modiloader | b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55d

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
04-01-2025 15:25

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General

Target

b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe
Size

90KB
MD5

334376edc8aed15b6cfdc159c0bc2d30
SHA1

028c52ab3c8ff37b39e442b7b83b8450c41c0e66
SHA256

b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55d
SHA512

42b7e28b11e4f2866fa455319aaabd148e0efcb6c4b0821423c6b0ab0a8922444cb29591870bebc1da4e92670456b0b2ea9459924fddc6d706fb57b613752f9b
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/2692-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2692-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2692-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2692-63-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe

Executes dropped EXE 3 IoCs

pid	Process
804	csrsll.exe
2288	csrsll.exe
2692	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 368 set thread context of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 804 set thread context of 2288	804	csrsll.exe	98
PID 804 set thread context of 2692	804	csrsll.exe	99

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/368-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/368-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3888-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3888-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3888-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/368-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb1-29.dat	upx
behavioral2/memory/804-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3888-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/804-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/804-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2692-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2692-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2692-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2692-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/804-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2692-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3888-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2288-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2692-63-0x0000000000400000-0x0000000000414000-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	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe
Token: SeDebugPrivilege	2288	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe
3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe
804	csrsll.exe
2288	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 368 wrote to memory of 3888	368	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	83
PID 3888 wrote to memory of 4712	3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	84
PID 3888 wrote to memory of 4712	3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	84
PID 3888 wrote to memory of 4712	3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	84
PID 4712 wrote to memory of 4140	4712	cmd.exe	88
PID 4712 wrote to memory of 4140	4712	cmd.exe	88
PID 4712 wrote to memory of 4140	4712	cmd.exe	88
PID 3888 wrote to memory of 804	3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	89
PID 3888 wrote to memory of 804	3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	89
PID 3888 wrote to memory of 804	3888	b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe	89
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2288	804	csrsll.exe	98
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99
PID 804 wrote to memory of 2692	804	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe
"C:\Users\Admin\AppData\Local\Temp\b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:368
- C:\Users\Admin\AppData\Local\Temp\b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe
  "C:\Users\Admin\AppData\Local\Temp\b224dbf5bbf6ebde7f7c43b0ffde8cfa12f2ea0a3b84cb31991c352fe93ca55dN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3888
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WMNKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4712
  - - 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:4140
- - 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:804
  - - 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:2288
  - - 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:2692

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\WMNKT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
06e95b9aa3c7514346ef575758646e8c

SHA1
63bb592830f933c623525348b690995fcb7518ac

SHA256
141f17bc736f0585f228808f5aa8a9df5c351eedff1a4e89e83fc66002a55a50

SHA512
2e3427970c2d375d373e60b1397ddaf46859984bc543220ec59d654b23f16261ed2f8d5c34617b7e7f6633f237fa16372d45c20415c5a356d58ad2abd0deb2cc

Download Submit
memory/368-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/368-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/368-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/368-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/368-4-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/368-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/804-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/804-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/804-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/804-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2288-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2692-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2692-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3888-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3888-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3888-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3888-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3888-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3888-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads