modiloader | 37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b

Analysis

max time kernel
288s
max time network
335s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 12:38

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General

Target

37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe
Size

36KB
MD5

8db03d30911d10446729f8ec196d46c3
SHA1

195e4bb9fc8b835de24fdba5b7dcfb8c89a5dc22
SHA256

37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b
SHA512

979cf40ca5ca7cb39237892b31b124d756b1c0587a816130138ed45d0454df1c448b977a3d990fc38672b85151708004ee5bae3d0673a9690d36481186696c05
SSDEEP

768:zycqOQ0bwMK2M3fQde8Pfymg0M9EQfRo0ys/KzK:mcqOQbB3fQc8Pfymg0yxpByxzK

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 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\BrowserUpdate.exe	modiloader_stage2
C:\Users\Admin\AppData\Roaming\BrowserUpdate.exe	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

BrowserUpdate.exe

pid process

3560 BrowserUpdate.exe

pid	process
3560	BrowserUpdate.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

BrowserUpdate.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Browser Update = "C:\\Users\\Admin\\AppData\\Roaming\\BrowserUpdate.exe"	BrowserUpdate.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe

description	pid	process	target process
PID 4524 wrote to memory of 3560	4524	37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe	BrowserUpdate.exe
PID 4524 wrote to memory of 3560	4524	37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe	BrowserUpdate.exe
PID 4524 wrote to memory of 3560	4524	37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe	BrowserUpdate.exe

C:\Users\Admin\AppData\Local\Temp\37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe
"C:\Users\Admin\AppData\Local\Temp\37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4524

C:\Users\Admin\AppData\Roaming\BrowserUpdate.exe
"C:\Users\Admin\AppData\Roaming\BrowserUpdate.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:3560

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\BrowserUpdate.exe
Filesize
36KB

MD5
8db03d30911d10446729f8ec196d46c3

SHA1
195e4bb9fc8b835de24fdba5b7dcfb8c89a5dc22

SHA256
37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b

SHA512
979cf40ca5ca7cb39237892b31b124d756b1c0587a816130138ed45d0454df1c448b977a3d990fc38672b85151708004ee5bae3d0673a9690d36481186696c05

Download Submit
C:\Users\Admin\AppData\Roaming\BrowserUpdate.exe
Filesize
36KB

MD5
8db03d30911d10446729f8ec196d46c3

SHA1
195e4bb9fc8b835de24fdba5b7dcfb8c89a5dc22

SHA256
37b0e0add126da3af5c4ba574955ebd4d6c77d410dfde52bed7e871570032e3b

SHA512
979cf40ca5ca7cb39237892b31b124d756b1c0587a816130138ed45d0454df1c448b977a3d990fc38672b85151708004ee5bae3d0673a9690d36481186696c05

Download Submit
memory/3560-132-0x0000000000000000-mapping.dmp

Download