modiloader | e98e4c88a2f80f6c18652ff9e46f4ddfb4fa7fbe44fba125c0132f8a6853410a

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14-09-2024 21:20

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General

Target

3baa4e41687636b9bdf27f2e3ea02cb0N.exe
Size

90KB
MD5

3baa4e41687636b9bdf27f2e3ea02cb0
SHA1

e665f36bbef6a748e67c088801e5aa74d16469f2
SHA256

e98e4c88a2f80f6c18652ff9e46f4ddfb4fa7fbe44fba125c0132f8a6853410a
SHA512

fec430b1000a4f42e8ce8844e6b272a16d37011c99f0f453732e74b0165d7e943efd53d4163f47fadd2471da9e194f3aafcdc81dbfc916619c26d0306be292e6
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4312-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4312-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4312-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4312-63-0x0000000000400000-0x0000000000414000-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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	3baa4e41687636b9bdf27f2e3ea02cb0N.exe

Executes dropped EXE 3 IoCs

pid	Process
2676	csrsll.exe
3160	csrsll.exe
4312	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4016-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4016-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2128-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2128-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2128-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4016-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023421-29.dat	upx
behavioral2/memory/2676-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2128-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2676-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2676-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4312-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4312-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4312-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2676-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4312-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4312-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2128-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3160-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4312-63-0x0000000000400000-0x0000000000414000-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-1-5-21-945322488-2060912225-3527527000-1000\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 4016 set thread context of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 2676 set thread context of 3160	2676	csrsll.exe	99
PID 2676 set thread context of 4312	2676	csrsll.exe	100

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	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3baa4e41687636b9bdf27f2e3ea02cb0N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe
Token: SeDebugPrivilege	3160	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe
2676	csrsll.exe
3160	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 4016 wrote to memory of 2128	4016	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	91
PID 2128 wrote to memory of 996	2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	94
PID 2128 wrote to memory of 996	2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	94
PID 2128 wrote to memory of 996	2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	94
PID 996 wrote to memory of 884	996	cmd.exe	97
PID 996 wrote to memory of 884	996	cmd.exe	97
PID 996 wrote to memory of 884	996	cmd.exe	97
PID 2128 wrote to memory of 2676	2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	98
PID 2128 wrote to memory of 2676	2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	98
PID 2128 wrote to memory of 2676	2128	3baa4e41687636b9bdf27f2e3ea02cb0N.exe	98
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 3160	2676	csrsll.exe	99
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100
PID 2676 wrote to memory of 4312	2676	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe
"C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe
  "C:\Users\Admin\AppData\Local\Temp\3baa4e41687636b9bdf27f2e3ea02cb0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YLCPL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:996
  - - 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:884
- - 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:2676
  - - 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:3160
  - - 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:4312

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\YLCPL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f76c35436fd792a72284593637695196

SHA1
475a1c20b4fe7bb10da09a3dce2205a0e2356860

SHA256
cff96f513096ef4b1bc913411ffb353b001cd13e869023afca4605841fb5362d

SHA512
4cdb816b7ff9f42ff7c62fa418e52e37ed5a30eb9e373bfb9344b91338245e9f8db1e2c0fe20cd61f4d3bdff3e4f737b40ad9e2cb2834bb8f75cb1f64474758a

Download Submit
memory/2128-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2128-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2128-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2128-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2128-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2676-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2676-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2676-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2676-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3160-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4016-6-0x0000000002BA0000-0x0000000002BA2000-memory.dmp

Filesize
8KB

Download
memory/4016-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4016-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4016-5-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4016-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4016-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4312-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4312-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4312-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4312-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4312-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4312-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads