modiloader | b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552

Analysis

max time kernel
189s
max time network
196s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 14:35

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General

Target

b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe
Size

38KB
MD5

e9cbd63669720296cfa18e6b830e3056
SHA1

c08625123109ba1f754678b2c15ba861cc8deb28
SHA256

b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552
SHA512

c629ddd6dd07c553f0210b456449886ca76c8022c6eca9148abf94c4c94ca7ca5938fb13df7d22e73b9e632649d82f57cecabb1d882940cf0db050b2b9e7abec
SSDEEP

768:OBycquQyb2sZvFUK0eLzjJyWM0/Kbe7mvCO5l2:LcquQGdU+Lz9MZAmKi2

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\twunk_16.exe	modiloader_stage2
C:\Users\Admin\AppData\Roaming\twunk_16.exe	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

twunk_16.exe

pid process

376 twunk_16.exe

pid	process
376	twunk_16.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:

b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

twunk_16.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\twunk_16 = "\"C:\\Users\\Admin\\AppData\\Roaming\\twunk_16.exe\""	twunk_16.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:

b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe

description	pid	process	target process
PID 1568 wrote to memory of 376	1568	b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe	twunk_16.exe
PID 1568 wrote to memory of 376	1568	b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe	twunk_16.exe
PID 1568 wrote to memory of 376	1568	b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe	twunk_16.exe

C:\Users\Admin\AppData\Local\Temp\b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe
"C:\Users\Admin\AppData\Local\Temp\b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1568

C:\Users\Admin\AppData\Roaming\twunk_16.exe
"C:\Users\Admin\AppData\Roaming\twunk_16.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:376

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\twunk_16.exe
Filesize
38KB

MD5
e9cbd63669720296cfa18e6b830e3056

SHA1
c08625123109ba1f754678b2c15ba861cc8deb28

SHA256
b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552

SHA512
c629ddd6dd07c553f0210b456449886ca76c8022c6eca9148abf94c4c94ca7ca5938fb13df7d22e73b9e632649d82f57cecabb1d882940cf0db050b2b9e7abec

Download Submit
C:\Users\Admin\AppData\Roaming\twunk_16.exe
Filesize
38KB

MD5
e9cbd63669720296cfa18e6b830e3056

SHA1
c08625123109ba1f754678b2c15ba861cc8deb28

SHA256
b83504de8cc6c96c773ba16c82c36f7f3631cdaaaba1a30a00a2c2f14e902552

SHA512
c629ddd6dd07c553f0210b456449886ca76c8022c6eca9148abf94c4c94ca7ca5938fb13df7d22e73b9e632649d82f57cecabb1d882940cf0db050b2b9e7abec

Download Submit
memory/376-132-0x0000000000000000-mapping.dmp

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