modiloader | 4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 06:13

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General

Target

4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
Size

300KB
MD5

f0b00258f5d8928dbbf96f2b775d7a44
SHA1

79fd5119a8113fe7ab857fe4095579b9c0309786
SHA256

4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b
SHA512

1ecba1595ef2e9575b27ea30a7c5d8a684daa422c3d20408c02a6d6ebc059e3e4d5f322ede459f00376405dc083cd7bd7eb293dbe1f1a2ea171e3f4948fd433e
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38Gs:UsxD5cwohO+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/2352-253-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1640	csrsll.exe
292	csrsll.exe
2352	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2984 set thread context of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 1640 set thread context of 292	1640	csrsll.exe	35
PID 1640 set thread context of 2352	1640	csrsll.exe	36

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/640-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/640-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/640-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/640-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/640-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/640-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/640-244-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2352-240-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/640-235-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/292-250-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2352-253-0x0000000000400000-0x0000000000414000-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	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe
Token: SeDebugPrivilege	292	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
1640	csrsll.exe
292	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 2984 wrote to memory of 640	2984	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	30
PID 640 wrote to memory of 2648	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	31
PID 640 wrote to memory of 2648	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	31
PID 640 wrote to memory of 2648	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	31
PID 640 wrote to memory of 2648	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	31
PID 2648 wrote to memory of 2916	2648	cmd.exe	33
PID 2648 wrote to memory of 2916	2648	cmd.exe	33
PID 2648 wrote to memory of 2916	2648	cmd.exe	33
PID 2648 wrote to memory of 2916	2648	cmd.exe	33
PID 640 wrote to memory of 1640	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	34
PID 640 wrote to memory of 1640	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	34
PID 640 wrote to memory of 1640	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	34
PID 640 wrote to memory of 1640	640	4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe	34
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 292	1640	csrsll.exe	35
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36
PID 1640 wrote to memory of 2352	1640	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
"C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe
  "C:\Users\Admin\AppData\Local\Temp\4bde86e194bd86c05b9b00401363b1fc7a160cee5e3a677327e9099f4528206b.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\JIWDM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2648
  - - 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:2916
- - 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:1640
  - - 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:292
  - - 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:2352

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\JIWDM.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
bde35094587e6ef87a5ee14a03fbed26

SHA1
f7c622ac763873e10449f1c754a32346e7286b2a

SHA256
6acd26a2b386274258413d3058a43fe02dad619ad3cbaecd83660bcf7012eb42

SHA512
afd683732f2970b2e79d1d59c320964ef0ce324a8cee0ea5e6598fdb2c64f7d89b484f35d63100ba13515dd50c3f5212dc5be8e1ac2ece3a1b3421ecf5ce8f2c

Download Submit
memory/292-250-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-235-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-244-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/640-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/640-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1640-171-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/1640-149-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1640-159-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2352-240-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2352-253-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2984-82-0x00000000003F0000-0x00000000003F2000-memory.dmp

Filesize
8KB

Download
memory/2984-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2984-90-0x0000000000460000-0x0000000000462000-memory.dmp

Filesize
8KB

Download
memory/2984-15-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2984-3-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2984-85-0x0000000000450000-0x0000000000452000-memory.dmp

Filesize
8KB

Download
memory/2984-27-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2984-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2984-77-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/2984-69-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2984-59-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2984-5-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2984-39-0x0000000000350000-0x0000000000351000-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