modiloader | 049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 03:47

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General

Target

049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
Size

90KB
MD5

5d98f6ec9f83a91d962aa757b548aa6f
SHA1

fd805b8de79f54e37ef1ad17e74445d361579dc4
SHA256

049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae
SHA512

3b3f7bff70cf690d694238cc8b73d729839544d9ca7a67cc81525ecd8d3ccb8fe4059b67b4d42c9b597a9f86bfd23b309cdec5abccfd92537cb963538f25e9e2
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDT:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3d

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/1436-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1436-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1436-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1436-61-0x0000000000400000-0x0000000000414000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe

Executes dropped EXE 3 IoCs

pid	Process
1788	csrsll.exe
3232	csrsll.exe
1436	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-1-5-21-940901362-3608833189-1915618603-1000\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 3808 set thread context of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 1788 set thread context of 3232	1788	csrsll.exe	98
PID 1788 set thread context of 1436	1788	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3808-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3808-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/780-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/780-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/780-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3808-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023c4f-29.dat	upx
behavioral2/memory/780-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1788-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1788-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1436-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1436-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1436-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1436-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1436-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1788-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/780-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3232-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1436-61-0x0000000000400000-0x0000000000414000-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

description	ioc	Process
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	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe
Token: SeDebugPrivilege	3232	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
1788	csrsll.exe
3232	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 3808 wrote to memory of 780	3808	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	84
PID 780 wrote to memory of 4112	780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	85
PID 780 wrote to memory of 4112	780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	85
PID 780 wrote to memory of 4112	780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	85
PID 4112 wrote to memory of 4260	4112	cmd.exe	89
PID 4112 wrote to memory of 4260	4112	cmd.exe	89
PID 4112 wrote to memory of 4260	4112	cmd.exe	89
PID 780 wrote to memory of 1788	780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	90
PID 780 wrote to memory of 1788	780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	90
PID 780 wrote to memory of 1788	780	049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe	90
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 3232	1788	csrsll.exe	98
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99
PID 1788 wrote to memory of 1436	1788	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
"C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe
  "C:\Users\Admin\AppData\Local\Temp\049b5eeb78fdf5683039f863f00e170aa2e6beb9c723e76d25fade727e8607ae.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:780
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XNRWD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4112
  - - 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:4260
- - 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:1788
  - - 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:3232
  - - 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:1436

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\XNRWD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
202c43a1125f96f6aea807b0c6c58787

SHA1
a25dec2716dcba67d6f298bf4ac873c44da46293

SHA256
4e8fc01a8453d85d0e4c90378723a480b8164a716ba3b2a0dd99d0c8a2f4f02c

SHA512
0ea7697c0d7152a184c796179330260fdfc0b481f9127fba4c9753aec910b8fa5840140c179bb6cce2af78c33ffae88b8189cc751e1126a79724072cf215f204

Download Submit
memory/780-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/780-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/780-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/780-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/780-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/780-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1436-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1436-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1436-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1436-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1436-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1436-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1788-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1788-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1788-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3232-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3808-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3808-6-0x0000000002450000-0x0000000002452000-memory.dmp

Filesize
8KB

Download
memory/3808-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3808-4-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/3808-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/3808-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads