modiloader | 5103bbe8915dfb5d5b58067c3112582b7c8eb710e0dcfd720a79a99370b23df9

Analysis

max time kernel
124s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
08-07-2024 19:23

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General

Target

2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe
Size

31KB
MD5

2d889cc99d992cb6cb478b76f9dbecea
SHA1

0aba963b4b23e523fd036d5d3e6edfb7f1786cbc
SHA256

5103bbe8915dfb5d5b58067c3112582b7c8eb710e0dcfd720a79a99370b23df9
SHA512

b21e21a976684e55bc68a65366957f78788b6d1b8d79d8a0e9d2d9e6710962953fd4c62995e9ba7e3eed5ea8fc7202c83558e49edaf262c36bfc871f719eb233
SSDEEP

768:zfoixqZOlQQ/a30oDNg0jMmVoas78Kuyfv:zfvxqZ4QQSE3gV9Suy

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Windows\\system\\csrss.exe"	csrss.exe

ModiLoader Second Stage 5 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023248-4.dat	modiloader_stage2
behavioral2/memory/4048-7-0x0000000000400000-0x000000000040F000-memory.dmp	modiloader_stage2
behavioral2/memory/3520-9-0x0000000000400000-0x000000000040F000-memory.dmp	modiloader_stage2
behavioral2/memory/3520-20-0x0000000000400000-0x000000000040F000-memory.dmp	modiloader_stage2
behavioral2/memory/3520-21-0x0000000000400000-0x000000000040F000-memory.dmp	modiloader_stage2

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Control Panel\International\Geo\Nation	2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3520	csrss.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\csrss.exe	2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe
File opened for modification	C:\Windows\system\csrss.exe	2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 3520	4048	2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe	84
PID 4048 wrote to memory of 3520	4048	2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe	84
PID 4048 wrote to memory of 3520	4048	2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2d889cc99d992cb6cb478b76f9dbecea_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Windows\system\csrss.exe
  "C:\Windows\system\csrss.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  PID:3520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System\csrss.exe

Filesize
31KB

MD5
2d889cc99d992cb6cb478b76f9dbecea

SHA1
0aba963b4b23e523fd036d5d3e6edfb7f1786cbc

SHA256
5103bbe8915dfb5d5b58067c3112582b7c8eb710e0dcfd720a79a99370b23df9

SHA512
b21e21a976684e55bc68a65366957f78788b6d1b8d79d8a0e9d2d9e6710962953fd4c62995e9ba7e3eed5ea8fc7202c83558e49edaf262c36bfc871f719eb233

Download Submit
memory/3520-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3520-20-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3520-21-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4048-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads