modiloader | 38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 19:27

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General

Target

38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
Size

90KB
MD5

a161535371e3c854f43657e2913c7f70
SHA1

94b7435344947a719279517e7a7e9b8a949d0f2c
SHA256

38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4
SHA512

365532ad102e95f6b25742806580c43716f0e2d4a409551ddd78565238def2d363401f4c5b3fde071bf693da1446c16b084f5f5930373f1c7a63a230066ca9d4
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/4360-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4360-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4360-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4360-63-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe

Executes dropped EXE 3 IoCs

pid	Process
1944	csrsll.exe
3864	csrsll.exe
4360	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2224-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4776-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4776-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4776-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2224-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x00080000000234d5-29.dat	upx
behavioral2/memory/1944-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4776-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1944-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1944-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4360-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4360-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4360-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4360-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4360-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1944-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4776-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3864-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4360-63-0x0000000000400000-0x0000000000414000-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 2224 set thread context of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 1944 set thread context of 3864	1944	csrsll.exe	95
PID 1944 set thread context of 4360	1944	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	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	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe
Token: SeDebugPrivilege	3864	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
1944	csrsll.exe
3864	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 2224 wrote to memory of 4776	2224	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	87
PID 4776 wrote to memory of 3296	4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	88
PID 4776 wrote to memory of 3296	4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	88
PID 4776 wrote to memory of 3296	4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	88
PID 3296 wrote to memory of 224	3296	cmd.exe	91
PID 3296 wrote to memory of 224	3296	cmd.exe	91
PID 3296 wrote to memory of 224	3296	cmd.exe	91
PID 4776 wrote to memory of 1944	4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	92
PID 4776 wrote to memory of 1944	4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	92
PID 4776 wrote to memory of 1944	4776	38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe	92
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 3864	1944	csrsll.exe	95
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96
PID 1944 wrote to memory of 4360	1944	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
"C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe
  "C:\Users\Admin\AppData\Local\Temp\38f22aed3ac5ffff3042d5672f1a19b199b025e8e262d7a26281f2e9cfe7a0c4N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4776
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QUPXL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3296
  - - 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:224
- - 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:1944
  - - 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:3864
  - - 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:4360

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\QUPXL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
26fe15ea1f27b50f3b7705a5ca99e3ca

SHA1
cd34c2d48e2d3d6d23748bf978d8676acf69c58d

SHA256
d489fa70d8bab0bf093200d60e66d23ab594059cfa2f2a4d96bc8775192c9d00

SHA512
5f57baf0749278c27558f346edc99a6161d939a57c7ae80961da4f0000494d6dd565912a7693e31fe50fae479dcd36abfbd1c509a6f9753094ee4c3fb8379370

Download Submit
memory/1944-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1944-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1944-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1944-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/2224-4-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/2224-3-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3864-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4360-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4360-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4360-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4360-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4360-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4360-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4776-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4776-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4776-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4776-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4776-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4776-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads