modiloader | 79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2024 23:15

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General

Target

79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe
Size

90KB
MD5

ac5f99bbb0e030200655a60b6abcafa9
SHA1

942565504ce11f0f182f3d8e9f79acafa6ddd0fc
SHA256

79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51
SHA512

72538e24b4fb1f542102cb5a7625b891eea917d3e374ffaeb48b90440c263ba2efb864bd49742302976f362a30aa8a49c3a8dfb5ef8c529210261c674dc50b69
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/4068-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4068-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4068-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4068-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe

Executes dropped EXE 3 IoCs

pid	Process
5060	csrsll.exe
2612	csrsll.exe
4068	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1064-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1064-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1232-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1232-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1232-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1064-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x00080000000234cb-29.dat	upx
behavioral2/memory/5060-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1232-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5060-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5060-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4068-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4068-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4068-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4068-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4068-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5060-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1232-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2612-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4068-61-0x0000000000400000-0x0000000000414000-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 1064 set thread context of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 5060 set thread context of 2612	5060	csrsll.exe	95
PID 5060 set thread context of 4068	5060	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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.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	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe
Token: SeDebugPrivilege	2612	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe
1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe
5060	csrsll.exe
2612	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1064 wrote to memory of 1232	1064	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	86
PID 1232 wrote to memory of 4872	1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	88
PID 1232 wrote to memory of 4872	1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	88
PID 1232 wrote to memory of 4872	1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	88
PID 4872 wrote to memory of 4660	4872	cmd.exe	91
PID 4872 wrote to memory of 4660	4872	cmd.exe	91
PID 4872 wrote to memory of 4660	4872	cmd.exe	91
PID 1232 wrote to memory of 5060	1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	92
PID 1232 wrote to memory of 5060	1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	92
PID 1232 wrote to memory of 5060	1232	79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe	92
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 2612	5060	csrsll.exe	95
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96
PID 5060 wrote to memory of 4068	5060	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe
"C:\Users\Admin\AppData\Local\Temp\79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Users\Admin\AppData\Local\Temp\79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe
  "C:\Users\Admin\AppData\Local\Temp\79a36b8eecf5d5e616f8fb9fef0f00936853c56d230ddcfb840f729988b1fb51.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ECGBJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4872
  - - 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:4660
- - 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:5060
  - - 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:2612
  - - 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:4068

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\ECGBJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
29d80917b3861b486c0e126d3356bb44

SHA1
9be8c2464f1267c4b6ad14cc0522c0a285d327e6

SHA256
c48d2e510fe04ce3a8da106c6525922ef20cf1263223a9eba218f5b47123b6d0

SHA512
210634bbafb7dae647d2b2bbb6f3343381b48936dae195c73ad241659c30ec93cc4efb4df6877e9b70b3fdac1850ff5be26cdb26520a0e8b800dae7189beca3d

Download Submit
memory/1064-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1064-3-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/1064-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

Filesize
8KB

Download
memory/1064-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1064-6-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/1064-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1232-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1232-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2612-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4068-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4068-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4068-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4068-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4068-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4068-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5060-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5060-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5060-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads