modiloader | cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344

Analysis

max time kernel
119s
max time network
29s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 21:07

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General

Target

cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
Size

326KB
MD5

d19f2862fc6f9f407159e4a456a2bfb0
SHA1

684e5f9c2a52283d0f8cb481f0b35b7060977b77
SHA256

cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344
SHA512

e02814265d4c93fafa20a957f32fa8d709ebb0be4722b6da595854f1c5dc0b82f18849fecf73f033c85a4ad938cea4d3f961b8e9a38922717cb408277daf0ba8
SSDEEP

3072:ce2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38XV:csxD5cwohO+O1sVG0/pZ6iPC8

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/400-258-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2612	csrsll.exe
940	csrsll.exe
400	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.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-1-5-21-3692679935-4019334568-335155002-1000\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 1820 set thread context of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 2612 set thread context of 940	2612	csrsll.exe	34
PID 2612 set thread context of 400	2612	csrsll.exe	35

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1820-0-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1820-3-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/1820-89-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2572-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2572-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2572-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2572-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2572-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2572-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1820-107-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/files/0x0010000000016d64-131.dat	upx
behavioral1/memory/2572-145-0x0000000002B40000-0x0000000002B94000-memory.dmp	upx
behavioral1/memory/2572-149-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2612-152-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2612-212-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/400-245-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2612-246-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral1/memory/2572-249-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/940-239-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/940-255-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/400-258-0x0000000000400000-0x0000000000414000-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	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.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

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe
Token: SeDebugPrivilege	940	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
2612	csrsll.exe
940	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 1820 wrote to memory of 2572	1820	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	29
PID 2572 wrote to memory of 1264	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	30
PID 2572 wrote to memory of 1264	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	30
PID 2572 wrote to memory of 1264	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	30
PID 2572 wrote to memory of 1264	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	30
PID 1264 wrote to memory of 2084	1264	cmd.exe	32
PID 1264 wrote to memory of 2084	1264	cmd.exe	32
PID 1264 wrote to memory of 2084	1264	cmd.exe	32
PID 1264 wrote to memory of 2084	1264	cmd.exe	32
PID 2572 wrote to memory of 2612	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	33
PID 2572 wrote to memory of 2612	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	33
PID 2572 wrote to memory of 2612	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	33
PID 2572 wrote to memory of 2612	2572	cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe	33
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 940	2612	csrsll.exe	34
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35
PID 2612 wrote to memory of 400	2612	csrsll.exe	35

C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
"C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe
  "C:\Users\Admin\AppData\Local\Temp\cb75cc8ff7869114be4db1009d309d97dde436f1217bdac398813c4459732344N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BOKIY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1264
  - - 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:2084
- - 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:2612
  - - 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:940
  - - 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:400

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\BOKIY.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
326KB

MD5
15f5eb7047b5b2f366116d90d4ad4bb2

SHA1
202e0c97019cd0652c730aa690e8c2cea5510c8b

SHA256
b1638357bae48767b1fc0787bb559d6f9c6afdfecb4d1ef1586a82e2cc88faca

SHA512
4a74cdcf21c4589f32f6dd25def56997943e6c811392622262586699f5ac6dafd809615613d4dccd06bfe260cf0b0c450b12768233264e0f3638f25df0c34303

Download Submit
memory/400-258-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/400-245-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/940-239-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/940-255-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1820-26-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1820-90-0x00000000005A0000-0x00000000005F4000-memory.dmp

Filesize
336KB

Download
memory/1820-61-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1820-29-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1820-89-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1820-79-0x00000000004F0000-0x00000000004F2000-memory.dmp

Filesize
8KB

Download
memory/1820-41-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1820-71-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/1820-16-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1820-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1820-4-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1820-3-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1820-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1820-107-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2572-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-145-0x0000000002B40000-0x0000000002B94000-memory.dmp

Filesize
336KB

Download
memory/2572-149-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-151-0x0000000002B40000-0x0000000002B94000-memory.dmp

Filesize
336KB

Download
memory/2572-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2572-249-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-165-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2612-246-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2612-176-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2612-212-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2612-155-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2612-152-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads