modiloader | 922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577

Analysis

max time kernel
120s
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
19-12-2024 11:30

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General

Target

922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe
Size

90KB
MD5

29da9e864cb339b90cee5c83cadf4910
SHA1

6f8290a478908ccc4e5fea6f4477f5fedc8fd5d3
SHA256

922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577
SHA512

41e49b6fcb765d072e1ea23a79d38fb9955561d8c36617206a22f2c6db9719e516064ad2c8b63bc0682beb7ab4b7b6839f228bd2dab9fdd2ac8704b95dfc5a21
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/432-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/432-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/432-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/432-63-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe

Executes dropped EXE 3 IoCs

pid	Process
1100	csrsll.exe
3016	csrsll.exe
432	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 5020 set thread context of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 1100 set thread context of 3016	1100	csrsll.exe	102
PID 1100 set thread context of 432	1100	csrsll.exe	103

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5020-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5020-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3632-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3632-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3632-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5020-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0009000000023c20-29.dat	upx
behavioral2/memory/1100-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3632-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1100-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1100-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/432-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/432-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/432-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1100-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/432-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3632-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/432-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3016-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/432-63-0x0000000000400000-0x0000000000414000-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	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe
Token: SeDebugPrivilege	3016	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe
3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe
1100	csrsll.exe
3016	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 5020 wrote to memory of 3632	5020	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	86
PID 3632 wrote to memory of 5072	3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	91
PID 3632 wrote to memory of 5072	3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	91
PID 3632 wrote to memory of 5072	3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	91
PID 5072 wrote to memory of 1484	5072	cmd.exe	95
PID 5072 wrote to memory of 1484	5072	cmd.exe	95
PID 5072 wrote to memory of 1484	5072	cmd.exe	95
PID 3632 wrote to memory of 1100	3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	96
PID 3632 wrote to memory of 1100	3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	96
PID 3632 wrote to memory of 1100	3632	922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe	96
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 3016	1100	csrsll.exe	102
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103
PID 1100 wrote to memory of 432	1100	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe
"C:\Users\Admin\AppData\Local\Temp\922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Users\Admin\AppData\Local\Temp\922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe
  "C:\Users\Admin\AppData\Local\Temp\922f8cbca0ff5cb07a67e11b89c81783667bbe6576fa876e2258d97726ab5577N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3632
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EPUQE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5072
  - - 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:1484
- - 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:1100
  - - 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:3016
  - - 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:432

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\EPUQE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
5bba05ff65e03e865951fc87c3dee3c7

SHA1
114c1440b27063933687a873426de58c602ce7bb

SHA256
9422e07791adf761b35382e624f36f2ed7eca2e89d1add88fb45aa5b59c14737

SHA512
d9b19d523824a07b52ba2e8a7e4a88442d1dc740bb92acb7aa33427fc4051feed9f41b8d51b04966bb00679e36af526056a391c372370f77b806b18eb348eb0f

Download Submit
memory/432-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/432-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/432-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/432-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/432-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/432-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1100-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1100-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1100-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1100-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3016-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3632-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3632-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3632-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3632-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3632-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3632-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/5020-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5020-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5020-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/5020-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5020-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/5020-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads