modiloader | bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1

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
18-12-2024 02:22

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General

Target

bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
Size

90KB
MD5

bb37524de39837aa31846d9e01efd20f
SHA1

cfa23177d898c65dd56f316fccd6b0dce09b3872
SHA256

bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1
SHA512

403412d0299304809a9cd2ee3121ef610ac348cb7ccbda9fe713b4dc627eff9e6e5702891cf97b0b3558b8deb38763ffc25a5d513076afe5cce78e2d19906cad
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDs: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/4896-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-60-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4896-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe

Executes dropped EXE 3 IoCs

pid	Process
3036	csrsll.exe
5036	csrsll.exe
4896	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 5068 set thread context of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 3036 set thread context of 5036	3036	csrsll.exe	93
PID 3036 set thread context of 4896	3036	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5068-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5068-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3040-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3040-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3040-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5068-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b8d-29.dat	upx
behavioral2/memory/3040-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3036-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4896-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3036-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3036-51-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4896-60-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3040-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4896-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5036-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4896-62-0x0000000000400000-0x0000000000414000-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	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	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe
Token: SeDebugPrivilege	5036	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
3036	csrsll.exe
5036	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 5068 wrote to memory of 3040	5068	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	82
PID 3040 wrote to memory of 2880	3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	83
PID 3040 wrote to memory of 2880	3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	83
PID 3040 wrote to memory of 2880	3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	83
PID 2880 wrote to memory of 4808	2880	cmd.exe	86
PID 2880 wrote to memory of 4808	2880	cmd.exe	86
PID 2880 wrote to memory of 4808	2880	cmd.exe	86
PID 3040 wrote to memory of 3036	3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	87
PID 3040 wrote to memory of 3036	3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	87
PID 3040 wrote to memory of 3036	3040	bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe	87
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 5036	3036	csrsll.exe	93
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94
PID 3036 wrote to memory of 4896	3036	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
"C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5068
- C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe
  "C:\Users\Admin\AppData\Local\Temp\bd788618c8dad883e1fbd5e7cb4876454fb319bfe898adb4f3e1d99ccb3b97c1.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3040
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CRSPY.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2880
  - - 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:4808
- - 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:3036
  - - 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:5036
  - - 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:4896

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\CRSPY.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
434bd37052581c2364bc907dafa7040c

SHA1
ddcfa6e6b0e018448afada2b053f60384d163d4c

SHA256
fd0fd1edcf0d6379eaf7d7db46433d2a11f31c40d72d2e6f821afd5a384411b6

SHA512
c429d97421d756e645c2b38c27f211624c061a594b90ef1aa7c20b43643c1bf4cddf13e8720198777db69cb83ea3dbc93bc8f3a6d60b77935fcc737a62af9ad4

Download Submit
memory/3036-51-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3036-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3036-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3040-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3040-54-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4896-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4896-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5036-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5068-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5068-3-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/5068-4-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/5068-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/5068-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5068-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads