modiloader | 3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 03:46

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General

Target

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
Size

90KB
MD5

358cf2a7c196a240f9e34665d21fee5c
SHA1

7977caccc58f21e804008321ad5d9e4526ff6615
SHA256

3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1
SHA512

558343c68ed2f214b48171b77b97f810b224281dfe78c5900df5f2a31e09892df055063dea33861a5bd94563129f1282af5cff7741b6aec3a160f644069b55bb
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDE:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3G

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/4852-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4852-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4852-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4852-61-0x0000000000400000-0x0000000000414000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe

Executes dropped EXE 3 IoCs

pid	Process
2516	csrsll.exe
4816	csrsll.exe
4852	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-1-5-21-940901362-3608833189-1915618603-1000\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 3388 set thread context of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 2516 set thread context of 4816	2516	csrsll.exe	103
PID 2516 set thread context of 4852	2516	csrsll.exe	104

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3388-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3388-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1516-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1516-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3388-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1516-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000c000000023b63-29.dat	upx
behavioral2/memory/1516-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2516-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2516-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4852-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4852-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2516-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1516-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4816-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4852-61-0x0000000000400000-0x0000000000414000-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	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe
Token: SeDebugPrivilege	4816	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
2516	csrsll.exe
4816	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 3388 wrote to memory of 1516	3388	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	92
PID 1516 wrote to memory of 3736	1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	97
PID 1516 wrote to memory of 3736	1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	97
PID 1516 wrote to memory of 3736	1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	97
PID 3736 wrote to memory of 4684	3736	cmd.exe	101
PID 3736 wrote to memory of 4684	3736	cmd.exe	101
PID 3736 wrote to memory of 4684	3736	cmd.exe	101
PID 1516 wrote to memory of 2516	1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	102
PID 1516 wrote to memory of 2516	1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	102
PID 1516 wrote to memory of 2516	1516	3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe	102
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4816	2516	csrsll.exe	103
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104
PID 2516 wrote to memory of 4852	2516	csrsll.exe	104

C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
"C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe
  "C:\Users\Admin\AppData\Local\Temp\3665ffe7e4db95f1d70d94c3c3b3621b7b643cdd9abc6dc185251fabfc6938d1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BGLYK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3736
  - - 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:4684
- - 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:2516
  - - 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:4816
  - - 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:4852

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\BGLYK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
bb653f5a4712026c67bfcd83f3e5aa26

SHA1
72738787b60d1e13c0aedef82223e6efe026e40a

SHA256
fa4db47b84f819217dcb18b3e2607016ad672e16f33b374a6407f0e3b1d577df

SHA512
7030a118ef0271fdb09c811f16ec55f5227a9e71e2cb2fd98b62daccbe41c937ea86a2d9d82c9af4d4e9bef2124cebffb9dcc4d86ac3d8749be04cc1ae02e1cd

Download Submit
memory/1516-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1516-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1516-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1516-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1516-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1516-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2516-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2516-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2516-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3388-5-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/3388-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/3388-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3388-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3388-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/3388-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4816-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4852-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4852-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads