvoker.exe

pid process

4988 easinvoker.exe

pid	process
4988	easinvoker.exe
2156	ywyezutJ.pif

pid	process
4988	easinvoker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ScanDocumenstfileso208499494973738448484.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Jtuzeywy = "C:\\Users\\Public\\Libraries\\ywyezutJ.url"	ScanDocumenstfileso208499494973738448484.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

xcopy.exexcopy.exexcopy.exe

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

Processes:

PING.EXE

pid process

2176 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

3468 powershell.exe
3468 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3468 powershell.exe

pid	process
2176	PING.EXE

pid	process
3468	powershell.exe
3468	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3468	powershell.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

ScanDocumenstfileso208499494973738448484.execmd.exeeasinvoker.execmd.exe

description	pid	process	target process
PID 4252 wrote to memory of 2848	4252	ScanDocumenstfileso208499494973738448484.exe	cmd.exe
PID 4252 wrote to memory of 2848	4252	ScanDocumenstfileso208499494973738448484.exe	cmd.exe
PID 4252 wrote to memory of 2848	4252	ScanDocumenstfileso208499494973738448484.exe	cmd.exe
PID 2848 wrote to memory of 4884	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 4884	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 4884	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 2128	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 2128	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 2128	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 1848	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 1848	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 1848	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 1144	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 1144	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 1144	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 2300	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 2300	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 2300	2848	cmd.exe	cmd.exe
PID 2848 wrote to memory of 1344	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 1344	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 1344	2848	cmd.exe	xcopy.exe
PID 2848 wrote to memory of 4988	2848	cmd.exe	easinvoker.exe
PID 2848 wrote to memory of 4988	2848	cmd.exe	easinvoker.exe
PID 4988 wrote to memory of 720	4988	easinvoker.exe	cmd.exe
PID 4988 wrote to memory of 720	4988	easinvoker.exe	cmd.exe
PID 2848 wrote to memory of 2176	2848	cmd.exe	PING.EXE
PID 2848 wrote to memory of 2176	2848	cmd.exe	PING.EXE
PID 2848 wrote to memory of 2176	2848	cmd.exe	PING.EXE
PID 720 wrote to memory of 3468	720	cmd.exe	powershell.exe
PID 720 wrote to memory of 3468	720	cmd.exe	powershell.exe
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif
PID 4252 wrote to memory of 2156	4252	ScanDocumenstfileso208499494973738448484.exe	ywyezutJ.pif

C:\Users\Admin\AppData\Local\Temp\ScanDocumenstfileso208499494973738448484.exe
"C:\Users\Admin\AppData\Local\Temp\ScanDocumenstfileso208499494973738448484.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4252

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\JtuzeywyO.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:2848

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
3⤵
PID:4884

C:\Windows\SysWOW64\xcopy.exe
xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
3⤵
- Enumerates system info in registry
PID:2128

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
3⤵
PID:1848

C:\Windows\SysWOW64\xcopy.exe
xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
3⤵
- Enumerates system info in registry
PID:1144

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
3⤵
PID:2300

C:\Windows\SysWOW64\xcopy.exe
xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
3⤵
- Enumerates system info in registry
PID:1344

C:\Windows \System32\easinvoker.exe
"C:\Windows \System32\easinvoker.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4988

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
4⤵
- Suspicious use of WriteProcessMemory
PID:720

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:3468

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 6
3⤵
- Runs ping.exe
PID:2176

C:\Users\Public\Libraries\ywyezutJ.pif
C:\Users\Public\Libraries\ywyezutJ.pif
2⤵
- Executes dropped EXE
PID:2156

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

C:\Users\Public\Libraries\JtuzeywyO.bat

Filesize
411B

MD5
55aba243e88f6a6813c117ffe1fa5979

SHA1
210b9b028a4b798c837a182321dbf2e50d112816

SHA256
5a11c5641c476891aa30e7ecfa57c2639f6827d8640061f73e9afec0adbbd7d2

SHA512
68009c4c9bbea75a3bfa9f79945d30957a95691ea405d031b4ca7f1cb47504bbc768fcae59173885743ad4d6cfdd2313c3fe0acb515e34e5c809ecdc7f45e307

Download Submit
C:\Users\Public\Libraries\KDECO.bat

Filesize
155B

MD5
213c60adf1c9ef88dc3c9b2d579959d2

SHA1
e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021

SHA256
37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e

SHA512
fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7

Download Submit
C:\Users\Public\Libraries\easinvoker.exe

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Users\Public\Libraries\netutils.dll

Filesize
110KB

MD5
b375e74a145c45d07190212e9157e5f8

SHA1
59d3de7748e1090ce95523601224ce5ab6cc4a3a

SHA256
6ec341496722bfdde504d430a7ece494701a9369b1fa5376ec488a77ab3c1744

SHA512
859737afb6108f131c0ac35560878359505c4f7fdd01ce468c04b15848df71f70987552a831a43ce948a37c9b1d6a434ff7f6fb5946f3730049b924d5b462ef0

Download Submit
C:\Users\Public\Libraries\ywyezutJ.pif

Filesize
66KB

MD5
c116d3604ceafe7057d77ff27552c215

SHA1
452b14432fb5758b46f2897aeccd89f7c82a727d

SHA256
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301

SHA512
9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6

Download Submit
C:\Users\Public\Libraries\ywyezutJ.pif

Filesize
66KB

MD5
c116d3604ceafe7057d77ff27552c215

SHA1
452b14432fb5758b46f2897aeccd89f7c82a727d

SHA256
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301

SHA512
9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6

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

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

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

Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

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

Filesize
110KB

MD5
b375e74a145c45d07190212e9157e5f8

SHA1
59d3de7748e1090ce95523601224ce5ab6cc4a3a

SHA256
6ec341496722bfdde504d430a7ece494701a9369b1fa5376ec488a77ab3c1744

SHA512
859737afb6108f131c0ac35560878359505c4f7fdd01ce468c04b15848df71f70987552a831a43ce948a37c9b1d6a434ff7f6fb5946f3730049b924d5b462ef0

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

Filesize
110KB

MD5
b375e74a145c45d07190212e9157e5f8

SHA1
59d3de7748e1090ce95523601224ce5ab6cc4a3a

SHA256
6ec341496722bfdde504d430a7ece494701a9369b1fa5376ec488a77ab3c1744

SHA512
859737afb6108f131c0ac35560878359505c4f7fdd01ce468c04b15848df71f70987552a831a43ce948a37c9b1d6a434ff7f6fb5946f3730049b924d5b462ef0

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

Filesize
155B

MD5
213c60adf1c9ef88dc3c9b2d579959d2

SHA1
e4d2ad7b22b1a8b5b1f7a702b303c7364b0ee021

SHA256
37c59c8398279916cfce45f8c5e3431058248f5e3bef4d9f5c0f44a7d564f82e

SHA512
fe897d9caa306b0e761b2fd61bb5dc32a53bfaad1ce767c6860af4e3ad59c8f3257228a6e1072dab0f990cb51c59c648084ba419ac6bc5c0a99bdffa569217b7

Download Submit
memory/720-150-0x0000000000000000-mapping.dmp

Download
memory/1144-140-0x0000000000000000-mapping.dmp

Download
memory/1344-143-0x0000000000000000-mapping.dmp

Download
memory/1848-139-0x0000000000000000-mapping.dmp

Download
memory/2128-137-0x0000000000000000-mapping.dmp

Download
memory/2156-157-0x0000000000000000-mapping.dmp

Download
memory/2156-163-0x0000000002400000-0x000000000247F000-memory.dmp

Filesize
508KB

Download
memory/2156-162-0x0000000002400000-0x000000000247F000-memory.dmp

Filesize
508KB

Download
memory/2156-161-0x0000000010590000-0x0000000010612000-memory.dmp

Filesize
520KB

Download
memory/2176-151-0x0000000000000000-mapping.dmp

Download
memory/2300-142-0x0000000000000000-mapping.dmp

Download
memory/2848-134-0x0000000000000000-mapping.dmp

Download
memory/3468-155-0x00007FF8F8850000-0x00007FF8F9311000-memory.dmp

Filesize
10.8MB

Download
memory/3468-154-0x000001CF8AF40000-0x000001CF8AF62000-memory.dmp

Filesize
136KB

Download
memory/3468-153-0x0000000000000000-mapping.dmp

Download
memory/4252-156-0x0000000010590000-0x0000000010612000-memory.dmp

Filesize
520KB

Download
memory/4252-160-0x0000000010590000-0x0000000010612000-memory.dmp

Filesize
520KB

Download
memory/4252-132-0x00000000022D0000-0x00000000022FC000-memory.dmp

Filesize
176KB

Download
memory/4884-136-0x0000000000000000-mapping.dmp

Download
memory/4988-145-0x0000000000000000-mapping.dmp

Download