modiloader | a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 06:56

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General

Target

a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe
Size

90KB
MD5

a584aff03dc66ca91787b45825d1d057
SHA1

ef8aa36b2583420fcb1db807d10e0508ab12c43b
SHA256

a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf
SHA512

88fd87256357bf819dafe6a8a7abb2b5b88f67bfbb3a55735c187826e0b1c6c8540512b151e3b517ba5b8563fd5c51ee047bdd4114debc28af9c3489ad282388
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD3:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3V

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/1484-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1484-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1484-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1484-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe

Executes dropped EXE 3 IoCs

pid	Process
4152	csrsll.exe
2748	csrsll.exe
1484	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-1-5-21-3442511616-637977696-3186306149-1000\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 4960 set thread context of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4152 set thread context of 2748	4152	csrsll.exe	92
PID 4152 set thread context of 1484	4152	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4960-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4960-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4192-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4192-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4192-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4960-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cd2-30.dat	upx
behavioral2/memory/4192-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4152-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4152-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1484-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1484-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1484-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4152-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1484-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1484-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4192-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2748-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1484-62-0x0000000000400000-0x0000000000414000-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	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.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	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe
Token: SeDebugPrivilege	2748	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe
4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe
4152	csrsll.exe
2748	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4960 wrote to memory of 4192	4960	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	82
PID 4192 wrote to memory of 1740	4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	83
PID 4192 wrote to memory of 1740	4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	83
PID 4192 wrote to memory of 1740	4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	83
PID 1740 wrote to memory of 764	1740	cmd.exe	86
PID 1740 wrote to memory of 764	1740	cmd.exe	86
PID 1740 wrote to memory of 764	1740	cmd.exe	86
PID 4192 wrote to memory of 4152	4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	87
PID 4192 wrote to memory of 4152	4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	87
PID 4192 wrote to memory of 4152	4192	a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe	87
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 2748	4152	csrsll.exe	92
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93
PID 4152 wrote to memory of 1484	4152	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe
"C:\Users\Admin\AppData\Local\Temp\a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Users\Admin\AppData\Local\Temp\a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe
  "C:\Users\Admin\AppData\Local\Temp\a296417cb77089c0f2be7aeaa0949f54a3df271ee48a5c033400d6d8ac6b4bbf.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4192
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FGRXO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1740
  - - 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:764
- - 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:4152
  - - 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:2748
  - - 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:1484

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\FGRXO.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
65a97896da1d56ff891be0a83c109ee2

SHA1
3e02fec20392be9a688ee8da2f18a231493584ff

SHA256
6649d815e0365c382d03ec431e1b0e33d84e15150ce7e97d5617927e95618412

SHA512
3580aa0b1448cea6b5577f4b33dc1771f37f2cf7b310ebe3741b0880e9a13c410b1c706544dd4908fd573e21774845b584ae02793d21d37e2ae7e7f8cadf78ae

Download Submit
memory/1484-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1484-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1484-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1484-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1484-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1484-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2748-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4152-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4192-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4192-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4192-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4192-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4192-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4192-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4960-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4960-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4960-6-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/4960-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4960-7-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4960-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4960-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads