modiloader | e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5fae

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
03-12-2024 10:41

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General

Target

e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
Size

90KB
MD5

5d636f0a6aa4f50bbfa53c057d5aa870
SHA1

42607c2cec311b99da56d77433ac0b9fd3a93326
SHA256

e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5fae
SHA512

59efc83801bf28d35891f96758bbf5745f439d956157a5b7cc025a21699fb2c30a67f9e993eda23112b5fc1f2545d4f032f3e8d338cbf48730cd46baaf8ff3b6
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDU:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3a

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 5 IoCs

resource	yara_rule
behavioral2/memory/1408-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1408-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1408-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1408-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1408-64-0x0000000000400000-0x0000000000414000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe

Executes dropped EXE 3 IoCs

pid	Process
1180	csrsll.exe
1416	csrsll.exe
1408	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-1-5-21-2437139445-1151884604-3026847218-1000\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 1544 set thread context of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1180 set thread context of 1416	1180	csrsll.exe	99
PID 1180 set thread context of 1408	1180	csrsll.exe	100

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1544-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1544-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3000-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3000-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1544-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3000-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b89-30.dat	upx
behavioral2/memory/3000-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1180-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1180-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1408-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1408-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1408-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1408-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1408-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1408-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1180-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3000-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1416-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1408-64-0x0000000000400000-0x0000000000414000-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	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.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	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe
Token: SeDebugPrivilege	1416	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
1180	csrsll.exe
1416	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 1544 wrote to memory of 3000	1544	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	83
PID 3000 wrote to memory of 3144	3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	88
PID 3000 wrote to memory of 3144	3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	88
PID 3000 wrote to memory of 3144	3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	88
PID 3144 wrote to memory of 4712	3144	cmd.exe	92
PID 3144 wrote to memory of 4712	3144	cmd.exe	92
PID 3144 wrote to memory of 4712	3144	cmd.exe	92
PID 3000 wrote to memory of 1180	3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	93
PID 3000 wrote to memory of 1180	3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	93
PID 3000 wrote to memory of 1180	3000	e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe	93
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1416	1180	csrsll.exe	99
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100
PID 1180 wrote to memory of 1408	1180	csrsll.exe	100

C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
"C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe
  "C:\Users\Admin\AppData\Local\Temp\e0538eb0d992e6a66cfe8d38d6e57b5c92bc301d0ad6a2c43c8839d4be4e5faeN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ULAVR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3144
  - - 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:4712
- - 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:1180
  - - 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:1416
  - - 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:1408

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\ULAVR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
56c7f0e0d90c23784dc22fab14072e1c

SHA1
28cc88d01e183ba8c37d83875c9597fc100cb57e

SHA256
dc3c7c67742bd6e4c9609ada7d7fa11297c28efd7a8647f5a19242fb3737bc0c

SHA512
b51628cd9c1f2b24cbe58a6351f19390792a54d324f9d9f622ea879b79eac4f6212ba6e92196966f841fca229fa6fb0bf62b571befc17454366e51008d442825

Download Submit
memory/1180-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1180-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1180-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1408-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1408-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1408-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1408-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1408-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1408-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1408-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1416-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1544-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/1544-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/1544-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1544-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1544-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1544-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3000-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3000-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3000-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3000-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3000-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads