modiloader | 1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 05:15

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General

Target

1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe
Size

90KB
MD5

3766503a24e427a8c34cc9e2d6ccb082
SHA1

58611eab743c886121e151a460798fa96a55eb6c
SHA256

1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2
SHA512

ca662caba7931cd2baee605963d115d959f856bcd88abeae80a52d6e253ee3c550635e439c53af70c4629a2d18eb805f3bd8cd2b2979e37d95a522c698edba46
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDu:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE34

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/908-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/908-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/908-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/908-62-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe

Executes dropped EXE 3 IoCs

pid	Process
4404	csrsll.exe
1844	csrsll.exe
908	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-1-5-21-2878641211-696417878-3864914810-1000\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 1384 set thread context of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 4404 set thread context of 1844	4404	csrsll.exe	98
PID 4404 set thread context of 908	4404	csrsll.exe	99

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1384-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1384-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2896-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1384-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2896-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2896-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b40-29.dat	upx
behavioral2/memory/2896-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4404-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4404-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/908-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/908-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/908-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4404-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/908-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/908-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2896-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1844-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/908-62-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.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	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe
Token: SeDebugPrivilege	1844	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe
2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe
4404	csrsll.exe
1844	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 1384 wrote to memory of 2896	1384	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	84
PID 2896 wrote to memory of 1524	2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	85
PID 2896 wrote to memory of 1524	2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	85
PID 2896 wrote to memory of 1524	2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	85
PID 1524 wrote to memory of 3952	1524	cmd.exe	89
PID 1524 wrote to memory of 3952	1524	cmd.exe	89
PID 1524 wrote to memory of 3952	1524	cmd.exe	89
PID 2896 wrote to memory of 4404	2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	90
PID 2896 wrote to memory of 4404	2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	90
PID 2896 wrote to memory of 4404	2896	1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe	90
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 1844	4404	csrsll.exe	98
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99
PID 4404 wrote to memory of 908	4404	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe
"C:\Users\Admin\AppData\Local\Temp\1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Users\Admin\AppData\Local\Temp\1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe
  "C:\Users\Admin\AppData\Local\Temp\1307dc4cf3dd489bdeabb018c2dc8ffd784655e51673afd483d84a420f6484c2.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WUSXK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1524
  - - 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:3952
- - 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:4404
  - - 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:1844
  - - 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:908

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\WUSXK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ba41b90a4f1d24c3198c6890719ada47

SHA1
5dbddc4289d97e627518f61f45c35257dbf804a9

SHA256
a9b554b156c1f1873acac257d83d573154e17adb358ca9005e3d61b1c240f8d0

SHA512
37089b5639f4761ebe198fe24982ff2d3911bbad3de3faf39c918dc192a80bfe213c3735d0080ac94687f2a5a086f09fb94926cd6b719b6b63ec704c8f277ee4

Download Submit
memory/908-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/908-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/908-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/908-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/908-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/908-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1384-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1384-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/1384-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1384-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/1384-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1384-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2896-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2896-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2896-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2896-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2896-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2896-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4404-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4404-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4404-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads