modiloader | 961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 02:11

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General

Target

961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe
Size

326KB
MD5

4a65e7c6091bbb66b16204baf2b39c1e
SHA1

a35ef91bef65b03ef3bfae35b17a4fbfc42f787a
SHA256

961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228
SHA512

50ecb1c0cdee6cc8bd245e528294233c619a7901f6d39c26b2cdd5a4b1e6c3d5c1a18b4a99fba78be01d4c129d5b9e52be41b6961b5f62b4f3a90c6a0d6947f5
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XVm:csxD5cwohO+O1sVG0/pZ6iPC87

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 3 IoCs

resource	yara_rule
behavioral2/memory/4512-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4512-61-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe

Executes dropped EXE 3 IoCs

pid	Process
2836	csrsll.exe
4956	csrsll.exe
4512	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-1-5-21-493223053-2004649691-1575712786-1000\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 548 set thread context of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 2836 set thread context of 4956	2836	csrsll.exe	102
PID 2836 set thread context of 4512	2836	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/548-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/548-5-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3364-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3364-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/548-10-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3364-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000d000000023a9f-28.dat	upx
behavioral2/memory/3364-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2836-39-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/2836-40-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4512-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2836-51-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/3364-54-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4512-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4512-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4956-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4512-61-0x0000000000400000-0x0000000000414000-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	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe
Token: SeDebugPrivilege	4956	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe
3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe
2836	csrsll.exe
4956	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 548 wrote to memory of 3364	548	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	84
PID 3364 wrote to memory of 3240	3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	91
PID 3364 wrote to memory of 3240	3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	91
PID 3364 wrote to memory of 3240	3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	91
PID 3240 wrote to memory of 4128	3240	cmd.exe	95
PID 3240 wrote to memory of 4128	3240	cmd.exe	95
PID 3240 wrote to memory of 4128	3240	cmd.exe	95
PID 3364 wrote to memory of 2836	3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	96
PID 3364 wrote to memory of 2836	3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	96
PID 3364 wrote to memory of 2836	3364	961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe	96
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4956	2836	csrsll.exe	102
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103
PID 2836 wrote to memory of 4512	2836	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe
"C:\Users\Admin\AppData\Local\Temp\961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:548
- C:\Users\Admin\AppData\Local\Temp\961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe
  "C:\Users\Admin\AppData\Local\Temp\961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3364
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SGJFD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3240
  - - 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:4128
- - 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:2836
  - - 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:4956
  - - 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:4512

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\SGJFD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
4a65e7c6091bbb66b16204baf2b39c1e

SHA1
a35ef91bef65b03ef3bfae35b17a4fbfc42f787a

SHA256
961fea8c5cb7d9a4571343adf68faf71ddd89d04a9e20b0fc6222cb2d2184228

SHA512
50ecb1c0cdee6cc8bd245e528294233c619a7901f6d39c26b2cdd5a4b1e6c3d5c1a18b4a99fba78be01d4c129d5b9e52be41b6961b5f62b4f3a90c6a0d6947f5

Download Submit
memory/548-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/548-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/548-6-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/548-5-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/548-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/548-10-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2836-51-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2836-39-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2836-40-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3364-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3364-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3364-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3364-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3364-54-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4512-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4512-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4956-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads