modiloader | aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 01:17

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General

Target

aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe
Size

90KB
MD5

bbe21bb6865d1121216b54da4ab730a8
SHA1

0168797721c34fed3e8d5cda7b36016b9f61d36f
SHA256

aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc
SHA512

3c6050f83b9cf7559bc724e7dd90e4e400990a4c82b29a52984d3ea36bac10322ba75b1760d855f4718c1680a9018833daecea29b138c3d3526e7239989ab7f1
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD8:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE36

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/1304-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1304-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1304-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1304-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe

Executes dropped EXE 3 IoCs

pid	Process
1844	csrsll.exe
3416	csrsll.exe
1304	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-1-5-21-4050598569-1597076380-177084960-1000\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 2872 set thread context of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 1844 set thread context of 3416	1844	csrsll.exe	95
PID 1844 set thread context of 1304	1844	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2872-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2872-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2556-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2556-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2872-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b82-29.dat	upx
behavioral2/memory/2556-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1844-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1844-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1304-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1304-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1304-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1304-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2556-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1844-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1304-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3416-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1304-62-0x0000000000400000-0x0000000000414000-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	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.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	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe
Token: SeDebugPrivilege	3416	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe
2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe
1844	csrsll.exe
3416	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2872 wrote to memory of 2556	2872	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	86
PID 2556 wrote to memory of 2364	2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	88
PID 2556 wrote to memory of 2364	2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	88
PID 2556 wrote to memory of 2364	2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	88
PID 2364 wrote to memory of 4744	2364	cmd.exe	91
PID 2364 wrote to memory of 4744	2364	cmd.exe	91
PID 2364 wrote to memory of 4744	2364	cmd.exe	91
PID 2556 wrote to memory of 1844	2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	92
PID 2556 wrote to memory of 1844	2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	92
PID 2556 wrote to memory of 1844	2556	aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe	92
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 3416	1844	csrsll.exe	95
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96
PID 1844 wrote to memory of 1304	1844	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe
"C:\Users\Admin\AppData\Local\Temp\aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe
  "C:\Users\Admin\AppData\Local\Temp\aadf1b8becca4e108e38d528310170abf516beffda48ac00e7618fb1188ac8dc.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2556
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ONREI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2364
  - - 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:4744
- - 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:1844
  - - 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:3416
  - - 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:1304

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ONREI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
ba5c61558ab9101254bc4797e1302351

SHA1
d379a24881c31141a0948dcf8ce246676355d5e5

SHA256
c002ce9f3916c2d378913325c9eb48f65565442044ce75e5b64dc8139ea41730

SHA512
0e1814d3dc2ad4da7fdaabee7c598405a7a868633af8f5e5f69143ba4d403204dc1850a806af8bda82a2ce46e2a792e8c70620081b149be9397090d7297f04f7

Download Submit
memory/1304-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1304-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1844-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1844-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2556-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2556-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2872-3-0x0000000002420000-0x0000000002422000-memory.dmp

Filesize
8KB

Download
memory/2872-4-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/2872-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2872-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2872-6-0x0000000002450000-0x0000000002452000-memory.dmp

Filesize
8KB

Download
memory/2872-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3416-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads