modiloader | 16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
27/07/2024, 19:19

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General

Target

16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe
Size

90KB
MD5

6656125851210ea4afd98eb781b2512f
SHA1

ce76b439d03dd817ecfe9d46cd9dd3e51efaed12
SHA256

16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e
SHA512

fe7b2e7051dd255882c753edcc140ff29878cf96d4ab67f64ead0cb70d093edff393ac8da5f094209cfda286a28988a3a69b3e0d7f939bf8a1421db9ed5b6f51
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 3 IoCs

resource	yara_rule
behavioral2/memory/4128-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4128-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4128-57-0x0000000000400000-0x0000000000414000-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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe

Executes dropped EXE 3 IoCs

pid	Process
2528	csrsll.exe
2160	csrsll.exe
4128	csrsll.exe

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5076-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1344-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1344-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1344-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5076-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000a0000000233d2-28.dat	upx
behavioral2/memory/2528-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1344-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2528-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2528-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4128-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2528-50-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4128-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4128-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4128-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4128-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1344-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2160-60-0x0000000000400000-0x000000000040B000-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-1-5-21-464762018-485119342-1613148473-1000\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 5076 set thread context of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 2528 set thread context of 2160	2528	csrsll.exe	100
PID 2528 set thread context of 4128	2528	csrsll.exe	101

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	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.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	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe
Token: SeDebugPrivilege	2160	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe
1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe
2528	csrsll.exe
2160	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 5076 wrote to memory of 1344	5076	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	92
PID 1344 wrote to memory of 2988	1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	95
PID 1344 wrote to memory of 2988	1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	95
PID 1344 wrote to memory of 2988	1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	95
PID 2988 wrote to memory of 2732	2988	cmd.exe	98
PID 2988 wrote to memory of 2732	2988	cmd.exe	98
PID 2988 wrote to memory of 2732	2988	cmd.exe	98
PID 1344 wrote to memory of 2528	1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	99
PID 1344 wrote to memory of 2528	1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	99
PID 1344 wrote to memory of 2528	1344	16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe	99
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 2160	2528	csrsll.exe	100
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101
PID 2528 wrote to memory of 4128	2528	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe
"C:\Users\Admin\AppData\Local\Temp\16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Users\Admin\AppData\Local\Temp\16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe
  "C:\Users\Admin\AppData\Local\Temp\16d388658e014ad0bdc6a02d49b77ab9b221db0838d88d79f17efd0dce8a792e.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BQROX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2988
  - - 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:2732
- - 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:2528
  - - 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:2160
  - - 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:4128

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\BQROX.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
31e693988ad37373bd30cd44d55ee810

SHA1
5571d14fb36f5d75a2efabd6df0ad8d24d4e80d0

SHA256
6a523b5d1ef800ef230bb68cd4332b1289b16b211508cea218b91d8c80c83b32

SHA512
e99cdede40c1568d6c1cc1c29016916b7ce6a34c3d738d17b577ee9303895b4d755ef626c90b806b1f03c63ef24b4349ec154cf758155383176c08f8f46d08ed

Download Submit
memory/1344-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1344-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1344-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1344-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1344-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2160-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2528-50-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2528-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4128-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4128-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-5-0x0000000002440000-0x0000000002442000-memory.dmp

Filesize
8KB

Download
memory/5076-6-0x0000000002450000-0x0000000002452000-memory.dmp

Filesize
8KB

Download
memory/5076-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-4-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/5076-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5076-3-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads