modiloader | 7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2024 18:08

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General

Target

7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
Size

90KB
MD5

05a6b431752ae17128c7b12127178350
SHA1

3fb5daa48f9819dd304a403952b8d0a83134c1e0
SHA256

7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71
SHA512

a50925ff25f8d89a155e3e8ca56acc9d4565943b6df8b14d10c5146c35bf437f41997c4252e71edc42d075fb0923f402de000488c9b5f2a8cb2d28a3bd28e73a
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/4592-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4592-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4592-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4592-62-0x0000000000400000-0x0000000000414000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe

Executes dropped EXE 3 IoCs

pid	Process
3900	csrsll.exe
748	csrsll.exe
4592	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-1-5-21-1194130065-3471212556-1656947724-1000\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 2336 set thread context of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 3900 set thread context of 748	3900	csrsll.exe	95
PID 3900 set thread context of 4592	3900	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2336-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2336-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1576-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1576-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1576-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2336-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x00080000000234cb-28.dat	upx
behavioral2/memory/3900-35-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1576-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3900-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3900-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4592-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4592-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4592-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4592-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4592-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3900-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1576-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/748-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4592-62-0x0000000000400000-0x0000000000414000-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	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.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	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe
Token: SeDebugPrivilege	748	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
3900	csrsll.exe
748	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 2336 wrote to memory of 1576	2336	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	87
PID 1576 wrote to memory of 2096	1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	88
PID 1576 wrote to memory of 2096	1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	88
PID 1576 wrote to memory of 2096	1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	88
PID 2096 wrote to memory of 312	2096	cmd.exe	91
PID 2096 wrote to memory of 312	2096	cmd.exe	91
PID 2096 wrote to memory of 312	2096	cmd.exe	91
PID 1576 wrote to memory of 3900	1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	92
PID 1576 wrote to memory of 3900	1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	92
PID 1576 wrote to memory of 3900	1576	7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe	92
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 748	3900	csrsll.exe	95
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96
PID 3900 wrote to memory of 4592	3900	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
"C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe
  "C:\Users\Admin\AppData\Local\Temp\7729063170662155c245524d40ed73cdb67a4b0aa7c504331c5fba523df77d71N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1576
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NAMUL.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2096
  - - 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:312
- - 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:3900
  - - 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:748
  - - 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:4592

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\NAMUL.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
cfe79eef9c0144eb642cb5c4e202c923

SHA1
853918ea1b8e78e8afd22a37e06fa27ecd6882f4

SHA256
3ca3f4575ac4f635e8431b972b9bda01d7b2e3a85882fb322b6c31697fb24910

SHA512
ae6bc3e74c70b6d867450e1c4d44af8dccad2ad1acbd8ca6d72ee3eb7c3d1053a1e68679f6f9feab08281c76a99ed33897210742cbe0b6c1fc20353becf35ae9

Download Submit
memory/748-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1576-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1576-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1576-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1576-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1576-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2336-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/2336-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2336-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2336-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/2336-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/2336-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3900-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3900-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3900-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3900-35-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4592-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4592-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads