modiloader | 2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9b

Analysis

max time kernel
119s
max time network
116s
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 02:38

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General

Target

2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
Size

90KB
MD5

5d0bcd6512e791fa341784aa32167060
SHA1

0ccd03af2aabd6306d5d320a0ae22408e66c61f4
SHA256

2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9b
SHA512

cf4cb2b3224510bdc9ef8c609dab40af4f5c057c610ff2933f028fc0d1463b06c9ef442388c86c5694196b34bd54d34a85cf8c1365b683054f6a03881d855525
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDD:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3l

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/2316-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2316-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2316-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2316-62-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe

Executes dropped EXE 3 IoCs

pid	Process
4664	csrsll.exe
3380	csrsll.exe
2316	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 4996 set thread context of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4664 set thread context of 3380	4664	csrsll.exe	92
PID 4664 set thread context of 2316	4664	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4996-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4996-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3648-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3648-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3648-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c86-29.dat	upx
behavioral2/memory/3648-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4664-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4664-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2316-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2316-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2316-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4664-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3648-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3380-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2316-62-0x0000000000400000-0x0000000000414000-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	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	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe
Token: SeDebugPrivilege	3380	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
4664	csrsll.exe
3380	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 4996 wrote to memory of 3648	4996	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	83
PID 3648 wrote to memory of 2924	3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	84
PID 3648 wrote to memory of 2924	3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	84
PID 3648 wrote to memory of 2924	3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	84
PID 2924 wrote to memory of 1812	2924	cmd.exe	88
PID 2924 wrote to memory of 1812	2924	cmd.exe	88
PID 2924 wrote to memory of 1812	2924	cmd.exe	88
PID 3648 wrote to memory of 4664	3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	89
PID 3648 wrote to memory of 4664	3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	89
PID 3648 wrote to memory of 4664	3648	2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe	89
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 3380	4664	csrsll.exe	92
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93
PID 4664 wrote to memory of 2316	4664	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
"C:\Users\Admin\AppData\Local\Temp\2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Users\Admin\AppData\Local\Temp\2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe
  "C:\Users\Admin\AppData\Local\Temp\2b2b2e16f9e37e8f23beb98d2b7423e1060c0be98e21f69757af3a1151446c9bN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3648
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AKXTR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2924
  - - 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:4664
  - - 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:3380
  - - 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:2316

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\AKXTR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
4cf8b53888d52c4f5818da505e05fea2

SHA1
b344722ca385e223624d4f798b1514811a370b40

SHA256
dd648745ea9664181690a44d50c155c6912042cd725813c5bcaa00f77581fa4f

SHA512
d5cf67256f8fe44c9e0b043ebccb6624f8652c7d893617f95d8194d6e1302c24c5c0696ae4eb0ed1bf667c3694ae8f4b090d41e9fa40659422838eb3ddc21ef1

Download Submit
memory/2316-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2316-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2316-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2316-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2316-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2316-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3380-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3648-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3648-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3648-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3648-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3648-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4664-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4664-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4996-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4996-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4996-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4996-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4996-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4996-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads