modiloader | b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82

Analysis

max time kernel
120s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2024, 23:14

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General

Target

b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe
Size

90KB
MD5

fa234dda06d320e6dde9f57ecf0b6d80
SHA1

075a677885d7a68038aadcd033d55548290d7a1b
SHA256

b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82
SHA512

1fb0ef70984478261b45c8924f267b2648de7e6aa2ed00725e6de367f02b5591d65ee73ea3ed493552bc7e1066e929d92c7a41d71f8c7978086c03d3e53f90e1
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 family
modiloader

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/1248-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1248-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1248-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1248-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe

Executes dropped EXE 3 IoCs

pid	Process
2688	csrsll.exe
744	csrsll.exe
1248	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-1-5-21-493223053-2004649691-1575712786-1000\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 4572 set thread context of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 2688 set thread context of 744	2688	csrsll.exe	105
PID 2688 set thread context of 1248	2688	csrsll.exe	106

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4572-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4572-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2440-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2440-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4572-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2440-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b95-29.dat	upx
behavioral2/memory/2440-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2688-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2688-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1248-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1248-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2688-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1248-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1248-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1248-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/744-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1248-62-0x0000000000400000-0x0000000000414000-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	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	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe
Token: SeDebugPrivilege	744	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe
2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe
2688	csrsll.exe
744	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 4572 wrote to memory of 2440	4572	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	94
PID 2440 wrote to memory of 776	2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	95
PID 2440 wrote to memory of 776	2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	95
PID 2440 wrote to memory of 776	2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	95
PID 776 wrote to memory of 1812	776	cmd.exe	99
PID 776 wrote to memory of 1812	776	cmd.exe	99
PID 776 wrote to memory of 1812	776	cmd.exe	99
PID 2440 wrote to memory of 2688	2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	100
PID 2440 wrote to memory of 2688	2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	100
PID 2440 wrote to memory of 2688	2440	b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe	100
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 744	2688	csrsll.exe	105
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106
PID 2688 wrote to memory of 1248	2688	csrsll.exe	106

C:\Users\Admin\AppData\Local\Temp\b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe
"C:\Users\Admin\AppData\Local\Temp\b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\AppData\Local\Temp\b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe
  "C:\Users\Admin\AppData\Local\Temp\b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2440
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VMKOJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:776
  - - 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:1812
- - 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:2688
  - - 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:744
  - - 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:1248

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\VMKOJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
fa234dda06d320e6dde9f57ecf0b6d80

SHA1
075a677885d7a68038aadcd033d55548290d7a1b

SHA256
b219ac9b8b6a4078372e69948caaf9e060fdbff13daeea3573df3e5be4d1ae82

SHA512
1fb0ef70984478261b45c8924f267b2648de7e6aa2ed00725e6de367f02b5591d65ee73ea3ed493552bc7e1066e929d92c7a41d71f8c7978086c03d3e53f90e1

Download Submit
memory/744-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1248-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1248-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1248-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1248-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1248-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1248-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2440-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2440-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2440-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2440-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2688-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2688-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2688-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4572-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4572-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4572-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4572-5-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4572-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4572-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads