modiloader | 0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe

Analysis

max time kernel
149s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 19:42

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General

Target

0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
Size

90KB
MD5

594a199eee503d801b7c053f6b38ba97
SHA1

1e6e691502fb0cc18e74414691368a9dbd74922f
SHA256

0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe
SHA512

53231153546a1f5935d1224bf715b1cef845c72dd2902b110848e67641f894d4fba52dead44975825ea040c3e92e9fbd6bd785a21e6fd100ad7d0d9d6771688f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDp:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3r

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/696-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1516	csrsll.exe
956	csrsll.exe
696	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2644 set thread context of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 1516 set thread context of 956	1516	csrsll.exe	35
PID 1516 set thread context of 696	1516	csrsll.exe	36

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2644-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2644-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2644-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1488-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1488-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2644-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1488-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1488-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1488-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000b000000012280-131.dat	upx
behavioral1/memory/1488-133-0x0000000002710000-0x0000000002763000-memory.dmp	upx
behavioral1/memory/1488-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1516-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1516-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1488-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/696-255-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/956-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/696-262-0x0000000000400000-0x0000000000414000-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	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.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	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe
Token: SeDebugPrivilege	956	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
1516	csrsll.exe
956	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 2644 wrote to memory of 1488	2644	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	30
PID 1488 wrote to memory of 1408	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	31
PID 1488 wrote to memory of 1408	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	31
PID 1488 wrote to memory of 1408	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	31
PID 1488 wrote to memory of 1408	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	31
PID 1408 wrote to memory of 2620	1408	cmd.exe	33
PID 1408 wrote to memory of 2620	1408	cmd.exe	33
PID 1408 wrote to memory of 2620	1408	cmd.exe	33
PID 1408 wrote to memory of 2620	1408	cmd.exe	33
PID 1488 wrote to memory of 1516	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	34
PID 1488 wrote to memory of 1516	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	34
PID 1488 wrote to memory of 1516	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	34
PID 1488 wrote to memory of 1516	1488	0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe	34
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 956	1516	csrsll.exe	35
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36
PID 1516 wrote to memory of 696	1516	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
"C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe
  "C:\Users\Admin\AppData\Local\Temp\0f1f3ae76ba3f30eb24e802d3c12fbf462d85dae3ae4eec71058bf6d0c33dafe.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\FHXUU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1408
  - - 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:2620
- - 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:1516
  - - 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:956
  - - 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:696

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\FHXUU.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
59b204ff54f7bf263aedf9e814225a27

SHA1
e8d6f3923449de754864afe1c5e77ddb38b27177

SHA256
a4c7572ad0ca5371956cc8e4cff690e09724b2ee75a8ee5fd2f8b5ec51e05797

SHA512
af8c3bcb66ae37f664114322f5f2e66af6410d9ca479695bbf5707f4531de2db98c4588bb6dc499cf4d5f155f7bb00728c07a276cf6fe7e5cdf474c3a1cb7abb

Download Submit
memory/696-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/696-255-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/956-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-243-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-244-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-146-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-147-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-133-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-242-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-148-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1488-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1488-241-0x0000000002710000-0x0000000002763000-memory.dmp

Filesize
332KB

Download
memory/1488-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1516-176-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1516-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1516-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1516-165-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1516-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2644-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-41-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2644-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2644-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-71-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2644-79-0x0000000000480000-0x0000000000482000-memory.dmp

Filesize
8KB

Download
memory/2644-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2644-15-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2644-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2644-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2644-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads