modiloader | 864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6

Analysis

max time kernel
119s
max time network
119s
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 08:10

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General

Target

864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe
Size

90KB
MD5

a249b5424100b14825c9428908921470
SHA1

193d7cf356045e8cf89dd0d6fe36aadf4bdb0184
SHA256

864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6
SHA512

0aa9be19cca49c0ced44590abf32354d6005cbad7c1a9c32389436e5a911117b6fbf7ee3e4cd8448f9d32c652de85743666c281e36dcca2e88b8c635abaabf0d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDL:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3t

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/2604-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2604-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2604-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2604-63-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe

Executes dropped EXE 3 IoCs

pid	Process
2676	csrsll.exe
3496	csrsll.exe
2604	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4748 set thread context of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 2676 set thread context of 3496	2676	csrsll.exe	97
PID 2676 set thread context of 2604	2676	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4748-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4748-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1968-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1968-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4748-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1968-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b71-29.dat	upx
behavioral2/memory/1968-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2676-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2676-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2604-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2604-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2604-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2604-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2604-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2676-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1968-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3496-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2604-63-0x0000000000400000-0x0000000000414000-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	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe
Token: SeDebugPrivilege	3496	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe
1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe
2676	csrsll.exe
3496	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 4748 wrote to memory of 1968	4748	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	83
PID 1968 wrote to memory of 1640	1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	84
PID 1968 wrote to memory of 1640	1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	84
PID 1968 wrote to memory of 1640	1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	84
PID 1640 wrote to memory of 1656	1640	cmd.exe	88
PID 1640 wrote to memory of 1656	1640	cmd.exe	88
PID 1640 wrote to memory of 1656	1640	cmd.exe	88
PID 1968 wrote to memory of 2676	1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	89
PID 1968 wrote to memory of 2676	1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	89
PID 1968 wrote to memory of 2676	1968	864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe	89
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 3496	2676	csrsll.exe	97
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98
PID 2676 wrote to memory of 2604	2676	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe
"C:\Users\Admin\AppData\Local\Temp\864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Users\Admin\AppData\Local\Temp\864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe
  "C:\Users\Admin\AppData\Local\Temp\864c9b7d4e87951d8955fc33790815f0d3150800eaf4a4b5844f3c706f8fbca6N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MLTKU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - 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:1656
- - 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:2676
  - - 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:3496
  - - 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:2604

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\MLTKU.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
793c4a632978709da56827dc5139c789

SHA1
cc2620daa07edeb8fd07bae9549381eea110e604

SHA256
95da4e52fc065d0165bb242d8f817793b096751b7ea4e834a669c1b10462ba4d

SHA512
08a8aa6c28bc2aa9b6b28b92ec0ada46839f2a2980c380b2bac40f783d1d609b47a671ab130188dc4987511f63cee66ba6b5c8fab4c13488373b870ddefb8c59

Download Submit
memory/1968-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1968-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2604-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2604-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2676-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2676-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2676-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3496-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4748-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4748-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4748-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4748-4-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/4748-3-0x0000000002A00000-0x0000000002A02000-memory.dmp

Filesize
8KB

Download
memory/4748-6-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads