modiloader | 08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 03:51

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General

Target

08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
Size

90KB
MD5

a10abf4151142a927086af48c2dc3ce0
SHA1

06e244d840229c958f5b1761c22aee1ad53ad678
SHA256

08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62
SHA512

50e626c4074808cdbdd344b596cedefd5ee635edc8d015cfa423a14006b96657f9549f00a3a60e0ab36f471544db065a61b27223f696e366f63944e82c266f6f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/1632-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2732	csrsll.exe
2476	csrsll.exe
1632	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.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-1-5-21-3533259084-2542256011-65585152-1000\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 2240 set thread context of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2732 set thread context of 2476	2732	csrsll.exe	33
PID 2732 set thread context of 1632	2732	csrsll.exe	34

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2240-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2240-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2240-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2240-78-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1956-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1956-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2240-107-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1956-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1956-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1956-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1956-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00090000000120ff-132.dat	upx
behavioral1/memory/1956-134-0x0000000000730000-0x0000000000783000-memory.dmp	upx
behavioral1/memory/2732-152-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1956-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2732-210-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1632-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1956-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2732-254-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2476-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1632-262-0x0000000000400000-0x0000000000414000-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	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	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe
Token: SeDebugPrivilege	2476	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
2732	csrsll.exe
2476	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 2240 wrote to memory of 1956	2240	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	28
PID 1956 wrote to memory of 2592	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	29
PID 1956 wrote to memory of 2592	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	29
PID 1956 wrote to memory of 2592	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	29
PID 1956 wrote to memory of 2592	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	29
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 2592 wrote to memory of 2892	2592	cmd.exe	31
PID 1956 wrote to memory of 2732	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	32
PID 1956 wrote to memory of 2732	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	32
PID 1956 wrote to memory of 2732	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	32
PID 1956 wrote to memory of 2732	1956	08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe	32
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 2476	2732	csrsll.exe	33
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34
PID 2732 wrote to memory of 1632	2732	csrsll.exe	34

C:\Users\Admin\AppData\Local\Temp\08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
"C:\Users\Admin\AppData\Local\Temp\08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe
  "C:\Users\Admin\AppData\Local\Temp\08cbcc91b333769ed8e632e50715cf534867181132b3f31a7036999fdf358d62N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SKTQK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - 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:2892
- - 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:2732
  - - 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:2476
  - - 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:1632

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\SKTQK.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8747c1fcbf21c6b23c2801067cd9944f

SHA1
eb7eba37392bb868869dc998bcbed13d5c57df3b

SHA256
f4c5c57903df8f76b4541bb8a19e5bcb5044eae9ea4f79ac34dd09ca1ffc7647

SHA512
2f020d73a71cd322748f214c8c624413c9a3ff7ff9ded94e629a419adbb3ab5395e32f8d5cd47d0c839d584df020792d852d4814b31f48e476625f963b4b28f1

Download Submit
memory/1632-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1632-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1956-134-0x0000000000730000-0x0000000000783000-memory.dmp

Filesize
332KB

Download
memory/1956-242-0x0000000000730000-0x0000000000783000-memory.dmp

Filesize
332KB

Download
memory/1956-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-147-0x0000000000730000-0x0000000000783000-memory.dmp

Filesize
332KB

Download
memory/1956-148-0x0000000000730000-0x0000000000783000-memory.dmp

Filesize
332KB

Download
memory/1956-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-250-0x0000000000730000-0x0000000000783000-memory.dmp

Filesize
332KB

Download
memory/1956-240-0x0000000000730000-0x0000000000783000-memory.dmp

Filesize
332KB

Download
memory/1956-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1956-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2240-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2240-19-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2240-70-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2240-78-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2240-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2240-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2240-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2240-79-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download
memory/2240-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2240-28-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2240-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2240-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2240-107-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2240-60-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2240-40-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2476-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2732-177-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2732-210-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2732-254-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2732-166-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2732-156-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2732-152-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads