modiloader | 9431f9d5bf8a3d2ee34dc7624d8996e87af05e91ecb27b50843d5ddcb2f8f6bd

Analysis

max time kernel
144s
max time network
146s
platform
windows10_x64
resource
win10v200722
submitted
19/10/2020, 10:05

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General

Target
bh.exe
Size 1.1MB
Sample201019-vlkhczbg7a
SHA256 9431f9d5bf8a3d2ee34dc7624d8996e87af05e91ecb27b50843d5ddcb2f8f6bd
MD5 7b9f2ae652b1968df347c962c04c3fe4
SHA1 8189acd3fe9bd0c9103eeae82228162226569d3d
SHA512 0f99278e57a8640f952187c588ba12f6eb6ff1bfedb8dee68e6ea98fc2fe04fdc51748cc1e6a895ba5a30d88465f2e0aa491096a543d67ce4a4072e400c99f03
MD5 SHA1 SHA512

Score

10^/10

spyware trojan modiloader bootkit persistence

Malware Config

Signatures

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

ModiLoader First Stage 3 IoCs

resource	yara_rule
behavioral2/memory/2224-16-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage1
behavioral2/memory/2224-17-0x0000000000438AB8-mapping.dmp	modiloader_stage1
behavioral2/memory/2224-19-0x0000000000400000-0x000000000044D000-memory.dmp	modiloader_stage1

Executes dropped EXE 3 IoCs

pid	Process
1912	explorer.com
3092	explorer.com
2224	ipconfig.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tsrajslo.url	explorer.com

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	ipconfig.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 2224	3092	explorer.com	87

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
2224	ipconfig.exe

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
3604	PING.EXE
3540	PING.EXE

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3092	explorer.com

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 3472	4036	bh.exe	72
PID 4036 wrote to memory of 3472	4036	bh.exe	72
PID 4036 wrote to memory of 3472	4036	bh.exe	72
PID 4036 wrote to memory of 3988	4036	bh.exe	74
PID 4036 wrote to memory of 3988	4036	bh.exe	74
PID 4036 wrote to memory of 3988	4036	bh.exe	74
PID 3988 wrote to memory of 3792	3988	cmd.exe	76
PID 3988 wrote to memory of 3792	3988	cmd.exe	76
PID 3988 wrote to memory of 3792	3988	cmd.exe	76
PID 3792 wrote to memory of 3604	3792	cmd.exe	77
PID 3792 wrote to memory of 3604	3792	cmd.exe	77
PID 3792 wrote to memory of 3604	3792	cmd.exe	77
PID 3792 wrote to memory of 3864	3792	cmd.exe	78
PID 3792 wrote to memory of 3864	3792	cmd.exe	78
PID 3792 wrote to memory of 3864	3792	cmd.exe	78
PID 3792 wrote to memory of 1912	3792	cmd.exe	80
PID 3792 wrote to memory of 1912	3792	cmd.exe	80
PID 3792 wrote to memory of 1912	3792	cmd.exe	80
PID 3792 wrote to memory of 3540	3792	cmd.exe	81
PID 3792 wrote to memory of 3540	3792	cmd.exe	81
PID 3792 wrote to memory of 3540	3792	cmd.exe	81
PID 1912 wrote to memory of 3092	1912	explorer.com	83
PID 1912 wrote to memory of 3092	1912	explorer.com	83
PID 1912 wrote to memory of 3092	1912	explorer.com	83
PID 3092 wrote to memory of 2224	3092	explorer.com	87
PID 3092 wrote to memory of 2224	3092	explorer.com	87
PID 3092 wrote to memory of 2224	3092	explorer.com	87
PID 3092 wrote to memory of 2224	3092	explorer.com	87

C:\Users\Admin\AppData\Local\Temp\bh.exe
"C:\Users\Admin\AppData\Local\Temp\bh.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo MBQbFJkZm
  2⤵
  PID:3472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd < LBUFyfruNJVtpPaM.com
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3792
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 1 bfUrjm.PvJvJo
      4⤵
      Runs ping.exe
      PID:3604
  - - C:\Windows\SysWOW64\certutil.exe
      certutil -decode NOqvfCDBiQIIfpvzuSh.com V
      4⤵
      PID:3864
  - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\explorer.com
      explorer.com V
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1912
    - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\explorer.com
        
        C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\explorer.com V
        5⤵
        Executes dropped EXE
        Drops startup file
        Suspicious use of SetThreadContext
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:3092
      - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\ipconfig.exe
        
        C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\ipconfig.exe
        6⤵
        Executes dropped EXE
        Writes to the Master Boot Record (MBR)
        Gathers network information
        
        PID:2224
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 30
      4⤵
      Runs ping.exe
      PID:3540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2224-19-0x0000000000400000-0x000000000044D000-memory.dmp

Download

memory/2224-16-0x0000000000400000-0x000000000044D000-memory.dmp