modiloader | 4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 12:05

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General

Target

4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
Size

94KB
MD5

4cefdc9b66c1111d871565339dd0a40e
SHA1

b7accad6b62542bf278cb5e59c2ceacf49e53a6f
SHA256

4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591
SHA512

f36a7ba9dfb09793d718f0c1462a0a96c602f12f0896e055fac2a77ddfd2c7a13aa669f454f9af7bd6ddab55f4b976304ab367a7ca2306964785477181152e1b
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/E:/pdyLALwACPmV3NYaYLiwIt3raA5BRfl

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/163236-147865-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
76816	csrsll.exe
163168	csrsll.exe
163236	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.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 2748 set thread context of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 76816 set thread context of 163168	76816	csrsll.exe	36
PID 76816 set thread context of 163236	76816	csrsll.exe	37

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2748-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2748-151-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2748-33819-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2748-73919-0x0000000001D80000-0x0000000001DD6000-memory.dmp	upx
behavioral1/memory/72032-73924-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/72032-73922-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/72032-73927-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/72032-73928-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2748-73929-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/72032-73930-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x00090000000120ff-73973.dat	upx
behavioral1/memory/72032-106844-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/163236-147851-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/76816-147856-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/72032-147861-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/163168-147864-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/163236-147865-0x0000000000400000-0x0000000000414000-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	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.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	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe
Token: SeDebugPrivilege	163168	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
76816	csrsll.exe
163168	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 2748 wrote to memory of 72032	2748	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	30
PID 72032 wrote to memory of 75612	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	31
PID 72032 wrote to memory of 75612	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	31
PID 72032 wrote to memory of 75612	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	31
PID 72032 wrote to memory of 75612	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	31
PID 75612 wrote to memory of 76664	75612	cmd.exe	33
PID 75612 wrote to memory of 76664	75612	cmd.exe	33
PID 75612 wrote to memory of 76664	75612	cmd.exe	33
PID 75612 wrote to memory of 76664	75612	cmd.exe	33
PID 72032 wrote to memory of 76816	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	34
PID 72032 wrote to memory of 76816	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	34
PID 72032 wrote to memory of 76816	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	34
PID 72032 wrote to memory of 76816	72032	4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe	34
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163168	76816	csrsll.exe	36
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37
PID 76816 wrote to memory of 163236	76816	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
"C:\Users\Admin\AppData\Local\Temp\4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2748
- C:\Users\Admin\AppData\Local\Temp\4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe
  "C:\Users\Admin\AppData\Local\Temp\4aafca9bd8a171da095c64c97d8ef9458428254316246b5c7722fcae4bd6e591.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:72032
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\NLJNB.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:75612
  - - 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:76664
- - 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:76816
  - - 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:163168
  - - 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:163236

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\NLJNB.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
57b7d5b13c8e345349efcc6b008c53c6

SHA1
778e1e1d3f4eba1c250c8934787c6040ad4cbe1a

SHA256
e87de403ded5e8c54650377a9c0bc875ac61e242089d30439ea142cca6bb4715

SHA512
752bbadb36e1bc2d8dc0082b3be31dc13f001dfe5aebd827834fd2dc3fee3492b12bdf6a21035b05e0c5a6b0b98f076ac4d3a40bb403c5d2d6c5d5c01222b46e

Download Submit
memory/2748-73929-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2748-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2748-13-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2748-151-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2748-33819-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2748-33820-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2748-73919-0x0000000001D80000-0x0000000001DD6000-memory.dmp

Filesize
344KB

Download
memory/2748-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/72032-73930-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-73970-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/72032-73928-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-73922-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-73926-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/72032-73924-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-73972-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/72032-73971-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/72032-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-73927-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-73969-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/72032-106844-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-119604-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/72032-132567-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/72032-147861-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/72032-145735-0x0000000003310000-0x0000000003366000-memory.dmp

Filesize
344KB

Download
memory/76816-147856-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/163168-147864-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/163236-147851-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/163236-147865-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads