modiloader | b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285

Analysis

max time kernel
119s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 15:41

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General

Target

b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe
Size

90KB
MD5

8c36aff793b2bf370ff042ee9b3967f0
SHA1

e5084dbb15025d22f8bc8e543c2e8507850ef8bf
SHA256

b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285
SHA512

a6f82f55fa58e2c478e64970a60147ee53bb80afbe3ba08b9326723d16530f2ee7a9e351bdd7f54bc48d6f3d932df337c425ef1275f4d33c57e5d9aafa96584d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDp:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3H

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/2440-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2440-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2440-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2440-59-0x0000000000400000-0x0000000000414000-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	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe

Executes dropped EXE 3 IoCs

pid	Process
3656	csrsll.exe
2740	csrsll.exe
2440	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 2772 set thread context of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 3656 set thread context of 2740	3656	csrsll.exe	95
PID 3656 set thread context of 2440	3656	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2772-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2772-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1424-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1424-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1424-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2772-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023c9a-28.dat	upx
behavioral2/memory/1424-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3656-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3656-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2440-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2440-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3656-55-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1424-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2740-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2440-59-0x0000000000400000-0x0000000000414000-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	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.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	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe
Token: SeDebugPrivilege	2740	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe
1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe
3656	csrsll.exe
2740	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 2772 wrote to memory of 1424	2772	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	84
PID 1424 wrote to memory of 1000	1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	87
PID 1424 wrote to memory of 1000	1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	87
PID 1424 wrote to memory of 1000	1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	87
PID 1000 wrote to memory of 2012	1000	cmd.exe	90
PID 1000 wrote to memory of 2012	1000	cmd.exe	90
PID 1000 wrote to memory of 2012	1000	cmd.exe	90
PID 1424 wrote to memory of 3656	1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	91
PID 1424 wrote to memory of 3656	1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	91
PID 1424 wrote to memory of 3656	1424	b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe	91
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2740	3656	csrsll.exe	95
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96
PID 3656 wrote to memory of 2440	3656	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe
"C:\Users\Admin\AppData\Local\Temp\b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe
  "C:\Users\Admin\AppData\Local\Temp\b5b0e5ec32315259c0002609a21bf3ee5f48ecf6c843508993f0a935a61ff285N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1424
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\XJRIS.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1000
  - - 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:2012
- - 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:3656
  - - 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:2740
  - - 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:2440

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\XJRIS.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d6387d7d1f680bb4cb5fc2c0c0d164af

SHA1
784c3ab5d296c08b70afc4610db51e292f8ac3c5

SHA256
2afcbef9484c019f1d392a73d09491b97c921f9086b00e9e414412f3c60f9610

SHA512
12dd70b1f8025223afada0e14974b094e308dbaee18603f3451af9b07838a5225d894cb4ce433ffaacf8e6748be85365ff4c7d6447bccb96e4022561a6b945a7

Download Submit
memory/1424-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1424-56-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/1424-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1424-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1424-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1424-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2440-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2440-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2740-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2772-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-4-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/2772-3-0x00000000022E0000-0x00000000022E2000-memory.dmp

Filesize
8KB

Download
memory/2772-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2772-6-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/3656-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3656-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3656-55-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads