modiloader | 2159cbace070eda555164924c4bf646924d95a7dcbc3cf7ab44d2c918d0abe0b

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2023 08:35

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General

Target

003786546788765.PDF.exe
Size

1.8MB
MD5

dd985ad6ff3a38972aa87834407f9e62
SHA1

980e4e4f22d48c0e336bbf9b5fca0e7320461720
SHA256

2159cbace070eda555164924c4bf646924d95a7dcbc3cf7ab44d2c918d0abe0b
SHA512

83f0695bce3f75431d8509d8770934adcc09a76ae46f01b03882657e333264d188fb4b25bca9aeb3da67437e3c3513044a841ee564eadd997ca9085ca4fb64a6
SSDEEP

49152:bee0SeGwcSGQuOvlzgzRlyYFT9xZdmPSw:blMGNQuywXFJQ

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/4704-3-0x0000000004BF0000-0x0000000005BF0000-memory.dmp	modiloader_stage2

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

003786546788765.PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ygolxkvk = "C:\\Users\\Public\\Ygolxkvk.url"	003786546788765.PDF.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2876 4704 WerFault.exe 003786546788765.PDF.exe

pid	pid_target	process	target process
2876	4704	WerFault.exe	003786546788765.PDF.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	22	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

003786546788765.PDF.exe

pid process

4704 003786546788765.PDF.exe
4704 003786546788765.PDF.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

SndVol.exe

pid process

2964 SndVol.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

SndVol.exe

pid process

2964 SndVol.exe
2964 SndVol.exe

pid	process
4704	003786546788765.PDF.exe
4704	003786546788765.PDF.exe

pid	process
2964	SndVol.exe

pid	process
2964	SndVol.exe
2964	SndVol.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

003786546788765.PDF.exe

description	pid	process	target process
PID 4704 wrote to memory of 2964	4704	003786546788765.PDF.exe	SndVol.exe
PID 4704 wrote to memory of 2964	4704	003786546788765.PDF.exe	SndVol.exe
PID 4704 wrote to memory of 2964	4704	003786546788765.PDF.exe	SndVol.exe

C:\Users\Admin\AppData\Local\Temp\003786546788765.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\003786546788765.PDF.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4704

C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1468
2⤵
- Program crash
PID:2876

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704
1⤵
PID:2320

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

memory/4704-0-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download
memory/4704-1-0x0000000004BF0000-0x0000000005BF0000-memory.dmp

Filesize
16.0MB

Download
memory/4704-2-0x0000000000400000-0x00000000005CF000-memory.dmp

Filesize
1.8MB

Download
memory/4704-3-0x0000000004BF0000-0x0000000005BF0000-memory.dmp

Filesize
16.0MB

Download
memory/4704-5-0x0000000000400000-0x00000000005CF000-memory.dmp

Filesize
1.8MB

Download
memory/4704-6-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download