modiloader | 21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/11/2024, 20:45

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General

Target

21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
Size

90KB
MD5

82065998f457ad6ba0213134ec23d9af
SHA1

19273cab6654d9a4e814796cba799cb6b4a4b168
SHA256

21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a
SHA512

637f2235554cc40c3415a427eb48cb328818165918cc8c10cc26158aa7e5bcebba2fe1a6b094a81efca86d562f7ea49ea3d601eee08b09d89736c5bf7df2fb1b
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/4044-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4044-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe

Executes dropped EXE 3 IoCs

pid	Process
3664	csrsll.exe
1992	csrsll.exe
4044	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-1-5-21-493223053-2004649691-1575712786-1000\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 1056 set thread context of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 3664 set thread context of 1992	3664	csrsll.exe	100
PID 3664 set thread context of 4044	3664	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1056-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1056-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1400-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1400-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1056-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1400-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cb0-29.dat	upx
behavioral2/memory/3664-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1400-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3664-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3664-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4044-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4044-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3664-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1400-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1992-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4044-62-0x0000000000400000-0x0000000000414000-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	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.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	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe
Token: SeDebugPrivilege	1992	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
3664	csrsll.exe
1992	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1056 wrote to memory of 1400	1056	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	91
PID 1400 wrote to memory of 4256	1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	92
PID 1400 wrote to memory of 4256	1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	92
PID 1400 wrote to memory of 4256	1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	92
PID 4256 wrote to memory of 4840	4256	cmd.exe	97
PID 4256 wrote to memory of 4840	4256	cmd.exe	97
PID 4256 wrote to memory of 4840	4256	cmd.exe	97
PID 1400 wrote to memory of 3664	1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	99
PID 1400 wrote to memory of 3664	1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	99
PID 1400 wrote to memory of 3664	1400	21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe	99
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 1992	3664	csrsll.exe	100
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101
PID 3664 wrote to memory of 4044	3664	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
"C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe
  "C:\Users\Admin\AppData\Local\Temp\21aa89c70f4e66711addbc7b97f7497a11154a2b9901b6bbef2a6219ce59453a.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\APQNW.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4256
  - - 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:4840
- - 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:3664
  - - 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:1992
  - - 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:4044

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\APQNW.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
093b74f5d5ec6a31f368515a39a8e8b4

SHA1
ff887fce793e89345ec70194da10de9882ac2d64

SHA256
97d841da30ce7ad3862b2c63bbb1f3962b1eb2ac1029e35e7b31eb0f5176fa5a

SHA512
b420512475119ad195a5470354aa869c08bc9dab462bd4fe1134ec2e4676cddb52e6e19ad741956f9c4e4f495931284a7fda45177436ff9135e9aafe79fbee73

Download Submit
memory/1056-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/1056-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/1056-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1056-5-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1056-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1056-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1400-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1400-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1400-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1400-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1400-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1400-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1992-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3664-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3664-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3664-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3664-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4044-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4044-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads