modiloader | 43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2

Analysis

max time kernel
118s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 09:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe
Size

90KB
MD5

73cbaa9be5eef904f87cd39e80ae4020
SHA1

8cb75e4599238f0d882728f949eb5970e8f8e4ea
SHA256

43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2
SHA512

81bac33cf7780453b499238dd88c231af10ef3dc101bbb931693ac6181ba53604d3ec4947d6d1b479890275074e80e1378fd66e05f1c5951b22595e3d766b194
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/3112-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3112-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe

Executes dropped EXE 3 IoCs

pid	Process
4712	csrsll.exe
4812	csrsll.exe
3112	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-1-5-21-3227495264-2217614367-4027411560-1000\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 4360 set thread context of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4712 set thread context of 4812	4712	csrsll.exe	99
PID 4712 set thread context of 3112	4712	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4360-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4360-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/432-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/432-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/432-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4360-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000f000000023b57-29.dat	upx
behavioral2/memory/4712-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/432-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4712-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4712-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3112-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3112-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3112-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4712-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/432-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3112-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3112-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4812-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3112-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe
Token: SeDebugPrivilege	4812	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe
432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe
4712	csrsll.exe
4812	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 4360 wrote to memory of 432	4360	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	91
PID 432 wrote to memory of 3084	432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	94
PID 432 wrote to memory of 3084	432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	94
PID 432 wrote to memory of 3084	432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	94
PID 3084 wrote to memory of 1848	3084	cmd.exe	97
PID 3084 wrote to memory of 1848	3084	cmd.exe	97
PID 3084 wrote to memory of 1848	3084	cmd.exe	97
PID 432 wrote to memory of 4712	432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	98
PID 432 wrote to memory of 4712	432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	98
PID 432 wrote to memory of 4712	432	43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe	98
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 4812	4712	csrsll.exe	99
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100
PID 4712 wrote to memory of 3112	4712	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe
"C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe
  "C:\Users\Admin\AppData\Local\Temp\43a84d9bc9e56a5981e848385632542d8f3b98578471fe6845401096ca75ccd2N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:432
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\KNDIW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3084
  - - 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:1848
- - 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:4712
  - - 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:4812
  - - 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:3112

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\KNDIW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
92f2f5faeea17eee2504f4bc76c20cd5

SHA1
bb55590b0ec278b3dc8ac39e586b8107f2dac602

SHA256
dd7cc5c47e92b4d2ba4f06a6854a37e081170a3513b79de5cc7e0de93d8f6327

SHA512
99505931099fcd913cd4a325dc97e7df8db0fbf93f0b1dde6b614e787874963d2422b554442e0b21e3e738624975d29ccc1544fe990f79231861d9b16a41a29a

Download Submit
memory/432-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/432-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/432-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/432-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/432-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3112-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3112-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4360-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4360-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4360-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4360-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4360-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4360-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4812-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads