modiloader | 775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fd

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
03-01-2025 16:00

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General

Target

775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
Size

90KB
MD5

616d05a5ad360542c7c51a149b73ae40
SHA1

c328327b75f024d4290bfa55800eaaf26b23d797
SHA256

775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fd
SHA512

252fbb55622a41c9640249295879981227a399422ffe902560138f89556af315133b1988a879c938cbc5eeb1caca5167cfc796a618140d6d4d72a7b0f4cbbb41
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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4828-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4828-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4828-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4828-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe

Executes dropped EXE 3 IoCs

pid	Process
2812	csrsll.exe
3420	csrsll.exe
4828	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-1-5-21-2437139445-1151884604-3026847218-1000\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 1060 set thread context of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 2812 set thread context of 3420	2812	csrsll.exe	101
PID 2812 set thread context of 4828	2812	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1060-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1060-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3120-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3120-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1060-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3120-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cb5-29.dat	upx
behavioral2/memory/2812-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3120-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2812-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2812-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4828-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4828-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2812-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3120-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3420-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4828-62-0x0000000000400000-0x0000000000414000-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	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	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe
Token: SeDebugPrivilege	3420	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
2812	csrsll.exe
3420	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 1060 wrote to memory of 3120	1060	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	83
PID 3120 wrote to memory of 3144	3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	88
PID 3120 wrote to memory of 3144	3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	88
PID 3120 wrote to memory of 3144	3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	88
PID 3144 wrote to memory of 3140	3144	cmd.exe	92
PID 3144 wrote to memory of 3140	3144	cmd.exe	92
PID 3144 wrote to memory of 3140	3144	cmd.exe	92
PID 3120 wrote to memory of 2812	3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	93
PID 3120 wrote to memory of 2812	3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	93
PID 3120 wrote to memory of 2812	3120	775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe	93
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 3420	2812	csrsll.exe	101
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102
PID 2812 wrote to memory of 4828	2812	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
"C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe
  "C:\Users\Admin\AppData\Local\Temp\775193831ba3b173dc1b9579f3d9ca5142b2891a64d9e39fd9a4266d34ee48fdN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3120
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NIIVC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3144
  - - 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:3140
- - 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:2812
  - - 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:3420
  - - 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:4828

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\NIIVC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4ab464e4896d8c29ef1efbc5ec4ddd8f

SHA1
6d6b245de036ae3b26b087408b307353423c0430

SHA256
e02041dc45c1b6df1c484eab8b291e8454d89c491bec2f62272d0ecae899282d

SHA512
2c6c1903e7144e032e84028055e17041d9e436541aeb5f7fb82b6f99ba54df27e1f218cb163ac12e00c503660c1647d86cc3833ddf911c460f8330242792f13e

Download Submit
memory/1060-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1060-3-0x00000000022C0000-0x00000000022C2000-memory.dmp

Filesize
8KB

Download
memory/1060-4-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/1060-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1060-6-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1060-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2812-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3120-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3120-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3120-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3120-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3120-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3120-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3420-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4828-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4828-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads