modiloader | 5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 22:23

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General

Target

5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
Size

90KB
MD5

f9b86763ab016469f1c3b26eada65375
SHA1

bfd5face8500082f5467eb55db165657bf60b5db
SHA256

5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b
SHA512

dfbefa413a9f140bade987cbe62bd34f4bdb8c1fed1455f16a4f80e21a500839ca9f09cca3c80a66ee1c11c95d43079476311e96d4fff6c67b8ab225b34415cc
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/2180-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2180-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2180-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2180-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe

Executes dropped EXE 3 IoCs

pid	Process
1692	csrsll.exe
3516	csrsll.exe
2180	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-1-5-21-2878641211-696417878-3864914810-1000\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 1944 set thread context of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1692 set thread context of 3516	1692	csrsll.exe	90
PID 1692 set thread context of 2180	1692	csrsll.exe	91

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1944-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1944-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2168-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2168-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2168-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1944-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c9e-29.dat	upx
behavioral2/memory/1692-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2168-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1692-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1692-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2180-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2180-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2180-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2180-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1692-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2168-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2180-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3516-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2180-63-0x0000000000400000-0x0000000000414000-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	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe
Token: SeDebugPrivilege	3516	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
1692	csrsll.exe
3516	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 1944 wrote to memory of 2168	1944	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	83
PID 2168 wrote to memory of 116	2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	84
PID 2168 wrote to memory of 116	2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	84
PID 2168 wrote to memory of 116	2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	84
PID 116 wrote to memory of 3428	116	cmd.exe	88
PID 116 wrote to memory of 3428	116	cmd.exe	88
PID 116 wrote to memory of 3428	116	cmd.exe	88
PID 2168 wrote to memory of 1692	2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	89
PID 2168 wrote to memory of 1692	2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	89
PID 2168 wrote to memory of 1692	2168	5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe	89
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 3516	1692	csrsll.exe	90
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91
PID 1692 wrote to memory of 2180	1692	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
"C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe
  "C:\Users\Admin\AppData\Local\Temp\5229701cb12661dcdfb9275805d2a9bb2438a3b85908193766f7f288a4c5089b.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UUIJE.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:116
  - - 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:3428
- - 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:1692
  - - 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:3516
  - - 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:2180

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\UUIJE.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
71f0582b2f746349c74453329ff5681c

SHA1
bf0dbe5576037741cd86f2723352685811fb5feb

SHA256
0fa2391a286a3df8a3258c36037d159a3ae0dfee181eb867ad99ffd6ec21134a

SHA512
3228746592c5ad4d488c6ebc10a48a855c5e52d87fddafbe35e76d1677998796cca5e3b28971af805003ea2cef26b772d1bfef4671dd58fa1c8dfb348a7dc533

Download Submit
memory/1692-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1692-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1692-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1692-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1944-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1944-3-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/1944-4-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/1944-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1944-6-0x0000000002A90000-0x0000000002A92000-memory.dmp

Filesize
8KB

Download
memory/1944-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2168-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2168-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2168-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2168-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2168-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2168-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2180-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3516-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads