modiloader | 04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 18:16

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General

Target

04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe
Size

90KB
MD5

2613631294ec57dd7499599d6ad71123
SHA1

71af8d989509315f552a9df345ab3ef6b4d2fbdd
SHA256

04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359
SHA512

e19e8f58d3cc035a325a51de072142c929f9f30b1ad43719de3a00c7af8cc0beb3c29bc430ff0a7c86467c96033cab38336412caf4a2cd5b8c80fcbfb5254b65
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2544-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2544-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2544-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2544-62-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe

Executes dropped EXE 3 IoCs

pid	Process
4776	csrsll.exe
4784	csrsll.exe
2544	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4508-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4508-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3764-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3764-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4508-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3764-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023470-29.dat	upx
behavioral2/memory/4776-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3764-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4776-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4776-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2544-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2544-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2544-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4776-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2544-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2544-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3764-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4784-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2544-62-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-1194130065-3471212556-1656947724-1000\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 4508 set thread context of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4776 set thread context of 4784	4776	csrsll.exe	95
PID 4776 set thread context of 2544	4776	csrsll.exe	96

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	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.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	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe
Token: SeDebugPrivilege	4784	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe
3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe
4776	csrsll.exe
4784	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 4508 wrote to memory of 3764	4508	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	87
PID 3764 wrote to memory of 4984	3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	88
PID 3764 wrote to memory of 4984	3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	88
PID 3764 wrote to memory of 4984	3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	88
PID 4984 wrote to memory of 872	4984	cmd.exe	91
PID 4984 wrote to memory of 872	4984	cmd.exe	91
PID 4984 wrote to memory of 872	4984	cmd.exe	91
PID 3764 wrote to memory of 4776	3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	92
PID 3764 wrote to memory of 4776	3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	92
PID 3764 wrote to memory of 4776	3764	04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe	92
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 4784	4776	csrsll.exe	95
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96
PID 4776 wrote to memory of 2544	4776	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe
"C:\Users\Admin\AppData\Local\Temp\04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Users\Admin\AppData\Local\Temp\04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe
  "C:\Users\Admin\AppData\Local\Temp\04f86889014d775571d3a207ace63a9a2f4917208d1d034503ed941284927359.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3764
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PKJXE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4984
  - - 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:872
- - 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:4776
  - - 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:4784
  - - 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:2544

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\PKJXE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
79319f6865137195f78b8d2e4ed42388

SHA1
a431d5dad84222825080d86826c370f435fde505

SHA256
2e12d183b9e9f9c9c1fad024e53fe24950ae8e372770f0d8ffe2756da3dadcfb

SHA512
60951e246863f8a2bd56e939041881409033f17d700be913d4ba92fcba9f9fedd724151d1e4a049a0ae14e9bbfb2fc9fbccc6c7dc00df92a288b8d9b59022f59

Download Submit
memory/2544-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2544-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2544-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2544-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2544-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2544-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3764-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3764-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4508-6-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/4508-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4508-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4508-4-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/4508-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4508-3-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/4776-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4776-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4776-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4776-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4784-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads