modiloader | 25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 10:43

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General

Target

25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
Size

90KB
MD5

957b70908c50dd22c94b691be2e17bf9
SHA1

477d429f30802c53669c4f1051ae67770943fc7d
SHA256

25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0
SHA512

f1f2431fa2b1ec0c3e4b19887dca611a25741da0dd61c9ef30d3682965389b90cfa18c3b34288e43078e14e9231ccc35cd1dd6fdc4df9a0af42f4b0c95f50a07
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDA:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE32

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/3856-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3856-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3856-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3856-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe

Executes dropped EXE 3 IoCs

pid	Process
2548	csrsll.exe
2472	csrsll.exe
3856	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-1-5-21-1045960512-3948844814-3059691613-1000\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 3672 set thread context of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 2548 set thread context of 2472	2548	csrsll.exe	102
PID 2548 set thread context of 3856	2548	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3672-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3672-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1456-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1456-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3672-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1456-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c94-29.dat	upx
behavioral2/memory/2548-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2548-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1456-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3856-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2548-51-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3856-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3856-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3856-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3856-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1456-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2472-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3856-61-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe
Token: SeDebugPrivilege	2472	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
2548	csrsll.exe
2472	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 3672 wrote to memory of 1456	3672	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	86
PID 1456 wrote to memory of 1936	1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	91
PID 1456 wrote to memory of 1936	1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	91
PID 1456 wrote to memory of 1936	1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	91
PID 1936 wrote to memory of 696	1936	cmd.exe	95
PID 1936 wrote to memory of 696	1936	cmd.exe	95
PID 1936 wrote to memory of 696	1936	cmd.exe	95
PID 1456 wrote to memory of 2548	1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	96
PID 1456 wrote to memory of 2548	1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	96
PID 1456 wrote to memory of 2548	1456	25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe	96
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 2472	2548	csrsll.exe	102
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103
PID 2548 wrote to memory of 3856	2548	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
"C:\Users\Admin\AppData\Local\Temp\25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Users\Admin\AppData\Local\Temp\25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe
  "C:\Users\Admin\AppData\Local\Temp\25e256429854e26f8e7bbd50c61b23966b1cb5a239f71103de5868bc9dfaccc0.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1456
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YPQNV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1936
  - - 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:696
- - 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:2548
  - - 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:2472
  - - 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:3856

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\YPQNV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9123e0a72ebebb4c73eb3894fa4a25d2

SHA1
ebd01806639858e47c444934604a95753884f2f3

SHA256
e3ea0e4249cbee4fe558e6fe9329e7a5c3279305aaa8502b8ef8dc058c56eb28

SHA512
e735f46cfd62ebec7f20be9b2fb4cc0afa5d06537f57837dc1247b6d1836264c00d1ff175276145bd57b9d0081a353b2c05c2423d18b27f94f04bb31571e3709

Download Submit
memory/1456-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1456-56-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1456-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1456-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1456-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1456-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2472-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2548-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2548-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3672-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/3672-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3672-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3672-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3672-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3672-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3856-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3856-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3856-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3856-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3856-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3856-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads