modiloader | 5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657a

Analysis

max time kernel
119s
max time network
119s
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 03:38

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General

Target

5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe
Size

90KB
MD5

7634597dda3726e1d3d1a7e13359e420
SHA1

a640416e0ef343ac391db65f78b2c31f00cd2f88
SHA256

5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657a
SHA512

fff7e7fd5c388f1cc933d7dfc112135114fb1839aca91fe6bfd966cc68d6b521a69ad3f2287c50f3816bc4f52c4985d3b7f6b843a8ff1d842d24e9c507b90494
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/3068-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3068-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3068-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3068-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe

Executes dropped EXE 3 IoCs

pid	Process
2272	csrsll.exe
2044	csrsll.exe
3068	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-1-5-21-3756129449-3121373848-4276368241-1000\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 884 set thread context of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 2272 set thread context of 2044	2272	csrsll.exe	97
PID 2272 set thread context of 3068	2272	csrsll.exe	98

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/884-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/884-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4892-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4892-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/884-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4892-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023cb5-29.dat	upx
behavioral2/memory/2272-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4892-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2272-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3068-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3068-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2272-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3068-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3068-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2272-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3068-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4892-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2044-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3068-62-0x0000000000400000-0x0000000000414000-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	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe
Token: SeDebugPrivilege	2044	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe
4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe
2272	csrsll.exe
2044	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 884 wrote to memory of 4892	884	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	84
PID 4892 wrote to memory of 2988	4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	88
PID 4892 wrote to memory of 2988	4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	88
PID 4892 wrote to memory of 2988	4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	88
PID 2988 wrote to memory of 3524	2988	cmd.exe	92
PID 2988 wrote to memory of 3524	2988	cmd.exe	92
PID 2988 wrote to memory of 3524	2988	cmd.exe	92
PID 4892 wrote to memory of 2272	4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	93
PID 4892 wrote to memory of 2272	4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	93
PID 4892 wrote to memory of 2272	4892	5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe	93
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 2044	2272	csrsll.exe	97
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98
PID 2272 wrote to memory of 3068	2272	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe
"C:\Users\Admin\AppData\Local\Temp\5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:884
- C:\Users\Admin\AppData\Local\Temp\5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe
  "C:\Users\Admin\AppData\Local\Temp\5a9fd2a008f3c66b93ca29231fe9174706633213916181339dc931d77c6f657aN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4892
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PUBCI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2988
  - - 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:3524
- - 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:2272
  - - 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:2044
  - - 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:3068

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\PUBCI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
35d2cf07f200d2364d32df7e78df8230

SHA1
7d222d8346f40d0e0c461869b8dbd4f63ea62b8d

SHA256
e6d8fc0754087ba416025d04d620516483c311dbdaa8db0484589021b2c5fdbd

SHA512
93e627edd31f7ea0341a3e44df6eff48472ac57a447ed64c20f6b24159386dbfb2cf46c3aed84f068f00722e8506c6d7fcb0304dd8bdadf73d2c721c99eeffcc

Download Submit
memory/884-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/884-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/884-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/884-6-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/884-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/884-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2044-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2272-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2272-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2272-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2272-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3068-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4892-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4892-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4892-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4892-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4892-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4892-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads