modiloader | 85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 23:56

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General

Target

85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe
Size

90KB
MD5

6f8bddb76d93d2f68c6172f0d0ede1a0
SHA1

da3f922a1b80b39c60c85f7e0c2627505a727f10
SHA256

85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c
SHA512

2071a01d9456f9383aaf50efc224568ca86f29f0a51f7ed6ea477214bc9c377b0f2586944d1a337bc8bb9006e404db4238b7d47fff1a08686f87b8774edaaad2
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDX:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3F

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/3980-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3980-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3980-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3980-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe

Executes dropped EXE 3 IoCs

pid	Process
624	csrsll.exe
1280	csrsll.exe
3980	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-1-5-21-2045521122-590294423-3465680274-1000\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 4936 set thread context of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 624 set thread context of 1280	624	csrsll.exe	102
PID 624 set thread context of 3980	624	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4936-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4936-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4920-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4920-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4920-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4936-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023ca9-29.dat	upx
behavioral2/memory/4920-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/624-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/624-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3980-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/624-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3980-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3980-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3980-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3980-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4920-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1280-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3980-61-0x0000000000400000-0x0000000000414000-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	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.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	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe
Token: SeDebugPrivilege	1280	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe
4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe
624	csrsll.exe
1280	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4936 wrote to memory of 4920	4936	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	89
PID 4920 wrote to memory of 4908	4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	92
PID 4920 wrote to memory of 4908	4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	92
PID 4920 wrote to memory of 4908	4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	92
PID 4908 wrote to memory of 4700	4908	cmd.exe	96
PID 4908 wrote to memory of 4700	4908	cmd.exe	96
PID 4908 wrote to memory of 4700	4908	cmd.exe	96
PID 4920 wrote to memory of 624	4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	97
PID 4920 wrote to memory of 624	4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	97
PID 4920 wrote to memory of 624	4920	85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe	97
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 1280	624	csrsll.exe	102
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103
PID 624 wrote to memory of 3980	624	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe
"C:\Users\Admin\AppData\Local\Temp\85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Users\Admin\AppData\Local\Temp\85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe
  "C:\Users\Admin\AppData\Local\Temp\85fa85e864c53ae245b948b733ea94ab8d9ca0cdd84fa5e4dc980e02d0009f1c.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4920
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VHPHY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4908
  - - 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:4700
- - 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:624
  - - 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:1280
  - - 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:3980

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\VHPHY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
aedd89e2014b247eb4873845a0e6da83

SHA1
aff26b34b1cbf91fb8eaaa617bdea4cb9e019e3c

SHA256
12f13c0dd5644db418abb1ffc53a4b4b97630a1f5e66ce66c44abcd508621293

SHA512
c2efd0eef736eefb8b88857b5dc0f3256906c4554b0739a14c67f37bfafd82022235a320a6ce28285eade1cecbaa29ae39951b371eb2826afab9eb2f9ca88512

Download Submit
memory/624-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/624-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/624-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1280-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3980-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3980-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4920-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4920-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4920-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4920-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4920-57-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4920-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4936-5-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/4936-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4936-6-0x0000000002CA0000-0x0000000002CA2000-memory.dmp

Filesize
8KB

Download
memory/4936-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4936-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/4936-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads