modiloader | 735110feb84713dfcf393f2c56379cc8faaa2726243bbf76f68424c6195bd9ef

Analysis

max time kernel
131s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2024, 13:33

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General

Target

e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
Size

180KB
MD5

e93aef6a932c5f316d7842b8d633b48d
SHA1

d9a513e55a5d951e25e5fdccec6b71bb84a2899e
SHA256

735110feb84713dfcf393f2c56379cc8faaa2726243bbf76f68424c6195bd9ef
SHA512

65df8e35317ae804f7a649a400626cd11f894e6a4a23f59c32f0c0b87b1690aa5ecdf4345d48ccaf5e18fc3095a3dbd2d4b2d22d0e1eb9913bd342b84cbbfddc
SSDEEP

3072:TTygEZjisnO5/l2SWOIjWLFGBiMiJsPHXgWPSVDvqT6UcrOQVbO4LiLS5UxiIYWk:TTygozCTWfKGcPOPwSSETS/1ESyxiIYp

Score

10^/10

modiloader discovery 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 2 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\Userinit = "explorer.exe\"C:\\Windows\\crss.exe\","	crss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe \"C:\\Windows\\crss.exe\""	crss.exe

ModiLoader Second Stage 12 IoCs

resource	yara_rule
behavioral2/memory/4436-1-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-0-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-2-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-3-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-4-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-6-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/4436-39-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/1328-46-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/1328-47-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/1328-48-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/1328-49-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2
behavioral2/memory/1328-57-0x0000000000400000-0x0000000000433000-memory.dmp	modiloader_stage2

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	crss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\win32 = "C:\\Windows\\crss.exe"	crss.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{TDR65V8A-55SJ-KCM4-7QGK-84R7WQO6DO30}	crss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{TDR65V8A-55SJ-KCM4-7QGK-84R7WQO6DO30}\StubPath = "\"C:\\Windows\\crss.exe\""	crss.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2484	crss.exe
1328	crss.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3780 set thread context of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 2484 set thread context of 1328	2484	crss.exe	95

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\crss.exe	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
File opened for modification	C:\Windows\crss.exe	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4436	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
4436	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
1328	crss.exe
1328	crss.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 3780 wrote to memory of 4436	3780	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	89
PID 4436 wrote to memory of 2484	4436	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	94
PID 4436 wrote to memory of 2484	4436	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	94
PID 4436 wrote to memory of 2484	4436	e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe	94
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 2484 wrote to memory of 1328	2484	crss.exe	95
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97
PID 1328 wrote to memory of 384	1328	crss.exe	97

C:\Users\Admin\AppData\Local\Temp\e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3780
- C:\Users\Admin\AppData\Local\Temp\e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\e93aef6a932c5f316d7842b8d633b48d_JaffaCakes118.exe
  2⤵
  - Checks computer location settings
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4436
- - C:\Windows\crss.exe
    "C:\Windows\crss.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2484
  - - C:\Windows\crss.exe
      C:\Windows\crss.exe
      4⤵
      Modifies WinLogon for persistence
      Adds policy Run key to start application
      Boot or Logon Autostart Execution: Active Setup
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1328
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        
        PID:384

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=2540,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4356 /prefetch:8
1⤵
PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\crss.exe

Filesize
180KB

MD5
e93aef6a932c5f316d7842b8d633b48d

SHA1
d9a513e55a5d951e25e5fdccec6b71bb84a2899e

SHA256
735110feb84713dfcf393f2c56379cc8faaa2726243bbf76f68424c6195bd9ef

SHA512
65df8e35317ae804f7a649a400626cd11f894e6a4a23f59c32f0c0b87b1690aa5ecdf4345d48ccaf5e18fc3095a3dbd2d4b2d22d0e1eb9913bd342b84cbbfddc

Download Submit
memory/1328-47-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1328-46-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1328-48-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1328-49-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1328-52-0x0000000010410000-0x0000000010449000-memory.dmp

Filesize
228KB

Download
memory/1328-57-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-2-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-3-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-4-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-6-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-0-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-39-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/4436-1-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download