modiloader | 23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1

Analysis

max time kernel
150s
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
19-12-2024 21:27

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General

Target

23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
Size

90KB
MD5

1a5bcaac1e20845893dc8e46cec0d157
SHA1

dd539f6f769898b072d3bf3f63b144e26f582a5a
SHA256

23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1
SHA512

15bbc1b37342f704bc2476444cdaa7662dd9fa6b69289d95433709308a4fbda4c5792744ab555b70cf9f6b7ae46ce7b54f72705f251234c70dd853eeddc974b1
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD5:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3b

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/3464-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3464-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3464-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3464-62-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe

Executes dropped EXE 3 IoCs

pid	Process
3372	csrsll.exe
2456	csrsll.exe
3464	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-1-5-21-1045960512-3948844814-3059691613-1000\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 4860 set thread context of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 3372 set thread context of 2456	3372	csrsll.exe	97
PID 3372 set thread context of 3464	3372	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4860-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4860-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3104-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3104-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4860-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3104-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b64-29.dat	upx
behavioral2/memory/3104-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3372-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3372-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3464-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3464-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3464-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3464-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3464-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3372-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3104-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2456-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3464-62-0x0000000000400000-0x0000000000414000-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	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	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.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	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
3372	csrsll.exe
2456	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 4860 wrote to memory of 3104	4860	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	83
PID 3104 wrote to memory of 532	3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	84
PID 3104 wrote to memory of 532	3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	84
PID 3104 wrote to memory of 532	3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	84
PID 532 wrote to memory of 1312	532	cmd.exe	88
PID 532 wrote to memory of 1312	532	cmd.exe	88
PID 532 wrote to memory of 1312	532	cmd.exe	88
PID 3104 wrote to memory of 3372	3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	89
PID 3104 wrote to memory of 3372	3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	89
PID 3104 wrote to memory of 3372	3104	23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe	89
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 2456	3372	csrsll.exe	97
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98
PID 3372 wrote to memory of 3464	3372	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
"C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe
  "C:\Users\Admin\AppData\Local\Temp\23a68286ae95019a9523cbeebdce45cbd9a3727c06edda8666d07e9f357a0ba1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3104
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UASWR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:532
  - - 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:1312
- - 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:3372
  - - 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:2456
  - - 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:3464

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\UASWR.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
9632604b983a31884544fd8bdd66eb76

SHA1
ef35414361cc9c87ebff79a223db26e98e9a6ac7

SHA256
4f8bd4557ea0c359e003091a4b5d7f32723a398d7b13f4a37d97a56f26efe426

SHA512
4618f9e49b33cd14d035d7dd2c844f3bd86540986221a0dce42641120aa9b7ef8fac88e9aaa7d3748a49f1d6140f3f83f0481d116e76c8c771b48c6b8110fca9

Download Submit
memory/2456-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3104-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3104-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3104-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3104-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3104-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3372-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3372-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3372-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3464-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3464-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3464-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3464-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3464-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3464-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4860-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/4860-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4860-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4860-5-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4860-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4860-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads