modiloader | 4ca293fe0a4d58ea5b5072eca47230527d1eb3eed176f85863063208fb3d641c

Analysis

max time kernel
142s
max time network
136s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 13:04

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General

Target

e1bce9fa204b90eab1a70e1c10514877.exe
Size

308KB
MD5

e1bce9fa204b90eab1a70e1c10514877
SHA1

b182cf33c30cd0051b36f1a6d2b10d94d60845dc
SHA256

4ca293fe0a4d58ea5b5072eca47230527d1eb3eed176f85863063208fb3d641c
SHA512

f3c00a7a510170231f6b0c3b62730aed124721adb6bf295bed17d4c00fbb3b89cd9dd6e212b87480498cddc0dd7557df0d8ce7ac4b2261e8804ec8368c383faa
SSDEEP

6144:Yo890AlTPq3OVzGgTmPN72kYinMjIirxE2hGXRJWUqH07j1:YoUTC3OVGVPrYxjIwKJj7R

Score

10^/10

modiloader evasion persistence trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	winlogon.exe

ModiLoader Second Stage 22 IoCs

resource	yara_rule
behavioral1/memory/1692-3-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1692-4-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1692-6-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1692-7-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1692-14-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-31-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-79-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-80-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-85-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-86-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-87-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-88-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-89-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-91-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-92-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-93-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-94-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-95-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-96-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-97-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-98-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/1992-99-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
1376	winlogon.exe
1992	winlogon.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-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\winlogon.exe"	winlogon.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	e1bce9fa204b90eab1a70e1c10514877.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	winlogon.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	winlogon.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 1376 set thread context of 1992	1376	winlogon.exe	33

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\ntdtcstp.dll	winlogon.exe
File created	C:\Windows\winlogon.exe	e1bce9fa204b90eab1a70e1c10514877.exe
File opened for modification	C:\Windows\winlogon.exe	e1bce9fa204b90eab1a70e1c10514877.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1692	e1bce9fa204b90eab1a70e1c10514877.exe
Token: SeBackupPrivilege	2696	vssvc.exe
Token: SeRestorePrivilege	2696	vssvc.exe
Token: SeAuditPrivilege	2696	vssvc.exe
Token: SeDebugPrivilege	1992	winlogon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2176	e1bce9fa204b90eab1a70e1c10514877.exe
1376	winlogon.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 2176 wrote to memory of 1692	2176	e1bce9fa204b90eab1a70e1c10514877.exe	28
PID 1692 wrote to memory of 1376	1692	e1bce9fa204b90eab1a70e1c10514877.exe	32
PID 1692 wrote to memory of 1376	1692	e1bce9fa204b90eab1a70e1c10514877.exe	32
PID 1692 wrote to memory of 1376	1692	e1bce9fa204b90eab1a70e1c10514877.exe	32
PID 1692 wrote to memory of 1376	1692	e1bce9fa204b90eab1a70e1c10514877.exe	32
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33
PID 1376 wrote to memory of 1992	1376	winlogon.exe	33

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	winlogon.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\e1bce9fa204b90eab1a70e1c10514877.exe
"C:\Users\Admin\AppData\Local\Temp\e1bce9fa204b90eab1a70e1c10514877.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\e1bce9fa204b90eab1a70e1c10514877.exe
  "C:\Users\Admin\AppData\Local\Temp\e1bce9fa204b90eab1a70e1c10514877.exe"
  2⤵
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\winlogon.exe
    "C:\Windows\winlogon.exe" \melt "C:\Users\Admin\AppData\Local\Temp\e1bce9fa204b90eab1a70e1c10514877.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1376
  - - C:\Windows\winlogon.exe
      "C:\Windows\winlogon.exe"
      4⤵
      UAC bypass
      Executes dropped EXE
      Adds Run key to start application
      Checks whether UAC is enabled
      Drops file in Windows directory
      Suspicious use of AdjustPrivilegeToken
      System policy modification
      PID:1992

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2696

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

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\winlogon.exe

Filesize
308KB

MD5
e1bce9fa204b90eab1a70e1c10514877

SHA1
b182cf33c30cd0051b36f1a6d2b10d94d60845dc

SHA256
4ca293fe0a4d58ea5b5072eca47230527d1eb3eed176f85863063208fb3d641c

SHA512
f3c00a7a510170231f6b0c3b62730aed124721adb6bf295bed17d4c00fbb3b89cd9dd6e212b87480498cddc0dd7557df0d8ce7ac4b2261e8804ec8368c383faa

Download Submit
memory/1376-26-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1692-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1692-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1692-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1692-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1692-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1692-15-0x0000000001F60000-0x0000000001F6C000-memory.dmp

Filesize
48KB

Download
memory/1692-18-0x0000000001F60000-0x0000000001F6C000-memory.dmp

Filesize
48KB

Download
memory/1992-83-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/1992-89-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-31-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-80-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-99-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-84-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1992-85-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-86-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-87-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-88-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-98-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-91-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-92-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-93-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-94-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-95-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-96-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1992-97-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2176-5-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2176-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads