modiloader | 93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 17:07

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General

Target

93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe
Size

90KB
MD5

375123fd2bc467bb66192aad2bd1a7b0
SHA1

cef81251f541dbc331cceedc28bd86a0e5bc2994
SHA256

93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433
SHA512

5e554f534a9af6d4f788cb08cccda36192d9b7255d9971dfa781da168de937f484066212625dbfcd8ddfe6f6f8b1de5bb81404cf55ee9112dc3f6616c1562563
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/2336-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2336-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2336-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2336-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe

Executes dropped EXE 3 IoCs

pid	Process
1992	csrsll.exe
1036	csrsll.exe
2336	csrsll.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1648-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1648-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1648-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2224-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2224-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023453-29.dat	upx
behavioral2/memory/1992-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2224-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1992-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1992-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2336-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2336-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2336-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2336-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1992-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2336-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2224-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1036-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2336-61-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-2392887640-1187051047-2909758433-1000\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 1648 set thread context of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1992 set thread context of 1036	1992	csrsll.exe	95
PID 1992 set thread context of 2336	1992	csrsll.exe	96

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	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.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	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe
Token: SeDebugPrivilege	1036	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe
2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe
1992	csrsll.exe
1036	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 1648 wrote to memory of 2224	1648	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	84
PID 2224 wrote to memory of 4624	2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	87
PID 2224 wrote to memory of 4624	2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	87
PID 2224 wrote to memory of 4624	2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	87
PID 4624 wrote to memory of 1008	4624	cmd.exe	90
PID 4624 wrote to memory of 1008	4624	cmd.exe	90
PID 4624 wrote to memory of 1008	4624	cmd.exe	90
PID 2224 wrote to memory of 1992	2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	91
PID 2224 wrote to memory of 1992	2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	91
PID 2224 wrote to memory of 1992	2224	93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe	91
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 1036	1992	csrsll.exe	95
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96
PID 1992 wrote to memory of 2336	1992	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe
"C:\Users\Admin\AppData\Local\Temp\93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Local\Temp\93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe
  "C:\Users\Admin\AppData\Local\Temp\93a56afa540b8ecf8c6a307e5d71397d4fc730478fa9cf65489c5b9399319433N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WTSWK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4624
  - - 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:1008
- - 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:1992
  - - 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:1036
  - - 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:2336

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\WTSWK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2e083c41dbb1285926a852d9a6ff3811

SHA1
2bef22133fb1df876c315a175d0ac1bb8b8e74b9

SHA256
7446ebf738205e25a9d332422653061465df19e8655f29ffefa47d168283543a

SHA512
f4f038607167321227ecba8f285420594d4f1f6bfafc4706b44671919a0c41440f504d99ec811b08b76347e7afad03f215b3c3335ccaed7ee19fecad5df8fdf1

Download Submit
memory/1036-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1648-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/1648-4-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/1648-6-0x0000000002A80000-0x0000000002A82000-memory.dmp

Filesize
8KB

Download
memory/1648-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1648-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1992-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2224-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/2224-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2224-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2336-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2336-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2336-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2336-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2336-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2336-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads