modiloader | 1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687

Analysis

max time kernel
119s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 17:09

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General

Target

1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe
Size

90KB
MD5

a226ddba073312ad97b3181cfeff5aa0
SHA1

19ac44d361276001f4986dc8f6329bb1529fc116
SHA256

1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687
SHA512

3f6587ec95b1eb30d6d16fe3c9d1c84502509cbe41ab4f7530affad73af04b15ff8b1a89cfcce216093b946cb1a8123b2f959fc0347fa16647abf5f1879d6c20
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/1772-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1772-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1772-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1772-62-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe

Executes dropped EXE 3 IoCs

pid	Process
4432	csrsll.exe
1584	csrsll.exe
1772	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-1-5-21-4089630652-1596403869-279772308-1000\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 4080 set thread context of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4432 set thread context of 1584	4432	csrsll.exe	95
PID 4432 set thread context of 1772	4432	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4080-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4080-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4264-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4264-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4264-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4080-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b76-29.dat	upx
behavioral2/memory/4432-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4264-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4432-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4432-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1772-47-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1772-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1772-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1772-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4432-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1772-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4264-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1584-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1772-62-0x0000000000400000-0x0000000000414000-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	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.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	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe
Token: SeDebugPrivilege	1584	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe
4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe
4432	csrsll.exe
1584	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4080 wrote to memory of 4264	4080	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	82
PID 4264 wrote to memory of 4948	4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	85
PID 4264 wrote to memory of 4948	4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	85
PID 4264 wrote to memory of 4948	4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	85
PID 4948 wrote to memory of 2360	4948	cmd.exe	88
PID 4948 wrote to memory of 2360	4948	cmd.exe	88
PID 4948 wrote to memory of 2360	4948	cmd.exe	88
PID 4264 wrote to memory of 4432	4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	89
PID 4264 wrote to memory of 4432	4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	89
PID 4264 wrote to memory of 4432	4264	1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe	89
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1584	4432	csrsll.exe	95
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96
PID 4432 wrote to memory of 1772	4432	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe
"C:\Users\Admin\AppData\Local\Temp\1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Users\Admin\AppData\Local\Temp\1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe
  "C:\Users\Admin\AppData\Local\Temp\1e72a9638958ea22f0e5214f47befbab9ddb376f95cf6b0e6ddfa796696ca687N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4264
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UHIEC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4948
  - - 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:2360
- - 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:4432
  - - 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:1584
  - - 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:1772

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\UHIEC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b04c2389ac8aa112b46eaf15782468ae

SHA1
4c2e9cae1b910d421638556d49dff45983468713

SHA256
04133e069f62b2863015b978b9d56c5c5d1333eb034ec3c01cc980875f02ffde

SHA512
2180e6262aeb2c1b645a8359d18e828eaae2df5c9e7418a71c50cec68c59978380379fcd6f7b2c822e80b713fee0368c346ecc753913348943886f3ea9d7353c

Download Submit
memory/1584-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1772-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1772-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1772-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1772-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1772-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1772-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4080-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4080-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4080-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4080-5-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4080-6-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/4080-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4264-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4264-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4264-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4264-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4264-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4264-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4432-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4432-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4432-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4432-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads