modiloader | 84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56

Analysis

max time kernel
119s
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
07-01-2025 22:57

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General

Target

84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe
Size

90KB
MD5

0ce3c1cfb783bbabff601db92ad30a70
SHA1

de17607c224236aee1c3a3d737622d34820fff5e
SHA256

84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56
SHA512

aad79efa19f97a6d3c07d1f3a00f3f96305c33a408ca1646ad5c1c352e9bd0c5576048b01d305f780a1f968197174f18ea32e0fdd9fec2b7534e7940474c4cc9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDm:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3w

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/3024-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3024-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3024-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3024-60-0x0000000000400000-0x0000000000414000-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	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe

Executes dropped EXE 3 IoCs

pid	Process
1648	csrsll.exe
2304	csrsll.exe
3024	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 4556 set thread context of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 1648 set thread context of 2304	1648	csrsll.exe	93
PID 1648 set thread context of 3024	1648	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4556-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4556-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3944-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3944-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3944-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4556-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cbb-29.dat	upx
behavioral2/memory/3944-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1648-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1648-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3024-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3024-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3024-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3024-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1648-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3024-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3944-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2304-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3024-60-0x0000000000400000-0x0000000000414000-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	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.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	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe
Token: SeDebugPrivilege	2304	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe
3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe
1648	csrsll.exe
2304	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 4556 wrote to memory of 3944	4556	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	82
PID 3944 wrote to memory of 860	3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	83
PID 3944 wrote to memory of 860	3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	83
PID 3944 wrote to memory of 860	3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	83
PID 860 wrote to memory of 3428	860	cmd.exe	86
PID 860 wrote to memory of 3428	860	cmd.exe	86
PID 860 wrote to memory of 3428	860	cmd.exe	86
PID 3944 wrote to memory of 1648	3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	87
PID 3944 wrote to memory of 1648	3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	87
PID 3944 wrote to memory of 1648	3944	84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe	87
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 2304	1648	csrsll.exe	93
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94
PID 1648 wrote to memory of 3024	1648	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe
"C:\Users\Admin\AppData\Local\Temp\84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Users\Admin\AppData\Local\Temp\84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe
  "C:\Users\Admin\AppData\Local\Temp\84a4bf63b76e5a2a05c559405127ab1b7b14eb0b6c0dfcbe1b1a44dc47f27d56.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3944
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YKLIR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:860
  - - 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:3428
- - 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:1648
  - - 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:2304
  - - 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:3024

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\YKLIR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
218640a3ea23f377ebd57bfa486ab960

SHA1
c0c43cb99d2b385757e38635cf8e0a04c1608302

SHA256
0b1f22361edb4cc714f57317af64a009c7c3a0e0e8d480f5d077e2655a38c69a

SHA512
cdfbe940091730c4d5ba5793282df15a0006c98cbd1bcd30d09f11b558791262425c1edf6613783f231081d758478c47f7be44581fa4dfeec31d66c8ad3d2e06

Download Submit
memory/1648-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2304-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3024-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3944-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3944-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3944-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3944-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3944-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3944-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4556-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4556-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4556-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/4556-6-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4556-4-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4556-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads