modiloader | 5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8

Analysis

max time kernel
119s
max time network
118s
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 02:17

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General

Target

5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
Size

90KB
MD5

ac0fc6b9c0d8095f14fa2bb918092d10
SHA1

1fecf1d91f30d0533a6ff9e5049133efe61a294f
SHA256

5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8
SHA512

48a05183e40bfd07295f4da22e6113a4ce088c7d53d9343094d9fce614092105bd94338739bc579d44ef268c3a7f89dc0950995fb429a95fd6e02ac64813c8ee
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/4496-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4496-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4496-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4496-63-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe

Executes dropped EXE 3 IoCs

pid	Process
2988	csrsll.exe
4704	csrsll.exe
4496	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-1-5-21-3227495264-2217614367-4027411560-1000\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 1612 set thread context of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 2988 set thread context of 4704	2988	csrsll.exe	88
PID 2988 set thread context of 4496	2988	csrsll.exe	89

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1612-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1612-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1672-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1672-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1672-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1612-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cab-29.dat	upx
behavioral2/memory/2988-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1672-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2988-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2988-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4496-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4496-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4496-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2988-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4496-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4496-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1672-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4704-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4496-63-0x0000000000400000-0x0000000000414000-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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe
Token: SeDebugPrivilege	4704	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
2988	csrsll.exe
4704	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1612 wrote to memory of 1672	1612	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	82
PID 1672 wrote to memory of 4952	1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	83
PID 1672 wrote to memory of 4952	1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	83
PID 1672 wrote to memory of 4952	1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	83
PID 4952 wrote to memory of 4428	4952	cmd.exe	86
PID 4952 wrote to memory of 4428	4952	cmd.exe	86
PID 4952 wrote to memory of 4428	4952	cmd.exe	86
PID 1672 wrote to memory of 2988	1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	87
PID 1672 wrote to memory of 2988	1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	87
PID 1672 wrote to memory of 2988	1672	5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe	87
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4704	2988	csrsll.exe	88
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89
PID 2988 wrote to memory of 4496	2988	csrsll.exe	89

C:\Users\Admin\AppData\Local\Temp\5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
"C:\Users\Admin\AppData\Local\Temp\5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Users\Admin\AppData\Local\Temp\5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe
  "C:\Users\Admin\AppData\Local\Temp\5d3c29942cba466b775754b86df9bb2015a2cd40be88e38219f7ff688ad0bce8N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1672
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YCMSK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4952
  - - 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:4428
- - 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:2988
  - - 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:4704
  - - 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:4496

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\YCMSK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
003e04c4ba3ce828271a786bdba3765d

SHA1
a7d43dbf72e2fe038ac0f06923b97ffedf7ab43b

SHA256
c73181d27376f64ee072eb5efd11f0394d85b3acb5d2b9c80a764349020e9e9a

SHA512
c538712c140e73020487c0d52a364e24fdef5ae4643e162fba00fd2ba44b43923eeb03f5bae67b5a52b1ae2267557d4804202fae75a3cd03af5709a253c69521

Download Submit
memory/1612-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1612-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1612-4-0x0000000002410000-0x0000000002412000-memory.dmp

Filesize
8KB

Download
memory/1612-7-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/1612-6-0x0000000002430000-0x0000000002432000-memory.dmp

Filesize
8KB

Download
memory/1612-3-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download
memory/1612-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1672-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1672-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1672-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1672-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1672-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2988-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2988-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2988-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2988-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4496-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4496-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4496-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4496-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4496-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4496-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4704-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads