modiloader | 334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cb

Analysis

max time kernel
119s
max time network
113s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-01-2025 08:40

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General

Target

334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
Size

94KB
MD5

2ec9b63a3af42f5662684235b707d7f0
SHA1

eabd6c1c3399da30d892f4112b82824abb0ee96b
SHA256

334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cb
SHA512

f860a9658d240af71e30860b5e2d33fee1dda7c7baa59016654c822e3c30d802ff9d2b7a2f1b9956b09f0c012fbaacdbeda2a2477f70169a4fa855770df2f44e
SSDEEP

1536:/pdyL9GjGiwA1z0PmVggNJKbFD2BBMx1RiwmPJr3raDk5BRf13KH9m2POE/n:/pdyLALwACPmV3NYaYLiwIt3raA5BRfy

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/230068-147862-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
148376	csrsll.exe
230008	csrsll.exe
230068	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.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 2260 set thread context of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 148376 set thread context of 230008	148376	csrsll.exe	36
PID 148376 set thread context of 230068	148376	csrsll.exe	37

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2260-140-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2260-56892-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2260-73919-0x0000000002620000-0x0000000002676000-memory.dmp	upx
behavioral1/memory/148144-73923-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/148144-73924-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/148144-73928-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/148144-73929-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2260-73930-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/148144-73931-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000016e73-73966.dat	upx
behavioral1/memory/230068-147850-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/148376-147852-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/148144-147857-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/230008-147861-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/230068-147862-0x0000000000400000-0x0000000000414000-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	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe

Suspicious use of AdjustPrivilegeToken 60 IoCs

description	pid	Process
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe
Token: SeDebugPrivilege	230008	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
148376	csrsll.exe
230008	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 2260 wrote to memory of 148144	2260	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	31
PID 148144 wrote to memory of 148296	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	32
PID 148144 wrote to memory of 148296	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	32
PID 148144 wrote to memory of 148296	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	32
PID 148144 wrote to memory of 148296	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	32
PID 148296 wrote to memory of 148352	148296	cmd.exe	34
PID 148296 wrote to memory of 148352	148296	cmd.exe	34
PID 148296 wrote to memory of 148352	148296	cmd.exe	34
PID 148296 wrote to memory of 148352	148296	cmd.exe	34
PID 148144 wrote to memory of 148376	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	35
PID 148144 wrote to memory of 148376	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	35
PID 148144 wrote to memory of 148376	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	35
PID 148144 wrote to memory of 148376	148144	334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe	35
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230008	148376	csrsll.exe	36
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37
PID 148376 wrote to memory of 230068	148376	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
"C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe
  "C:\Users\Admin\AppData\Local\Temp\334fd6171e7c6f1abe744513b73181451458e072bd5a277595a313a06b8e07cbN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:148144
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OBFBP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:148296
  - - 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:148352
- - 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:148376
  - - 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:230008
  - - 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:230068

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\OBFBP.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
94KB

MD5
24e39abe8ad15f79510d0615938ea26e

SHA1
3f95a13dd4c438cbc0cb1c1fdc00fea1c946d595

SHA256
852ba00a5691b8b38d604d217f278e5b07251ab2352044d94df19a760cd527da

SHA512
e49c8fe440c3cc7c8a002507425648e932bf430ce0ee85396e4c797b84379a7a8f918c79ea9226496bfd1d1c47b4918ebfe2f865d12944a6f681efb102f7cece

Download Submit
memory/2260-73930-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2260-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2260-13-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2260-140-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2260-56892-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2260-56893-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2260-73919-0x0000000002620000-0x0000000002676000-memory.dmp

Filesize
344KB

Download
memory/2260-0-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/148144-73931-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148144-73971-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-73929-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148144-73928-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148144-73924-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148144-73923-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148144-73920-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148144-73973-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-73972-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-73926-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/148144-73970-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-147846-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-147845-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-147843-0x0000000003280000-0x00000000032D6000-memory.dmp

Filesize
344KB

Download
memory/148144-147857-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/148376-147852-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/230008-147861-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/230068-147850-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/230068-147862-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads