modiloader | 286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b

Analysis

max time kernel
149s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29/04/2024, 19:46

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe
Size 308KB
Sample240429-yhdvfabb34
SHA256 286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b
MD5 2521d6a6082ff0e32151a65c8e8e3c46
SHA1 ed500d73c755432c74018d4a8b85244b78761209
SHA512 64f706d375d6f74f9b95c802bcdd9013f07903ffcd88d7af24a374bb29b779b57fa631341ac7e0dbbf54fdd7986abef28484a65785dca10744d80226b229b7e6
SSDEEP 3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader persistence trojan upx

Malware Config

Signatures

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

Detects Windows executables referencing non-Windows User-Agents 4 IoCs

resource	yara_rule
behavioral2/memory/1444-51-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1444-55-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1444-56-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/1444-58-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1444-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1444-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1444-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1444-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

UPX dump on OEP (original entry point) 11 IoCs

resource	yara_rule
behavioral2/memory/4596-4-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4596-6-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4596-10-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/1444-45-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/1444-50-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/1444-51-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/1444-55-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/1444-56-0x0000000000400000-0x0000000000414000-memory.dmp	UPX
behavioral2/memory/4596-54-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/4064-57-0x0000000000400000-0x000000000040B000-memory.dmp	UPX
behavioral2/memory/1444-58-0x0000000000400000-0x0000000000414000-memory.dmp	UPX

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe

Executes dropped EXE 3 IoCs

pid	Process
4860	csrsll.exe
4064	csrsll.exe
1444	csrsll.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4596-4-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4596-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4596-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1444-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1444-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1444-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1444-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1444-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4596-54-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4064-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1444-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-3726321484-1950364574-433157660-1000\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 4952 set thread context of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4860 set thread context of 4064	4860	csrsll.exe	93
PID 4860 set thread context of 1444	4860	csrsll.exe	94

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe
Token: SeDebugPrivilege	4064	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe
4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe
4860	csrsll.exe
4064	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4952 wrote to memory of 4596	4952	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	87
PID 4596 wrote to memory of 2360	4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	88
PID 4596 wrote to memory of 2360	4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	88
PID 4596 wrote to memory of 2360	4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	88
PID 2360 wrote to memory of 1832	2360	cmd.exe	91
PID 2360 wrote to memory of 1832	2360	cmd.exe	91
PID 2360 wrote to memory of 1832	2360	cmd.exe	91
PID 4596 wrote to memory of 4860	4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	92
PID 4596 wrote to memory of 4860	4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	92
PID 4596 wrote to memory of 4860	4596	286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe	92
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 4064	4860	csrsll.exe	93
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94
PID 4860 wrote to memory of 1444	4860	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe
"C:\Users\Admin\AppData\Local\Temp\286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Users\Admin\AppData\Local\Temp\286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe
  "C:\Users\Admin\AppData\Local\Temp\286b052e9066c0321d8bab07071486d96244476e922260460498daa30d86835b.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4596
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TYKLI.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - 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
      PID:1832
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4860
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4064
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      PID:1444

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

TYKLI.txt

Path C:\Users\Admin\AppData\Local\Temp\TYKLI.txt
Size 145B
SHA256 08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff
MD5 4eb61ec7816c34ec8c125acadc57ec1b
SHA1 b0015cc865c0bb1a027be663027d3829401a31cc
SHA512 f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1
MD5 SHA1 SHA512

Submit Download

csrsll.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
Size 308KB
SHA256 d3d7f6020495decfa6f969d396a78dd8766a60455372ff07ddcc2a0f0cbcb348
MD5 cf3b43e573af30f2442fb4165d2fa67a
SHA1 945b3d66d8f52254c66e9190101168bc2f94fed4
SHA512 1ab7c7a8c9666ea4eacc5369b9ada1b7970ecd2a89c63f042a70f38c995d5c74498941d884b6f0928c78a711bbf763574ac78cbe2dee3084f3ed444bc8421b29
SSDEEP 3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1444-56-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/1444-58-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/1444-51-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/1444-50-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/1444-45-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/1444-55-0x0000000000400000-0x0000000000414000-memory.dmp

Download

memory/4064-57-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/4596-6-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/4596-54-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/4596-10-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/4596-4-0x0000000000400000-0x000000000040B000-memory.dmp

Download

memory/4860-37-0x00000000021E0000-0x00000000021E1000-memory.dmp

Download

memory/4860-41-0x0000000002200000-0x0000000002201000-memory.dmp

Download

memory/4860-42-0x0000000002280000-0x0000000002281000-memory.dmp

Download

memory/4860-34-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4952-0-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4952-8-0x00000000021E0000-0x00000000021E1000-memory.dmp

Download

memory/4952-9-0x00000000021F0000-0x00000000021F1000-memory.dmp

Download

memory/4952-3-0x00000000021D0000-0x00000000021D1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads