modiloader | 6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743

Analysis

max time kernel
120s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 08:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
Size

90KB
MD5

9c3967fb0a92cc7c259bfb6ad68ace90
SHA1

87f8ebf9d8958716c86c6ed0790f7ecf93c9de43
SHA256

6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743
SHA512

df0f005fe73547ba8e082a73f2cf02a812b301b960299eda288534d49e9f6844b5865bb85a71878c7bd9b34e332b7f0195e32720be1f7c887339892ee73301df
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD8:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2564-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2564-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2564-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2564-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe

Executes dropped EXE 3 IoCs

pid	Process
3352	csrsll.exe
3484	csrsll.exe
2564	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5000 set thread context of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 3352 set thread context of 3484	3352	csrsll.exe	104
PID 3352 set thread context of 2564	3352	csrsll.exe	105

UPX packed file 19 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5000-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5000-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1188-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1188-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1188-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5000-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c8f-29.dat	upx
behavioral2/memory/1188-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3352-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3352-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2564-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2564-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2564-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2564-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2564-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3352-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1188-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3484-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2564-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 7 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	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe
Token: SeDebugPrivilege	3484	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
3352	csrsll.exe
3484	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 5000 wrote to memory of 1188	5000	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	91
PID 1188 wrote to memory of 1316	1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	92
PID 1188 wrote to memory of 1316	1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	92
PID 1188 wrote to memory of 1316	1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	92
PID 1316 wrote to memory of 4812	1316	cmd.exe	96
PID 1316 wrote to memory of 4812	1316	cmd.exe	96
PID 1316 wrote to memory of 4812	1316	cmd.exe	96
PID 1188 wrote to memory of 3352	1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	97
PID 1188 wrote to memory of 3352	1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	97
PID 1188 wrote to memory of 3352	1188	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	97
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 3484	3352	csrsll.exe	104
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105
PID 3352 wrote to memory of 2564	3352	csrsll.exe	105

C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
"C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
  "C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1188
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BSOYO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1316
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:4812
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3352
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:3484
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\BSOYO.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
3420b2d78a27357bfaf1f9d852150769

SHA1
5766ec2c8c663d7e8e6f5a9b46b73d60acba8196

SHA256
a83e5630fcf62920b6c9d4afb0d48cdd6ca9648840cfd22c1934bdf17e155e60

SHA512
9990c55b6ab2533abd0b5b4adef54a2997cea2fa28646d3f32c93918d23e3f3ba1e1c6696bd3bf2f996256339243434605415ad7c0b890c9424b56ff0ed7fa08

Download Submit
memory/1188-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1188-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1188-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1188-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1188-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1188-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2564-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2564-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3352-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3352-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3352-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3484-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5000-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5000-5-0x0000000002930000-0x0000000002932000-memory.dmp

Filesize
8KB

Download
memory/5000-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5000-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5000-3-0x0000000002910000-0x0000000002912000-memory.dmp

Filesize
8KB

Download
memory/5000-6-0x0000000002940000-0x0000000002942000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads