modiloader | 21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a

Analysis

max time kernel
148s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/11/2024, 20:45

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General

Target

21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
Size

90KB
MD5

82065998f457ad6ba0213134ec23d9af
SHA1

19273cab6654d9a4e814796cba799cb6b4a4b168
SHA256

21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a
SHA512

637f2235554cc40c3415a427eb48cb328818165918cc8c10cc26158aa7e5bcebba2fe1a6b094a81efca86d562f7ea49ea3d601eee08b09d89736c5bf7df2fb1b
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/1868-262-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1972	csrsll.exe
1524	csrsll.exe
1868	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.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-1-5-21-312935884-697965778-3955649944-1000\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 2028 set thread context of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 1972 set thread context of 1524	1972	csrsll.exe	36
PID 1972 set thread context of 1868	1972	csrsll.exe	37

UPX packed file 22 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2028-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2028-28-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2028-80-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2028-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2028-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1712-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1712-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1712-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1712-107-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2028-106-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1712-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1712-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1712-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0005000000004ed7-134.dat	upx
behavioral1/memory/1712-136-0x0000000003450000-0x00000000034A3000-memory.dmp	upx
behavioral1/memory/1712-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1972-213-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1868-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1972-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1712-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1524-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1868-262-0x0000000000400000-0x0000000000414000-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	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.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	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe
Token: SeDebugPrivilege	1524	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1972	csrsll.exe
1524	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 2028 wrote to memory of 1712	2028	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	31
PID 1712 wrote to memory of 2952	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	32
PID 1712 wrote to memory of 2952	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	32
PID 1712 wrote to memory of 2952	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	32
PID 1712 wrote to memory of 2952	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	32
PID 2952 wrote to memory of 1540	2952	cmd.exe	34
PID 2952 wrote to memory of 1540	2952	cmd.exe	34
PID 2952 wrote to memory of 1540	2952	cmd.exe	34
PID 2952 wrote to memory of 1540	2952	cmd.exe	34
PID 1712 wrote to memory of 1972	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	35
PID 1712 wrote to memory of 1972	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	35
PID 1712 wrote to memory of 1972	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	35
PID 1712 wrote to memory of 1972	1712	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	35
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1524	1972	csrsll.exe	36
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37
PID 1972 wrote to memory of 1868	1972	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
"C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
  "C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\RFGBA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2952
  - - 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:1540
- - 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:1972
  - - 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:1524
  - - 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:1868

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\RFGBA.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d16a9b208688f6a21d825eecd7564daf

SHA1
82d2e57aab5c568a0cf5e8819b0142c90ad32a87

SHA256
aae287bb066048f32c4d23b7fae99b2179bf8c62035cc45e574ae108e6289688

SHA512
ffb765a5b76c37fb5829f14360c95a8827e3ec6ab8ec9360308cd5413b3f5e746cb1677cef9d2b5ca6a4a3a4abef9ccf196a3d5c04893d7ce51600515376c06b

Download Submit
memory/1524-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-149-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1712-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1712-242-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1712-244-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1712-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-136-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1712-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-241-0x0000000003450000-0x00000000034A3000-memory.dmp

Filesize
332KB

Download
memory/1712-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1712-107-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1868-262-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1868-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1972-156-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1972-166-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1972-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1972-177-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1972-213-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2028-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-80-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2028-98-0x00000000024F0000-0x0000000002543000-memory.dmp

Filesize
332KB

Download
memory/2028-106-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-41-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2028-28-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2028-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2028-15-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2028-81-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2028-16-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2028-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2028-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads