modiloader | 9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2024, 22:02

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General

Target

9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe
Size

90KB
MD5

14cdf970ecf4cc0a8d4b6ff441d82e30
SHA1

842791efbe38a80f350441f55f1df5e04d0b421a
SHA256

9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76
SHA512

93d8b33bda730d5b61117aa1a25fe90689377e3f5798e3c00e3e8b892f337ee879f7d99d9431ee5f9920d3a144be90aa83851c25e933b75192dcd585bf83bb6a
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD3:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3l

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/868-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/868-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/868-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/868-61-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe

Executes dropped EXE 3 IoCs

pid	Process
3840	csrsll.exe
4328	csrsll.exe
868	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-1-5-21-4089630652-1596403869-279772308-1000\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 1988 set thread context of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 3840 set thread context of 4328	3840	csrsll.exe	95
PID 3840 set thread context of 868	3840	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1988-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1988-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3076-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3076-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1988-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3076-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b59-29.dat	upx
behavioral2/memory/3076-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3840-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/868-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3840-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/868-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/868-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/868-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/868-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3076-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4328-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/868-61-0x0000000000400000-0x0000000000414000-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	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.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	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe
Token: SeDebugPrivilege	4328	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe
3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe
3840	csrsll.exe
4328	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 1988 wrote to memory of 3076	1988	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	86
PID 3076 wrote to memory of 2800	3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	87
PID 3076 wrote to memory of 2800	3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	87
PID 3076 wrote to memory of 2800	3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	87
PID 2800 wrote to memory of 4728	2800	cmd.exe	90
PID 2800 wrote to memory of 4728	2800	cmd.exe	90
PID 2800 wrote to memory of 4728	2800	cmd.exe	90
PID 3076 wrote to memory of 3840	3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	91
PID 3076 wrote to memory of 3840	3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	91
PID 3076 wrote to memory of 3840	3076	9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe	91
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 4328	3840	csrsll.exe	95
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96
PID 3840 wrote to memory of 868	3840	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe
"C:\Users\Admin\AppData\Local\Temp\9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe
  "C:\Users\Admin\AppData\Local\Temp\9e50591254a3be6a55066f074beed101e842b856daa9e2731fa1d15158266c76N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3076
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CXUTX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2800
  - - 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:4728
- - 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:3840
  - - 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:4328
  - - 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:868

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\CXUTX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
1c943b0550e1d18a825d604e77faadf7

SHA1
b0d8202c089107f413017c6b52652ef19afd508e

SHA256
5323bcfd3684a88c280e7ebb2ca457e55010f93e017cbdeacc0da03f03a94ef9

SHA512
746319f60f527dd139bd1d32635f8816eb40a1786547eccad052f9277e9ed7959e7e8760021411205bdbc510e232f465361b359bee55fe776e7fea72a735ae5c

Download Submit
memory/868-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/868-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/868-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/868-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/868-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/868-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1988-5-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/1988-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1988-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1988-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1988-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/1988-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3076-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3076-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3076-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3076-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3076-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3840-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3840-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4328-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads