modiloader | cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
12-04-2023 13:12

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General

Target

Fmywfytcpwdmvi.exe
Size

707KB
MD5

3df32efa05c88263b4ab0001b5b86aca
SHA1

aa936331daad999b8561df9163f46c15be8272d4
SHA256

94aa407f90054e51d00b6c555ef7b566944290e990f3790bf18579afe0cf60b2
SHA512

6702cf703c845f411f34c742b8585ead12d76e7c01dfd075c77bd068a8585b438189b38331d1502d23cbab55aae1daa56afcffdd2242e5838dfd3291aa8cadd4
SSDEEP

12288:3lSLbFGyI6Lr4x6xsRzNgBlAU94uq43B2VrNoSv:VuL4xSsRzNgOuTx2VBv

Score

10^/10

modiloader persistence trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1044-135-0x0000000002290000-0x00000000022BC000-memory.dmp	modiloader_stage2

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Fmywfytcpwdmvi.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fmywfytc = "C:\\Users\\Public\\Libraries\\ctyfwymF.url"	Fmywfytcpwdmvi.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Fmywfytcpwdmvi.exe

pid process

1044 Fmywfytcpwdmvi.exe
1044 Fmywfytcpwdmvi.exe

pid	process
1044	Fmywfytcpwdmvi.exe
1044	Fmywfytcpwdmvi.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Fmywfytcpwdmvi.exe

description	pid	process	target process
PID 1044 wrote to memory of 2164	1044	Fmywfytcpwdmvi.exe	colorcpl.exe
PID 1044 wrote to memory of 2164	1044	Fmywfytcpwdmvi.exe	colorcpl.exe
PID 1044 wrote to memory of 2164	1044	Fmywfytcpwdmvi.exe	colorcpl.exe

C:\Users\Admin\AppData\Local\Temp\Fmywfytcpwdmvi.exe
"C:\Users\Admin\AppData\Local\Temp\Fmywfytcpwdmvi.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\colorcpl.exe
C:\Windows\System32\colorcpl.exe
2⤵
PID:2164

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1044-133-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/1044-134-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/1044-135-0x0000000002290000-0x00000000022BC000-memory.dmp

Filesize
176KB

Download
memory/1044-137-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/1044-149-0x0000000030410000-0x000000003043F000-memory.dmp

Filesize
188KB

Download
memory/1044-150-0x0000000030410000-0x000000003043F000-memory.dmp

Filesize
188KB

Download