modiloader | 135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34

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, 02:26

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General

Target

135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe
Size

90KB
MD5

2402ee98082f262ef49ae8fea5506ca4
SHA1

178a50316c015469ef50f13055d036db3200f5a9
SHA256

135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34
SHA512

69d96e94bed150787e7ba4a1529f5eafc41a9c626daa08f7bb44201d8a65249561765297128f8ac39002a86a0181a4a75c8c9309ee99d63416fd9e3b672585c4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDk:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3K

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/4876-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4876-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4876-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4876-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe

Executes dropped EXE 3 IoCs

pid	Process
2216	csrsll.exe
4716	csrsll.exe
4876	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-1-5-21-3350944739-639801879-157714471-1000\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 1888 set thread context of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 2216 set thread context of 4716	2216	csrsll.exe	102
PID 2216 set thread context of 4876	2216	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1888-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1888-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4968-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4968-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4968-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1888-16-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb0-30.dat	upx
behavioral2/memory/4968-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2216-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2216-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4876-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4876-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4876-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4876-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2216-54-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4876-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4968-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4716-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4876-62-0x0000000000400000-0x0000000000414000-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	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe
Token: SeDebugPrivilege	4716	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe
4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe
2216	csrsll.exe
4716	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 1888 wrote to memory of 4968	1888	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	89
PID 4968 wrote to memory of 4588	4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	91
PID 4968 wrote to memory of 4588	4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	91
PID 4968 wrote to memory of 4588	4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	91
PID 4588 wrote to memory of 2632	4588	cmd.exe	95
PID 4588 wrote to memory of 2632	4588	cmd.exe	95
PID 4588 wrote to memory of 2632	4588	cmd.exe	95
PID 4968 wrote to memory of 2216	4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	96
PID 4968 wrote to memory of 2216	4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	96
PID 4968 wrote to memory of 2216	4968	135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe	96
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4716	2216	csrsll.exe	102
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103
PID 2216 wrote to memory of 4876	2216	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe
"C:\Users\Admin\AppData\Local\Temp\135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Users\Admin\AppData\Local\Temp\135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe
  "C:\Users\Admin\AppData\Local\Temp\135594fc2891560f2b70746a90019061a7c6ccb574568a41667a933355437e34.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SVGLQ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4588
  - - 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:2632
- - 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:2216
  - - 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:4716
  - - 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:4876

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\SVGLQ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
7aa6d19a3b52af0d0e6f9eb9370ebd4c

SHA1
074c65ad899ca19ffe5556a34c045be590b58ffc

SHA256
48099a075c6850f3d1d8a9c0853e4f94329e758cd06374545f8a9cdc186ec2b4

SHA512
deb1230ebd0dc4ff3e30dff513d50770ab93120e42945dcfb560d23299edb86f32dc88efcedd5898ca1de15cf86d6534bdac73ee09be8ee60af911cf1b64802b

Download Submit
memory/1888-3-0x00000000022D0000-0x00000000022D2000-memory.dmp

Filesize
8KB

Download
memory/1888-7-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1888-6-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/1888-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1888-4-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/1888-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1888-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2216-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2216-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2216-54-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4716-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4876-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4876-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4876-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4876-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4876-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4876-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4968-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4968-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4968-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4968-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4968-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads