modiloader | 44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30

Analysis

max time kernel
149s
max time network
149s
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 21:49

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General

Target

44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
Size

90KB
MD5

cbf1d5adebcdcc4b7c95c9b85865480d
SHA1

e3b7dba81913a34fe6f87bd142b0ceaed95a577d
SHA256

44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30
SHA512

b65b88457f03f031f175b14d066604f8dc430f0bf1607b69255cc510a956b2eebb1070d04cd9794f615fc1c9622fdb9b3e96fa4c2355a8eac0a0e1c313d24ea9
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDY:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3e

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/1636-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1636-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1636-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1636-64-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe

Executes dropped EXE 3 IoCs

pid	Process
4952	csrsll.exe
4408	csrsll.exe
1636	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 3488 set thread context of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 4952 set thread context of 4408	4952	csrsll.exe	95
PID 4952 set thread context of 1636	4952	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3488-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2184-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3488-10-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2184-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2184-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3488-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023ca3-31.dat	upx
behavioral2/memory/2184-41-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4952-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4952-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1636-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1636-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1636-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4952-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1636-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2184-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1636-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4408-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1636-64-0x0000000000400000-0x0000000000414000-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	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	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe
Token: SeDebugPrivilege	4408	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
4952	csrsll.exe
4408	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 3488 wrote to memory of 2184	3488	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	86
PID 2184 wrote to memory of 212	2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	87
PID 2184 wrote to memory of 212	2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	87
PID 2184 wrote to memory of 212	2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	87
PID 212 wrote to memory of 2396	212	cmd.exe	90
PID 212 wrote to memory of 2396	212	cmd.exe	90
PID 212 wrote to memory of 2396	212	cmd.exe	90
PID 2184 wrote to memory of 4952	2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	91
PID 2184 wrote to memory of 4952	2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	91
PID 2184 wrote to memory of 4952	2184	44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe	91
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 4408	4952	csrsll.exe	95
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96
PID 4952 wrote to memory of 1636	4952	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
"C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe
  "C:\Users\Admin\AppData\Local\Temp\44634daa90fe59280c824e40bddf6826a626ed9c53dca26d279b73853bfd6d30.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JTPKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:212
  - - 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:2396
- - 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:4952
  - - 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:4408
  - - 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:1636

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\JTPKT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
103b9b2787299aac63accf0775209b1e

SHA1
ff1d76fb5c56b6d0ad73c95697cbb680d255ad92

SHA256
6a33806e2b9d81ccfaad0bd3c9856a3e79ca0b789aa62dd969e66ea05594595a

SHA512
e7a3e4156237b53f52da7e479f0c539d451ec4c2d13e50cc064395bb31b84dae2b3b9155f91faed469fe8c8f77ed44c51cedd83d656fc16f362b18b33bef9c5e

Download Submit
memory/1636-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2184-41-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2184-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2184-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2184-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2184-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2184-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3488-10-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3488-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/3488-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3488-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3488-5-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/3488-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/3488-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/4408-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4952-43-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4952-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4952-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads