modiloader | a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514

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
16-12-2024 01:34

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General

Target

a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
Size

90KB
MD5

e58623ba074a4cb825464ecc9419fb27
SHA1

96aba8516161663220bc5eb6c83086654e002341
SHA256

a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514
SHA512

d8e4b47afcc9e85b1ed1aa43c5cbe70dfe31acec655b664fcbab1ebe5ecbaf80ba5fb8d877b244a4431141a2c1d70ef97ea775eda1256357d111e54ae7b30fbe
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/4692-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4692-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4692-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4692-61-0x0000000000400000-0x0000000000414000-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	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe

Executes dropped EXE 3 IoCs

pid	Process
3088	csrsll.exe
2680	csrsll.exe
4692	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 4068 set thread context of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 3088 set thread context of 2680	3088	csrsll.exe	95
PID 3088 set thread context of 4692	3088	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4068-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4068-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3408-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3408-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4068-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3408-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b99-29.dat	upx
behavioral2/memory/3088-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3408-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3088-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3088-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4692-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4692-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4692-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4692-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4692-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3088-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3408-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2680-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4692-61-0x0000000000400000-0x0000000000414000-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	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	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe
Token: SeDebugPrivilege	2680	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
3088	csrsll.exe
2680	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 4068 wrote to memory of 3408	4068	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	83
PID 3408 wrote to memory of 4800	3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	84
PID 3408 wrote to memory of 4800	3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	84
PID 3408 wrote to memory of 4800	3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	84
PID 4800 wrote to memory of 2320	4800	cmd.exe	88
PID 4800 wrote to memory of 2320	4800	cmd.exe	88
PID 4800 wrote to memory of 2320	4800	cmd.exe	88
PID 3408 wrote to memory of 3088	3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	89
PID 3408 wrote to memory of 3088	3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	89
PID 3408 wrote to memory of 3088	3408	a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe	89
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 2680	3088	csrsll.exe	95
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96
PID 3088 wrote to memory of 4692	3088	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
"C:\Users\Admin\AppData\Local\Temp\a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Users\Admin\AppData\Local\Temp\a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe
  "C:\Users\Admin\AppData\Local\Temp\a392050264119730a340119a7cf5048574a91e1081f73adfc268912ff13be514.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3408
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DFRSN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4800
  - - 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:2320
- - 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:3088
  - - 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:2680
  - - 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:4692

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\DFRSN.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
35949c671a52125b882837c15ae59d56

SHA1
b067446517f699220d2eb003e182a2500f1784b5

SHA256
76b443d5639302c63ca6987141757388b321ea2a0ebdbbd0cc43eb008311ec07

SHA512
3f9a004561223109e5b1db80b5d359cf46b5065358e338980f461863efff06b38cb0963d814aa4c104cfcc3088fa66c541aa4d921cf8045fc8d41939b3c1d55f

Download Submit
memory/2680-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3088-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3088-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3408-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3408-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3408-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3408-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3408-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3408-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4068-4-0x0000000002A20000-0x0000000002A22000-memory.dmp

Filesize
8KB

Download
memory/4068-6-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4068-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4068-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4068-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4068-3-0x0000000002A10000-0x0000000002A12000-memory.dmp

Filesize
8KB

Download
memory/4692-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4692-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4692-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4692-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4692-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4692-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads