modiloader | 589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614

Analysis

max time kernel
119s
max time network
120s
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 21:57

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General

Target

589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe
Size

90KB
MD5

cda5320885d1774094a0aa711b51dea0
SHA1

f5e4127a4028f14f85a2c3faf72e2845190b8b99
SHA256

589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614
SHA512

e88dc72c40ed8a5ef53e24681a8a878ec57e0f6adbe5ef02ea4d4b081db81f5098943ec6ebe0652ca83929a3359dace264826d57b973d41fa8c7064b76d669bb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDA:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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/3612-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3612-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3612-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3612-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe

Executes dropped EXE 3 IoCs

pid	Process
3560	csrsll.exe
1308	csrsll.exe
3612	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-1-5-21-2878641211-696417878-3864914810-1000\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 2556 set thread context of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 3560 set thread context of 1308	3560	csrsll.exe	101
PID 3560 set thread context of 3612	3560	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2556-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2556-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4720-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023be3-29.dat	upx
behavioral2/memory/4720-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3560-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3560-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3612-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3612-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3612-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3612-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3612-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3560-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4720-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1308-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3612-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe
Token: SeDebugPrivilege	1308	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe
4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe
3560	csrsll.exe
1308	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 2556 wrote to memory of 4720	2556	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	83
PID 4720 wrote to memory of 2540	4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	86
PID 4720 wrote to memory of 2540	4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	86
PID 4720 wrote to memory of 2540	4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	86
PID 2540 wrote to memory of 4460	2540	cmd.exe	90
PID 2540 wrote to memory of 4460	2540	cmd.exe	90
PID 2540 wrote to memory of 4460	2540	cmd.exe	90
PID 4720 wrote to memory of 3560	4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	91
PID 4720 wrote to memory of 3560	4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	91
PID 4720 wrote to memory of 3560	4720	589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe	91
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 1308	3560	csrsll.exe	101
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102
PID 3560 wrote to memory of 3612	3560	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe
"C:\Users\Admin\AppData\Local\Temp\589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Users\Admin\AppData\Local\Temp\589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe
  "C:\Users\Admin\AppData\Local\Temp\589b45f3892235811b589ccef148003ec9a3e662f6419186c363f32da7186614N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WNBCX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2540
  - - 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:4460
- - 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:3560
  - - 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:1308
  - - 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:3612

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\WNBCX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
e45177ef8eab4f1b0890574f49aa0465

SHA1
84fea1e53c768232e6b52b961bd1e0c7710fe0da

SHA256
800949afc273b060d0ca87c1c3f60a61eb0ced3d79cd60267c477a03ee6ed0d9

SHA512
dc005e9bf6b8a9d7945969a38326a33eefa8577749a22792a1f3e12b1ea559c6afebf7e843f7f9ca690321389efccd5c7ce3285a4cdc3a80518340085ee7fb02

Download Submit
memory/1308-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/2556-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2556-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/2556-5-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/2556-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2556-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3560-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3560-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3560-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3612-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3612-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3612-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3612-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3612-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3612-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4720-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4720-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads