modiloader | 2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 20:33

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General

Target

2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe
Size

90KB
MD5

93ab844837eec5f3cfebc7a4b79798ef
SHA1

1a9eebdaa824e839d75a3d570f474994358c86f7
SHA256

2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6
SHA512

48665d58ae3e946ccd6e44c75312589e31502ffbb7770873bb127394df6613d4244346ab7ec33af0bd9b69aeda1f4f59ccced210da0b1e56160c86a5445a0240
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/3220-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe

Executes dropped EXE 3 IoCs

pid	Process
4532	csrsll.exe
4712	csrsll.exe
3220	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-1-5-21-2045521122-590294423-3465680274-1000\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 2000 set thread context of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 4532 set thread context of 4712	4532	csrsll.exe	90
PID 4532 set thread context of 3220	4532	csrsll.exe	91

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2000-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2000-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3324-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3324-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3324-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2000-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b7a-29.dat	upx
behavioral2/memory/4532-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3324-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4532-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4532-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3220-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3220-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3220-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3220-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3220-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4532-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3324-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4712-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3220-63-0x0000000000400000-0x0000000000414000-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	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	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe
Token: SeDebugPrivilege	4712	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe
3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe
4532	csrsll.exe
4712	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 2000 wrote to memory of 3324	2000	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	83
PID 3324 wrote to memory of 3628	3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	84
PID 3324 wrote to memory of 3628	3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	84
PID 3324 wrote to memory of 3628	3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	84
PID 3628 wrote to memory of 1228	3628	cmd.exe	88
PID 3628 wrote to memory of 1228	3628	cmd.exe	88
PID 3628 wrote to memory of 1228	3628	cmd.exe	88
PID 3324 wrote to memory of 4532	3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	89
PID 3324 wrote to memory of 4532	3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	89
PID 3324 wrote to memory of 4532	3324	2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe	89
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 4712	4532	csrsll.exe	90
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91
PID 4532 wrote to memory of 3220	4532	csrsll.exe	91

C:\Users\Admin\AppData\Local\Temp\2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe
"C:\Users\Admin\AppData\Local\Temp\2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Local\Temp\2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe
  "C:\Users\Admin\AppData\Local\Temp\2e9f74f6f7ec42cce23aa3e9b3d2ea5e30d63f768da20718bd9bf57413dbc7f6.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3324
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YKSKT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3628
  - - 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:1228
- - 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:4532
  - - 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:4712
  - - 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:3220

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\YKSKT.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f43fe6d92293e2dfb9cc3ade250e20ff

SHA1
7a9411103c0348b21af42e5209124c58073b97a7

SHA256
dcd68596faa2d4dd107e0ec646ca7730eabd615b2cf1c7200f9fd80cc91fd8c3

SHA512
63fa922b663534d7f977e51afa69d415756ea39679a665657735de40332c814e5f5399f4d788c3a7fa00d3d6a30805ac3efef2363459e77b197b0ba16cd0c8a3

Download Submit
memory/2000-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/2000-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2000-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2000-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2000-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/2000-3-0x0000000002A50000-0x0000000002A52000-memory.dmp

Filesize
8KB

Download
memory/3220-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3220-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3220-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3220-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3220-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3220-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3324-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3324-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3324-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3324-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3324-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3324-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4532-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4532-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4532-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4532-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4712-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads