modiloader | 645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63

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
24/11/2024, 19:07

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General

Target

645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
Size

90KB
MD5

f5686b93f7aa2f187d85609f6dfafbd3
SHA1

ff0123f7363397e6c969adefbc21b0f0204f56ce
SHA256

645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63
SHA512

4337d08a323e6240cf313f396a0330aa9c6bc6ff03f5537467f767876db61b0ff315359e18f5b85a42124b31fbe871233127fe6c796c0d05892eb6b38116ec95
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3K

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/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe

Executes dropped EXE 3 IoCs

pid	Process
1380	csrsll.exe
4892	csrsll.exe
4896	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-1-5-21-3756129449-3121373848-4276368241-1000\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 2432 set thread context of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 1380 set thread context of 4892	1380	csrsll.exe	95
PID 1380 set thread context of 4896	1380	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2432-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2432-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1876-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1876-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1876-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2432-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b94-29.dat	upx
behavioral2/memory/1876-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1380-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1380-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4892-46-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4896-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1380-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4896-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1876-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4892-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4896-62-0x0000000000400000-0x0000000000414000-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	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.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	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe
Token: SeDebugPrivilege	4892	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
1380	csrsll.exe
4892	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 2432 wrote to memory of 1876	2432	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	87
PID 1876 wrote to memory of 4104	1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	88
PID 1876 wrote to memory of 4104	1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	88
PID 1876 wrote to memory of 4104	1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	88
PID 4104 wrote to memory of 332	4104	cmd.exe	91
PID 4104 wrote to memory of 332	4104	cmd.exe	91
PID 4104 wrote to memory of 332	4104	cmd.exe	91
PID 1876 wrote to memory of 1380	1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	92
PID 1876 wrote to memory of 1380	1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	92
PID 1876 wrote to memory of 1380	1876	645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe	92
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4892	1380	csrsll.exe	95
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96
PID 1380 wrote to memory of 4896	1380	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
"C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe
  "C:\Users\Admin\AppData\Local\Temp\645e2bea7b3f8d7326c349974c89051fb2fb1ed87dc08543077281f23d3a4e63.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NJGXV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4104
  - - 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:332
- - 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:1380
  - - 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:4892
  - - 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:4896

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\NJGXV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
29abfe617de33a86901df71827c04bad

SHA1
40e68a2ca2db91dbb45fc2f26326dba3d554c68d

SHA256
a313a6223a36acd27f94d8926897d02792a54a8909f7676fe98b0956a08da60c

SHA512
612e88f2e03db4d889bad3d6bf7cbcf60380d2057862b5950e0033e46dbeafe6e9656829a2a91a0542f3b6cbfbde669220640d6a6afa19b78088fb1fe6fdb529

Download Submit
memory/1380-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1380-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1380-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1876-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1876-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2432-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/2432-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2432-8-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/2432-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2432-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/2432-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4892-46-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4892-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4896-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads