modiloader | 534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105

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
26-12-2024 11:15

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General

Target

534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe
Size

90KB
MD5

737f485529ed458cd2be8885bb6b6980
SHA1

5d470f2dd98e15d155e7cc7423c01826588f038b
SHA256

534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105
SHA512

e44b1cdf835fb8d089e834a4fc98f1fb9ed3c0913d01c6bff4b28e105809605b204bf4539d39cd9b0887fd5b022c1a2c4b42d23a2c9031b8dfc13a34e2966d3b
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDz:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3F

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/112-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/112-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/112-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/112-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe

Executes dropped EXE 3 IoCs

pid	Process
4044	csrsll.exe
3736	csrsll.exe
112	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-1-5-21-493223053-2004649691-1575712786-1000\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 2844 set thread context of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 4044 set thread context of 3736	4044	csrsll.exe	101
PID 4044 set thread context of 112	4044	csrsll.exe	102

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2844-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2844-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/996-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/996-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2844-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/996-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023c87-29.dat	upx
behavioral2/memory/996-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4044-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4044-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/112-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/112-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/112-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/112-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/996-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/112-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3736-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/112-62-0x0000000000400000-0x0000000000414000-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	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.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	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe
Token: SeDebugPrivilege	3736	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe
996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe
4044	csrsll.exe
3736	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 2844 wrote to memory of 996	2844	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	89
PID 996 wrote to memory of 4020	996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	92
PID 996 wrote to memory of 4020	996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	92
PID 996 wrote to memory of 4020	996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	92
PID 4020 wrote to memory of 384	4020	cmd.exe	96
PID 4020 wrote to memory of 384	4020	cmd.exe	96
PID 4020 wrote to memory of 384	4020	cmd.exe	96
PID 996 wrote to memory of 4044	996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	97
PID 996 wrote to memory of 4044	996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	97
PID 996 wrote to memory of 4044	996	534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe	97
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 3736	4044	csrsll.exe	101
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102
PID 4044 wrote to memory of 112	4044	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe
"C:\Users\Admin\AppData\Local\Temp\534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Users\Admin\AppData\Local\Temp\534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe
  "C:\Users\Admin\AppData\Local\Temp\534cd1e2e400c970aeb7d5fa2e9256afe05b0c45d49e1d9635699f7c70b28105N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XLXJH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4020
  - - 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:384
- - 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:4044
  - - 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:3736
  - - 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:112

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\XLXJH.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
42eb338cc0c6c065e321445ea4829ccb

SHA1
bcc510acee825f48fb8d9415d4a2f37209c23421

SHA256
b63ef9b3a044cc09641f9e4c5e12abc97987835d06f8d493c64e8665c9c692bb

SHA512
5b4e90528b71e0f2d3241bc4d70863258e98b8b7e783a76d9ff733960868e31b012a24042351088e7cf397d817389450a84cea517fe83797a82c7ceef09e1484

Download Submit
memory/112-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/112-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/112-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/112-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/112-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/112-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/996-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/996-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2844-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2844-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/2844-4-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/2844-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2844-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/2844-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3736-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4044-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4044-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4044-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads