modiloader | 497863193b04c59812c86239ebf89db67cb6734994a942fd0779f24764796daa

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-09-2024 12:05

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General

Target

d9e568db435d0c71ddd6b56418384e00N.exe
Size

90KB
MD5

d9e568db435d0c71ddd6b56418384e00
SHA1

2291b66ec1f0026958ff2bf7b8ad2830413a23bf
SHA256

497863193b04c59812c86239ebf89db67cb6734994a942fd0779f24764796daa
SHA512

6046c116286415836633b350d6b66d651e43b2b64a158d2c17e5254c1e4e85cea7429cc4e86309aa52af7e9017711e558d9e00b8dd6cea92540a9acd7c222a23
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 Second Stage 2 IoCs

resource	yara_rule
behavioral1/memory/2452-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/2452-266-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
380	csrsll.exe
628	csrsll.exe
2452	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2604	d9e568db435d0c71ddd6b56418384e00N.exe
2604	d9e568db435d0c71ddd6b56418384e00N.exe
2604	d9e568db435d0c71ddd6b56418384e00N.exe
2604	d9e568db435d0c71ddd6b56418384e00N.exe
2604	d9e568db435d0c71ddd6b56418384e00N.exe

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3064-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3064-92-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3064-87-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3064-108-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3064-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2604-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3064-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3064-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/3064-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000a0000000120f9-134.dat	upx
behavioral1/memory/2604-148-0x0000000002650000-0x00000000026A3000-memory.dmp	upx
behavioral1/memory/380-153-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-156-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/380-215-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2604-264-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/380-261-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2452-258-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/628-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/628-265-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2452-266-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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 3064 set thread context of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 380 set thread context of 628	380	csrsll.exe	36
PID 380 set thread context of 2452	380	csrsll.exe	37

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	d9e568db435d0c71ddd6b56418384e00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d9e568db435d0c71ddd6b56418384e00N.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	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe
Token: SeDebugPrivilege	628	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3064	d9e568db435d0c71ddd6b56418384e00N.exe
2604	d9e568db435d0c71ddd6b56418384e00N.exe
380	csrsll.exe
628	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 3064 wrote to memory of 2604	3064	d9e568db435d0c71ddd6b56418384e00N.exe	30
PID 2604 wrote to memory of 2044	2604	d9e568db435d0c71ddd6b56418384e00N.exe	31
PID 2604 wrote to memory of 2044	2604	d9e568db435d0c71ddd6b56418384e00N.exe	31
PID 2604 wrote to memory of 2044	2604	d9e568db435d0c71ddd6b56418384e00N.exe	31
PID 2604 wrote to memory of 2044	2604	d9e568db435d0c71ddd6b56418384e00N.exe	31
PID 2044 wrote to memory of 1744	2044	cmd.exe	33
PID 2044 wrote to memory of 1744	2044	cmd.exe	33
PID 2044 wrote to memory of 1744	2044	cmd.exe	33
PID 2044 wrote to memory of 1744	2044	cmd.exe	33
PID 2604 wrote to memory of 380	2604	d9e568db435d0c71ddd6b56418384e00N.exe	34
PID 2604 wrote to memory of 380	2604	d9e568db435d0c71ddd6b56418384e00N.exe	34
PID 2604 wrote to memory of 380	2604	d9e568db435d0c71ddd6b56418384e00N.exe	34
PID 2604 wrote to memory of 380	2604	d9e568db435d0c71ddd6b56418384e00N.exe	34
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 628	380	csrsll.exe	36
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37
PID 380 wrote to memory of 2452	380	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe
"C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe
  "C:\Users\Admin\AppData\Local\Temp\d9e568db435d0c71ddd6b56418384e00N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\KRVHF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - 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:1744
- - 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:380
  - - 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:628
  - - 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:2452

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\KRVHF.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b5dc214d3acdb152c910756c8e5130ec

SHA1
7429d41395146dc9d2395f89fb6013e5c2823d2f

SHA256
4a958cc73a1581b1f97a428c0f555941cc1bdc73467a1c32039546adc9be2188

SHA512
1944e94f14d86cf790fca452226d6f1595ee1e53265e0d44f8acc87dd2f2ed4ab4f7ce2f2d9ca094ce7d93216036a34c03c00e7d0bfffab3d69d7ee7a3b8b433

Download Submit
memory/380-261-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/380-159-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/380-153-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/380-180-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/380-215-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/380-169-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/628-265-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/628-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-266-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2452-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-259-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-264-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-214-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-256-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-156-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-255-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-254-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-148-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-151-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-150-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/2604-149-0x0000000002650000-0x00000000026A3000-memory.dmp

Filesize
332KB

Download
memory/3064-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-29-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/3064-41-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/3064-61-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/3064-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/3064-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-80-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/3064-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-108-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-87-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-92-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3064-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/3064-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3064-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/3064-15-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads