modiloader | a1909ad50f89c221cc9709af3802fdf53a46be8d65f644d5e3968171e8666d69

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2023 14:13

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General

Target

z13000928388283838938293_PDF.exe
Size

1.8MB
MD5

6a6ee1e16a05699a932d388005a820be
SHA1

0c093f0c955450a1cc65ec14729529d0a5222b96
SHA256

a1909ad50f89c221cc9709af3802fdf53a46be8d65f644d5e3968171e8666d69
SHA512

6b2a0a2ba77c1308a583a4fab48f4c9fbfb67d52b7f65255263e7b1e14315c11ddf9460e45bb2a1c81887ef949d3d7d35600e3f6d41c1ce19babc2f511145bbb
SSDEEP

49152:aD4+yRMXpcOX8IxTqh0eJa3DZEe9sRuCVCW4oMyqChsyfue9T:aDqRMXpcOXX8Za31CuCcMMXC+yf

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/2588-3-0x0000000004820000-0x0000000005820000-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:

z13000928388283838938293_PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ahuzgwfw = "C:\\Users\\Public\\Ahuzgwfw.url"	z13000928388283838938293_PDF.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4476 2588 WerFault.exe z13000928388283838938293_PDF.exe

pid	pid_target	process	target process
4476	2588	WerFault.exe	z13000928388283838938293_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:

z13000928388283838938293_PDF.exe

pid process

2588 z13000928388283838938293_PDF.exe
2588 z13000928388283838938293_PDF.exe

pid	process
2588	z13000928388283838938293_PDF.exe
2588	z13000928388283838938293_PDF.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

z13000928388283838938293_PDF.exe

description	pid	process	target process
PID 2588 wrote to memory of 1288	2588	z13000928388283838938293_PDF.exe	colorcpl.exe
PID 2588 wrote to memory of 1288	2588	z13000928388283838938293_PDF.exe	colorcpl.exe
PID 2588 wrote to memory of 1288	2588	z13000928388283838938293_PDF.exe	colorcpl.exe

C:\Users\Admin\AppData\Local\Temp\z13000928388283838938293_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\z13000928388283838938293_PDF.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2588

C:\Windows\SysWOW64\colorcpl.exe
C:\Windows\System32\colorcpl.exe
2⤵
PID:1288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 1764
2⤵
- Program crash
PID:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2588 -ip 2588
1⤵
PID:2140

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/2588-0-0x0000000002360000-0x0000000002361000-memory.dmp

Filesize
4KB

Download
memory/2588-1-0x0000000004820000-0x0000000005820000-memory.dmp

Filesize
16.0MB

Download
memory/2588-2-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/2588-3-0x0000000004820000-0x0000000005820000-memory.dmp

Filesize
16.0MB

Download
memory/2588-5-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/2588-6-0x0000000002360000-0x0000000002361000-memory.dmp

Filesize
4KB

Download