modiloader | 5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 16:51

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General

Target

5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe
Size

90KB
MD5

2872c26c31b9f561dd90432726cf9360
SHA1

8c850d8f38d4abab6f8d8a493f767519d573f53b
SHA256

5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f
SHA512

4dd0618a412ba659d0afc0bd229f4482faf54abb304bd82c11ad4a4ecabbab79e93db941581795ef9f957a5c20c04b67b50b9ffcba375bcbe148df70599688a9
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/916-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/916-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/916-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/916-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe

Executes dropped EXE 3 IoCs

pid	Process
3652	csrsll.exe
4448	csrsll.exe
916	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-1-5-21-3350944739-639801879-157714471-1000\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 4748 set thread context of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 3652 set thread context of 4448	3652	csrsll.exe	102
PID 3652 set thread context of 916	3652	csrsll.exe	103

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4748-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4748-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3948-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3948-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3948-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4748-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0010000000023a70-29.dat	upx
behavioral2/memory/3652-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3948-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3652-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3652-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/916-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/916-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/916-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/916-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/916-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3652-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3948-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4448-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/916-63-0x0000000000400000-0x0000000000414000-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	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe
Token: SeDebugPrivilege	4448	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe
3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe
3652	csrsll.exe
4448	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 4748 wrote to memory of 3948	4748	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	93
PID 3948 wrote to memory of 4892	3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	96
PID 3948 wrote to memory of 4892	3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	96
PID 3948 wrote to memory of 4892	3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	96
PID 4892 wrote to memory of 384	4892	cmd.exe	100
PID 4892 wrote to memory of 384	4892	cmd.exe	100
PID 4892 wrote to memory of 384	4892	cmd.exe	100
PID 3948 wrote to memory of 3652	3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	101
PID 3948 wrote to memory of 3652	3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	101
PID 3948 wrote to memory of 3652	3948	5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe	101
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 4448	3652	csrsll.exe	102
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103
PID 3652 wrote to memory of 916	3652	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe
"C:\Users\Admin\AppData\Local\Temp\5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Users\Admin\AppData\Local\Temp\5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe
  "C:\Users\Admin\AppData\Local\Temp\5d66f55c3f489d86a6b06fd3f3073362b4a2d50a9a65c087b709ec4835fd952f.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3948
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WDEBK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4892
  - - 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:3652
  - - 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:4448
  - - 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:916

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\WDEBK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b4e93ad23fb57aa0481f672bcbec268b

SHA1
cc82c44ebd595b10862081d7656f1d559cd97599

SHA256
0f5c249a3214543f557bc16d861f9ae4523688c2d84757bd5d7e4fbd18002d24

SHA512
f8f3312eeb6e14be243dbedfe7cd0be527dd39f067890d8aa127db5b81650734222a72d800f6191153276aef13a43976bf87312857afce60e6704fe827f819f9

Download Submit
memory/916-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/916-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/916-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/916-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/916-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/916-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3652-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3652-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3652-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3652-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3948-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3948-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3948-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3948-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3948-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3948-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4448-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4748-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4748-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4748-5-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4748-6-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/4748-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4748-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads