modiloader | 0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 19:09

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General

Target

0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe
Size

90KB
MD5

cb1dc98e397e66890aba1fd4f3b6a1b4
SHA1

fc7273707cbb7f1c13d179dd122482dafbcbd780
SHA256

0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b
SHA512

ce915974a300ad58e9abb0800ec9178bc35203c102eae939efd85861785315f0ff5ca54601790af329b83b0f6012bbd41b92167c6e9061def1486d947e178885
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDV:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3L

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 4 IoCs

resource	yara_rule
behavioral2/memory/5096-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5096-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5096-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5096-62-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe

Executes dropped EXE 3 IoCs

pid	Process
4144	csrsll.exe
1956	csrsll.exe
5096	csrsll.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-1-5-21-4050598569-1597076380-177084960-1000\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 4532 set thread context of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4144 set thread context of 1956	4144	csrsll.exe	95
PID 4144 set thread context of 5096	4144	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4532-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1092-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1092-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1092-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4532-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4532-16-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb2-30.dat	upx
behavioral2/memory/1092-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4144-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4144-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5096-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5096-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5096-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5096-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1092-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5096-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4144-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1956-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5096-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe
Token: SeDebugPrivilege	1956	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe
1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe
4144	csrsll.exe
1956	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 4532 wrote to memory of 1092	4532	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	85
PID 1092 wrote to memory of 1976	1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	87
PID 1092 wrote to memory of 1976	1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	87
PID 1092 wrote to memory of 1976	1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	87
PID 1976 wrote to memory of 1588	1976	cmd.exe	90
PID 1976 wrote to memory of 1588	1976	cmd.exe	90
PID 1976 wrote to memory of 1588	1976	cmd.exe	90
PID 1092 wrote to memory of 4144	1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	91
PID 1092 wrote to memory of 4144	1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	91
PID 1092 wrote to memory of 4144	1092	0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe	91
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 1956	4144	csrsll.exe	95
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96
PID 4144 wrote to memory of 5096	4144	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe
"C:\Users\Admin\AppData\Local\Temp\0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Users\Admin\AppData\Local\Temp\0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe
  "C:\Users\Admin\AppData\Local\Temp\0319bda920812b86d06d629a350aa9af408169f07d69565e70f13c6b517bd57b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1092
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LYFPY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1976
  - - 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:1588
- - 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:4144
  - - 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:1956
  - - 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:5096

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

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\LYFPY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5b97d1bf48f27a695cbff9cd9e133fcb

SHA1
0b027f2dbb8834fd3b15a47075ef2688d6563e4c

SHA256
ff4646dd69c482093261a85466be9148f2bcfe456aaedf9be0dd432e926cad18

SHA512
14131f4a027609810b6479f9166cc739b42544536d42f1bc1f2183703748031a498ba38ba2d502f481405320f918900ffc2310a11469a689ea75512960ea3506

Download Submit
memory/1092-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1092-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1092-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1092-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1092-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1956-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4144-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4144-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4144-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4532-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/4532-3-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/4532-5-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/4532-6-0x0000000002200000-0x0000000002202000-memory.dmp

Filesize
8KB

Download
memory/4532-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4532-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4532-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5096-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5096-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5096-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5096-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5096-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5096-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads