modiloader | 8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 00:04

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General

Target

8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
Size

90KB
MD5

07e32b262f3b9492de8150b4d97f1916
SHA1

4b6aa261ecd0b9dd90c7244baae3faffb98597b8
SHA256

8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c
SHA512

be40340b90e5121c537f2a25aa686dd87ee1cb73775e3815f85eb4b425df4571a7430b8d32f0196cb9ccac7f8ac704f04c7ed76ca0fcd21b06bc3a9a6f0f2461
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDw:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE36

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 1 IoCs

resource	yara_rule
behavioral1/memory/1324-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2928	csrsll.exe
840	csrsll.exe
1324	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.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-1-5-21-4177215427-74451935-3209572229-1000\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 2668 set thread context of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2928 set thread context of 840	2928	csrsll.exe	36
PID 2928 set thread context of 1324	2928	csrsll.exe	37

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2668-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2668-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2668-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2668-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2668-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000d000000012281-132.dat	upx
behavioral1/memory/2612-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2928-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2928-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2612-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1324-260-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/840-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/840-261-0x0000000000400000-0x000000000040B000-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	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.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	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe
Token: SeDebugPrivilege	840	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
2928	csrsll.exe
840	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2668 wrote to memory of 2612	2668	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	30
PID 2612 wrote to memory of 772	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	31
PID 2612 wrote to memory of 772	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	31
PID 2612 wrote to memory of 772	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	31
PID 2612 wrote to memory of 772	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	31
PID 772 wrote to memory of 1372	772	cmd.exe	33
PID 772 wrote to memory of 1372	772	cmd.exe	33
PID 772 wrote to memory of 1372	772	cmd.exe	33
PID 772 wrote to memory of 1372	772	cmd.exe	33
PID 2612 wrote to memory of 2928	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	34
PID 2612 wrote to memory of 2928	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	34
PID 2612 wrote to memory of 2928	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	34
PID 2612 wrote to memory of 2928	2612	8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe	34
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 840	2928	csrsll.exe	36
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37
PID 2928 wrote to memory of 1324	2928	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
"C:\Users\Admin\AppData\Local\Temp\8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Users\Admin\AppData\Local\Temp\8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe
  "C:\Users\Admin\AppData\Local\Temp\8fc01c00c81cdbb5bad064c67da83fca6d63ae7aefaae2bced52facfb4899a2c.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\KNDIW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:772
  - - 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:1372
- - 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:2928
  - - 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:840
  - - 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:1324

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

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\KNDIW.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
03b080a31b9c8baa753298b9fdef1fc4

SHA1
8e56689e3c443ffe95433c1f2acecc20cb664400

SHA256
b705419e4ae118a5e08606281992090a58120917764ed48d21f145d46a301bd1

SHA512
a892170ad8fbce95424a8ca8c0b1ecf1f73252e75252e7773859d8084e8e693cad5278ff45c48a0eddbba16c835e927a597be83b4d1cb96ffaea07518af8fb44

Download Submit
memory/840-261-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/840-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1324-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2612-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-249-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-251-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-252-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-146-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-147-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-148-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-149-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2612-258-0x0000000003230000-0x0000000003283000-memory.dmp

Filesize
332KB

Download
memory/2668-29-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2668-15-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2668-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2668-41-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2668-61-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2668-71-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2668-79-0x00000000003F0000-0x00000000003F2000-memory.dmp

Filesize
8KB

Download
memory/2668-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2668-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2668-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2668-3-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2668-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2668-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2668-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2668-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2928-177-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2928-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2928-166-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2928-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2928-156-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads