modiloader | 7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2024 00:11

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General

Target

7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe
Size

90KB
MD5

d651943871c2ec32da9b09b4c0155b01
SHA1

2538da09e23f69b5a25660c12a5c4230c82b4b86
SHA256

7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e
SHA512

c8c6e86f6cae26deac03296eca17af85e439478f3addae44c56a23c831e1a56c587ab36ae01e80a9735e128abadb089ba2bed7c62396aca2791d270feee81bf9
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/4204-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4204-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4204-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4204-64-0x0000000000400000-0x0000000000414000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe

Executes dropped EXE 3 IoCs

pid	Process
2688	csrsll.exe
2972	csrsll.exe
4204	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-1-5-21-3442511616-637977696-3186306149-1000\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 4788 set thread context of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 2688 set thread context of 2972	2688	csrsll.exe	100
PID 2688 set thread context of 4204	2688	csrsll.exe	101

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4788-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4788-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3028-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3028-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3028-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4788-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cce-29.dat	upx
behavioral2/memory/2688-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3028-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2688-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2688-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4204-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4204-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2688-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4204-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3028-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2972-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4204-64-0x0000000000400000-0x0000000000414000-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	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	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.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	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe
Token: SeDebugPrivilege	2972	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe
3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe
2688	csrsll.exe
2972	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 4788 wrote to memory of 3028	4788	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	92
PID 3028 wrote to memory of 4440	3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	95
PID 3028 wrote to memory of 4440	3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	95
PID 3028 wrote to memory of 4440	3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	95
PID 4440 wrote to memory of 432	4440	cmd.exe	98
PID 4440 wrote to memory of 432	4440	cmd.exe	98
PID 4440 wrote to memory of 432	4440	cmd.exe	98
PID 3028 wrote to memory of 2688	3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	99
PID 3028 wrote to memory of 2688	3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	99
PID 3028 wrote to memory of 2688	3028	7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe	99
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 2972	2688	csrsll.exe	100
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101
PID 2688 wrote to memory of 4204	2688	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe
"C:\Users\Admin\AppData\Local\Temp\7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Users\Admin\AppData\Local\Temp\7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe
  "C:\Users\Admin\AppData\Local\Temp\7b8dd9779857dc1f8ef6313680bb83d617ae408d35e10738b1f657d8ac23179e.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JXWIR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4440
  - - 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:432
- - 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:2688
  - - 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:2972
  - - 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:4204

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\JXWIR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
0b26febb993c449549090fe461f6b9ca

SHA1
869c77f13c69bb005e38199990b488c9a475b31e

SHA256
d38291b502c7363c8aefc639dcfd4badce0a05710c4d68e332683a21e8c40d0a

SHA512
a0c34b8b45854293458b6ce641704f66f1b696c31b7b868fcebcfba642b9deb96535c8de7165f543bb21269412de891917389cab3fd25f295c1c508ea73f938c

Download Submit
memory/2688-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2688-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2688-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2688-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2972-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3028-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3028-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3028-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3028-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3028-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4204-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4204-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4788-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4788-6-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/4788-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4788-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4788-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4788-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads