modiloader | 12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05d

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 06:04

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General

Target

12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
Size

90KB
MD5

5f813c6d4dfc0ffbf6aa71b869995fc0
SHA1

10654dea6a7c811d368792e9618dabf4d9d2cac0
SHA256

12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05d
SHA512

d602a5874e92c6f4c1ec543060bc91c20dbfd1bcb81eff6b4e264d3fc598444d09c439f92e1ef2bf6ab1131b29f8522d4c0b34513073da99e0eec55acf411cfa
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1304-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1304-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1304-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1304-63-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe

Executes dropped EXE 3 IoCs

pid	Process
1540	csrsll.exe
2580	csrsll.exe
1304	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-1-5-21-1194130065-3471212556-1656947724-1000\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 4948 set thread context of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 1540 set thread context of 2580	1540	csrsll.exe	97
PID 1540 set thread context of 1304	1540	csrsll.exe	98

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4948-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4948-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2552-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2552-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4948-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2552-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000400000001e57e-29.dat	upx
behavioral2/memory/1540-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2552-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1540-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1540-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1304-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1304-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1304-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1540-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2552-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1304-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1304-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2580-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1304-63-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe
Token: SeDebugPrivilege	2580	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
1540	csrsll.exe
2580	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 4948 wrote to memory of 2552	4948	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	84
PID 2552 wrote to memory of 1252	2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	85
PID 2552 wrote to memory of 1252	2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	85
PID 2552 wrote to memory of 1252	2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	85
PID 1252 wrote to memory of 2248	1252	cmd.exe	88
PID 1252 wrote to memory of 2248	1252	cmd.exe	88
PID 1252 wrote to memory of 2248	1252	cmd.exe	88
PID 2552 wrote to memory of 1540	2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	91
PID 2552 wrote to memory of 1540	2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	91
PID 2552 wrote to memory of 1540	2552	12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe	91
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 2580	1540	csrsll.exe	97
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98
PID 1540 wrote to memory of 1304	1540	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
"C:\Users\Admin\AppData\Local\Temp\12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4948
- C:\Users\Admin\AppData\Local\Temp\12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe
  "C:\Users\Admin\AppData\Local\Temp\12e66c5392ea6dc1f602a33eb5372e7ccf375b89547f89c448546053de99d05dN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2552
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WUMCQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1252
  - - 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:2248
- - 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:1540
  - - 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:2580
  - - 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:1304

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d7abc0350f237c405aff4a738f9dc4e3

SHA1
a46508feac28b99089f4d8201278cee7de340727

SHA256
2f4b77a8b952c400b434ac8298f5fd0b67b87659c3389abd8281bb8c9f761118

SHA512
7c71c061e726082c087da34ba8406793a6a2cd19331b11dbdebd025dafc8471ed7df20ea1322aa4ab0d55ae8748a41834e84000063687af69fae7570a949f24b

Download Submit
memory/1304-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1540-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1540-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1540-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1540-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2552-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2580-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4948-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4948-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4948-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4948-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4948-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/4948-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads