modiloader | ba85f5f26f280c82c66961db82c045570b48df07fdc2ef9b9555c6dc69e00988

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
31/08/2024, 08:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4a5d88b420ddf9cdc66167c9e80c15d0N.exe
Size

90KB
MD5

4a5d88b420ddf9cdc66167c9e80c15d0
SHA1

ff1294832e75e50e115092f9be8e5affc082cc75
SHA256

ba85f5f26f280c82c66961db82c045570b48df07fdc2ef9b9555c6dc69e00988
SHA512

e828bcdaf0efa3a0599185d4a18e61fa5113a7cfdc49447a2efaeb04682276f173ba01dc85f5a10ec891f57fd070fd4e755620b1f1e85348452c3cc1460dcc1d
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDP: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/664-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/664-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/664-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/664-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	4a5d88b420ddf9cdc66167c9e80c15d0N.exe

Executes dropped EXE 3 IoCs

pid	Process
1904	csrsll.exe
5032	csrsll.exe
664	csrsll.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1832-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1832-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4152-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4152-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1832-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4152-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4152-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002335b-29.dat	upx
behavioral2/memory/1904-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4152-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1904-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1904-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/664-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/664-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/664-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/664-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1904-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/664-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4152-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5032-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/664-61-0x0000000000400000-0x0000000000414000-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-1-5-21-2412658365-3084825385-3340777666-1000\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 1832 set thread context of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1904 set thread context of 5032	1904	csrsll.exe	100
PID 1904 set thread context of 664	1904	csrsll.exe	101

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	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a5d88b420ddf9cdc66167c9e80c15d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a5d88b420ddf9cdc66167c9e80c15d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe
Token: SeDebugPrivilege	5032	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe
4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe
1904	csrsll.exe
5032	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 1832 wrote to memory of 4152	1832	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	92
PID 4152 wrote to memory of 436	4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	95
PID 4152 wrote to memory of 436	4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	95
PID 4152 wrote to memory of 436	4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	95
PID 436 wrote to memory of 3452	436	cmd.exe	98
PID 436 wrote to memory of 3452	436	cmd.exe	98
PID 436 wrote to memory of 3452	436	cmd.exe	98
PID 4152 wrote to memory of 1904	4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	99
PID 4152 wrote to memory of 1904	4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	99
PID 4152 wrote to memory of 1904	4152	4a5d88b420ddf9cdc66167c9e80c15d0N.exe	99
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 5032	1904	csrsll.exe	100
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101
PID 1904 wrote to memory of 664	1904	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\4a5d88b420ddf9cdc66167c9e80c15d0N.exe
"C:\Users\Admin\AppData\Local\Temp\4a5d88b420ddf9cdc66167c9e80c15d0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Users\Admin\AppData\Local\Temp\4a5d88b420ddf9cdc66167c9e80c15d0N.exe
  "C:\Users\Admin\AppData\Local\Temp\4a5d88b420ddf9cdc66167c9e80c15d0N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4152
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\TXJKH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:436
  - - 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:3452
- - 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:1904
  - - 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:5032
  - - 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:664

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

Loading Replay Monitor...

Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
14aaf3f994ef9214779a92244882a2d9

SHA1
cfe8ea2c77bb3ce60df35b80394798b9a9b21364

SHA256
8905b4513a091542595349a3de3a0c82ab3861a109514ef94e759f8ea2461ee8

SHA512
90de7ba201d68033e90ce61325a0fd59b47ee9097fe1bdb1ac014388a9bcb454038e76ead6be04f26e69d0ae9a966a0cbfc98ca71be08ecdbcc3ed674351f777

Download Submit
memory/664-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/664-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/664-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/664-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/664-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/664-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1832-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-5-0x0000000002B90000-0x0000000002B92000-memory.dmp

Filesize
8KB

Download
memory/1832-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1832-6-0x0000000002BA0000-0x0000000002BA2000-memory.dmp

Filesize
8KB

Download
memory/1832-3-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/1832-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1904-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1904-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1904-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1904-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4152-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4152-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4152-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4152-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4152-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4152-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4152-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5032-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads