modiloader | aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512

Analysis

max time kernel
120s
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
17-12-2024 22:30

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General

Target

aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe
Size

90KB
MD5

799577c24fc4a895ab8b6bd02259f62c
SHA1

1cb324cfef7b022681fa9a83f637a191286eab60
SHA256

aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512
SHA512

d71ab0947db96e969cfc7c317d87b078713762a9d97383c3ee740781f8947b58d2cfecddfc87a017d77127ec009abe2c8cb612c918b6d7b3a7c45de4134c2a20
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDP:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3h

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/1660-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1660-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1660-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1660-63-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe

Executes dropped EXE 3 IoCs

pid	Process
2156	csrsll.exe
936	csrsll.exe
1660	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3712 set thread context of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 2156 set thread context of 936	2156	csrsll.exe	95
PID 2156 set thread context of 1660	2156	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3712-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3712-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4344-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4344-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3712-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4344-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b92-30.dat	upx
behavioral2/memory/4344-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2156-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2156-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1660-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1660-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1660-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1660-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4344-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2156-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1660-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/936-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1660-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.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

description	pid	Process
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe
Token: SeDebugPrivilege	936	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe
4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe
2156	csrsll.exe
936	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 3712 wrote to memory of 4344	3712	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	84
PID 4344 wrote to memory of 1904	4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	85
PID 4344 wrote to memory of 1904	4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	85
PID 4344 wrote to memory of 1904	4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	85
PID 1904 wrote to memory of 4988	1904	cmd.exe	88
PID 1904 wrote to memory of 4988	1904	cmd.exe	88
PID 1904 wrote to memory of 4988	1904	cmd.exe	88
PID 4344 wrote to memory of 2156	4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	89
PID 4344 wrote to memory of 2156	4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	89
PID 4344 wrote to memory of 2156	4344	aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe	89
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 936	2156	csrsll.exe	95
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96
PID 2156 wrote to memory of 1660	2156	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe
"C:\Users\Admin\AppData\Local\Temp\aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3712
- C:\Users\Admin\AppData\Local\Temp\aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe
  "C:\Users\Admin\AppData\Local\Temp\aebe7c29c37f1dfdc09a86c7ffbfe108301ec63348a436c0a31c5df8474d6512.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4344
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NOLUG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1904
  - - 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:4988
- - 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:2156
  - - 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:936
  - - 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:1660

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\NOLUG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
525c86b2abc9947b9e7d316a60d1d90d

SHA1
e7288dab42d5be5b29b30ec73f4039e0638fc817

SHA256
6963704cb72eafa9cd9c4c6a870e4b93c891f55d7f49c74d92cb49079c70997b

SHA512
935181672d7491e6c20f0d8e0d67f7b15b4e0c454be9c1674b66a94ff0a704e2009df0e2090b0a3dfa30f040b82f86f48d54dd124de994217d1464326cfcba01

Download Submit
memory/936-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1660-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1660-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1660-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1660-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1660-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1660-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2156-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2156-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2156-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3712-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3712-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3712-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3712-7-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3712-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3712-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/3712-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/4344-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4344-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4344-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4344-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4344-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4344-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads