modiloader | 256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8

Analysis

max time kernel
149s
max time network
155s
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, 07:39

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General

Target

256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe
Size

90KB
MD5

dca8d73e875c1b36915b761b11544ed0
SHA1

bd5e95898ed38708ce097885f2b59d789bf90cb6
SHA256

256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8
SHA512

43cea8c88d16b429d016d6811946548483e6824919936caad4eef79d9f29dcf55bc00bae4c6567f8bd81137568d298b5e19ce25c12b392c0568e2d9b1f2d9275
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/1476-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1476-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1476-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1476-64-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe

Executes dropped EXE 3 IoCs

pid	Process
1432	csrsll.exe
768	csrsll.exe
1476	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-1-5-21-2412658365-3084825385-3340777666-1000\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 2664 set thread context of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 1432 set thread context of 768	1432	csrsll.exe	97
PID 1432 set thread context of 1476	1432	csrsll.exe	98

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2664-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2664-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3764-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3764-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3764-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2664-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023480-29.dat	upx
behavioral2/memory/1432-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3764-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1432-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1432-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1476-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1476-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1476-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1476-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1432-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1476-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3764-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/768-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1476-64-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe
Token: SeDebugPrivilege	768	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe
3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe
1432	csrsll.exe
768	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 2664 wrote to memory of 3764	2664	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	89
PID 3764 wrote to memory of 3376	3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	92
PID 3764 wrote to memory of 3376	3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	92
PID 3764 wrote to memory of 3376	3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	92
PID 3376 wrote to memory of 1692	3376	cmd.exe	95
PID 3376 wrote to memory of 1692	3376	cmd.exe	95
PID 3376 wrote to memory of 1692	3376	cmd.exe	95
PID 3764 wrote to memory of 1432	3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	96
PID 3764 wrote to memory of 1432	3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	96
PID 3764 wrote to memory of 1432	3764	256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe	96
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 768	1432	csrsll.exe	97
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98
PID 1432 wrote to memory of 1476	1432	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe
"C:\Users\Admin\AppData\Local\Temp\256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Users\Admin\AppData\Local\Temp\256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe
  "C:\Users\Admin\AppData\Local\Temp\256c3d7a0d1086fe2aacbf0614331373b37b9e1ab6693e98e992c57cd0db5ec8N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3764
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PNRMU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3376
  - - 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:1692
- - 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:1432
  - - 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:768
  - - 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:1476

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\PNRMU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5188290aac7aa4e66d3757e0f74ba399

SHA1
255831a11ab06598679dba00a0cbcd5697594d91

SHA256
fab12353ed99d39dfc0fa20c4b2d0bb4607b6b5e507a16832ece439d04d91ffa

SHA512
3087bd842af5f925d91d5239dd326fa60965ecb5176e8681392a30f5a5f1dbbf54e92c3344d3b6641a5c6038b176b15542f128dd1ff416e0c0111bcb6b994e13

Download Submit
memory/768-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1432-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1432-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1432-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1432-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1476-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1476-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2664-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2664-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2664-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2664-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/2664-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2664-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/3764-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3764-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads