modiloader | bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-01-2023 04:07

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General

Target

bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe
Size

545KB
MD5

ddc87cbd34c19161ea3d3b55b1888107
SHA1

96856473b6be57b05bdafc7bc33b69d7418b78a6
SHA256

bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640
SHA512

368912d8c614dd5f113c9a6f1a81066e29d2af51851c0fe4f7dae7131760f2e4b9b83bce7afaa890da444681853fe21744fe6815c254d19f3c8430edf1b9465b
SSDEEP

12288:nvuWauKWUBCv4oJ7/4ZCL2fJpgbaISXV8BiLjVjJINtTirdF:nvSu9UG3twI0pIaMWrwTEd

Score

10^/10

modiloader bootkit 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
behavioral1/memory/1916-56-0x0000000000400000-0x00000000004DC000-memory.dmp	modiloader_stage2

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

Processes:

bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

description ioc process

File opened for modification \??\PhysicalDrive0 bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

Drops file in Program Files directory 1 IoCs

Processes:

bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

description	ioc	process
File created	C:\Program Files\Common Files\Microsoft Shared\MSINFO\FieleWay.txt	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1704 1916 WerFault.exe bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

pid	pid_target	process	target process
1704	1916	WerFault.exe	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe

description	pid	process	target process
PID 1916 wrote to memory of 1368	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	IEXPLORE.EXE
PID 1916 wrote to memory of 1368	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	IEXPLORE.EXE
PID 1916 wrote to memory of 1368	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	IEXPLORE.EXE
PID 1916 wrote to memory of 1368	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	IEXPLORE.EXE
PID 1916 wrote to memory of 1704	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	WerFault.exe
PID 1916 wrote to memory of 1704	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	WerFault.exe
PID 1916 wrote to memory of 1704	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	WerFault.exe
PID 1916 wrote to memory of 1704	1916	bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe
"C:\Users\Admin\AppData\Local\Temp\bc777075c2d7b0e64a6430476f77cd8a63618b9b79e19394183fa35b23afa640.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1916
- C:\program files\internet explorer\IEXPLORE.EXE
  "C:\program files\internet explorer\IEXPLORE.EXE"
  2⤵
  PID:1368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1916 -s 316
  2⤵
  - Program crash
  PID:1704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1704-55-0x0000000000000000-mapping.dmp

Download
memory/1916-54-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download
memory/1916-56-0x0000000000400000-0x00000000004DC000-memory.dmp

Filesize
880KB

Download
memory/1916-57-0x0000000000550000-0x0000000000593000-memory.dmp

Filesize
268KB

Download