modiloader | 0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91e

Analysis

max time kernel
119s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 11:48

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General

Target

0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe
Size

90KB
MD5

421affee566f78f65e0d565c279905f0
SHA1

36887418a96a495479e51c8186d98b9e5f233316
SHA256

0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91e
SHA512

a826ae1621e9ac4cd117b0063f0bce5060a4f323e39f7463e64ce38602a211c7ab35d4e5921793c17ff150d99c699ab54000a8c58829efb7c84b59f3a24cf7cb
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

Processes:

resource	yara_rule
behavioral2/memory/1176-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1176-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1176-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1176-61-0x0000000000400000-0x0000000000414000-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

Processes:

0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
2944	csrsll.exe
3480	csrsll.exe
1176	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.execsrsll.exe

description	pid	Process	procid_target
PID 4592 set thread context of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 2944 set thread context of 3480	2944	csrsll.exe	100
PID 2944 set thread context of 1176	2944	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4592-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4592-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3588-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3588-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4592-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3588-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c71-28.dat	upx
behavioral2/memory/2944-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3588-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2944-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2944-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1176-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1176-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1176-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1176-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1176-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2944-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3588-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3480-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1176-61-0x0000000000400000-0x0000000000414000-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

Processes:

csrsll.execsrsll.exe0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.execmd.exereg.execsrsll.exe

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	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.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

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe
Token: SeDebugPrivilege	3480	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.execsrsll.execsrsll.exe

pid	Process
4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe
3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe
2944	csrsll.exe
3480	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 4592 wrote to memory of 3588	4592	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	92
PID 3588 wrote to memory of 1140	3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	93
PID 3588 wrote to memory of 1140	3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	93
PID 3588 wrote to memory of 1140	3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	93
PID 1140 wrote to memory of 772	1140	cmd.exe	96
PID 1140 wrote to memory of 772	1140	cmd.exe	96
PID 1140 wrote to memory of 772	1140	cmd.exe	96
PID 3588 wrote to memory of 2944	3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	97
PID 3588 wrote to memory of 2944	3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	97
PID 3588 wrote to memory of 2944	3588	0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe	97
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 3480	2944	csrsll.exe	100
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101
PID 2944 wrote to memory of 1176	2944	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe
"C:\Users\Admin\AppData\Local\Temp\0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe
  "C:\Users\Admin\AppData\Local\Temp\0bb430934da7ec872ee9c77e9be769cb322d4f44e36b989e126128096640b91eN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3588
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CKBWA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1140
  - - 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:772
- - 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:2944
  - - 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:3480
  - - 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:1176

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\CKBWA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b7ca98f133bb7f2283d9969333155681

SHA1
4c6d505a55642e046422ae6b3f76950c2d0710d3

SHA256
8d758ea5e9fb16eb3e31badba9b574baf90977ef1e4e81eb642113a3862e5821

SHA512
ecf839a53d578f33ec0031cbf45a108f3b46654fdbd221e110d0690748d76a4ef5d2a416a0f7c224c47849825c5ffdee28b651ade500cef680162fa9485d7092

Download Submit
memory/1176-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1176-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1176-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1176-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1176-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1176-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2944-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2944-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3480-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3588-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3588-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3588-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3588-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3588-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4592-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4592-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4592-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download