modiloader | 23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 21:21

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General

Target

23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
Size

90KB
MD5

1a5bcaac1e20845893dc8e46cec0d157
SHA1

dd539f6f769898b072d3bf3f63b144e26f582a5a
SHA256

23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1
SHA512

15bbc1b37342f704bc2476444cdaa7662dd9fa6b69289d95433709308a4fbda4c5792744ab555b70cf9f6b7ae46ce7b54f72705f251234c70dd853eeddc974b1
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD5:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3b

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/944-260-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2988	csrsll.exe
1116	csrsll.exe
944	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.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-1-5-21-2039016743-699959520-214465309-1000\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 1824 set thread context of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 2988 set thread context of 1116	2988	csrsll.exe	35
PID 2988 set thread context of 944	2988	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1824-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1824-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1824-90-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1824-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/528-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/528-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1824-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/528-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000b000000012263-131.dat	upx
behavioral1/memory/528-141-0x00000000025C0000-0x0000000002613000-memory.dmp	upx
behavioral1/memory/528-151-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2988-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1116-244-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-248-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/528-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2988-250-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1116-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/944-260-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe
Token: SeDebugPrivilege	1116	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
2988	csrsll.exe
1116	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 1824 wrote to memory of 528	1824	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	30
PID 528 wrote to memory of 2024	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	31
PID 528 wrote to memory of 2024	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	31
PID 528 wrote to memory of 2024	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	31
PID 528 wrote to memory of 2024	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	31
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 2024 wrote to memory of 2964	2024	cmd.exe	33
PID 528 wrote to memory of 2988	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	34
PID 528 wrote to memory of 2988	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	34
PID 528 wrote to memory of 2988	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	34
PID 528 wrote to memory of 2988	528	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	34
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 1116	2988	csrsll.exe	35
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36
PID 2988 wrote to memory of 944	2988	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
"C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
  "C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\KLIRD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2024
  - - 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:2964
- - 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:2988
  - - 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:1116
  - - 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:944

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\KLIRD.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
a59908d114f165921edcad0d735a487d

SHA1
73e6d210e81054e19143910a0272ce4c41abc0cb

SHA256
05fc7925537365cb28ccbb4ecf6acff7cbf5bc89b980fde4548a4047ee8294f2

SHA512
0fa311f62c42569a78731bb09989b44b8333b3a76cc00d91707e3e5d3f44a8c95a7a0e6e66db8c89e0998b9b25469324b8997f84c2f5da57d52355a980cc10a3

Download Submit
memory/528-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-143-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/528-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/528-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-212-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/528-152-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/528-151-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-141-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/528-142-0x00000000025C0000-0x0000000002613000-memory.dmp

Filesize
332KB

Download
memory/528-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/528-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/944-260-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/944-248-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1116-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1116-244-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1824-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1824-79-0x0000000000560000-0x0000000000562000-memory.dmp

Filesize
8KB

Download
memory/1824-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1824-29-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/1824-41-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1824-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1824-71-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/1824-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1824-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1824-97-0x00000000027B0000-0x0000000002803000-memory.dmp

Filesize
332KB

Download
memory/1824-3-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1824-15-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1824-90-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1824-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1824-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2988-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2988-165-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2988-250-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2988-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2988-176-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads