modiloader | 50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22/11/2024, 22:25

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General

Target

50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
Size

90KB
MD5

6104adac9d4ead244d87d7898a5dc440
SHA1

48928e475c6033b5d8b0015ba1de8458ab721be6
SHA256

50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5
SHA512

51bc9f77fc8bcc7b162bc2744ae654d0793f2a8446e8c3b2dc8f53aff52feeb12a4391b7a2931ce08c0112d1ce9ab033ff409fe4134c5405fd9f1f13b80301f5
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/3020-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3020-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3020-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3020-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe

Executes dropped EXE 3 IoCs

pid	Process
2316	csrsll.exe
700	csrsll.exe
3020	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4464 set thread context of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 2316 set thread context of 700	2316	csrsll.exe	102
PID 2316 set thread context of 3020	2316	csrsll.exe	103

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4464-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4464-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3512-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3512-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3512-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4464-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b81-28.dat	upx
behavioral2/memory/2316-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3512-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2316-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3020-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3020-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3020-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3020-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3512-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3020-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2316-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/700-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3020-61-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe
Token: SeDebugPrivilege	700	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
2316	csrsll.exe
700	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 4464 wrote to memory of 3512	4464	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	89
PID 3512 wrote to memory of 1028	3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	92
PID 3512 wrote to memory of 1028	3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	92
PID 3512 wrote to memory of 1028	3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	92
PID 1028 wrote to memory of 3628	1028	cmd.exe	96
PID 1028 wrote to memory of 3628	1028	cmd.exe	96
PID 1028 wrote to memory of 3628	1028	cmd.exe	96
PID 3512 wrote to memory of 2316	3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	97
PID 3512 wrote to memory of 2316	3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	97
PID 3512 wrote to memory of 2316	3512	50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe	97
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 700	2316	csrsll.exe	102
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103
PID 2316 wrote to memory of 3020	2316	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
"C:\Users\Admin\AppData\Local\Temp\50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Users\Admin\AppData\Local\Temp\50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe
  "C:\Users\Admin\AppData\Local\Temp\50a0bdbe5be99c4f4539384de870bbe4ddca93780643d79b230f25b9380ea4c5.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3512
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PDHCA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1028
  - - 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:3628
- - 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:2316
  - - 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:700
  - - 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:3020

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\PDHCA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
8e0137100ac765a2d42b0f73a3995e11

SHA1
d2207deb411294c4b6162e4b2f61fe8a8be8cbcd

SHA256
b4b0671cdbe497332ce426ae448cda4bf7bd9e0c6876a5b50d634d585b20aee3

SHA512
cf55e95294b1e1f268bd1aab99fdcf4d9b9e421288468f0616cad16239ae6db11420c3f1ead9f48936decc4a5232fcda4b997d5699630c7c124898a01e85e858

Download Submit
memory/700-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3020-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3020-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3020-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3020-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3020-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3020-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3512-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3512-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3512-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4464-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4464-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4464-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4464-5-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4464-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/4464-3-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads