modiloader | 3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 23:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe
Size

90KB
MD5

a91150aafd539bd81412fe8ded578698
SHA1

ffb235bcec1bd17e1279441878765497b74f5307
SHA256

3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866
SHA512

1742da7dd01dbf3db1f5e20ae208c97b035c39364e5b224129cedb0c54fbc9ecb315bced59f1f57c65b74b3fd4c931ee6d72cf9994d307a1f4356b8b6cda9e36
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDj:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE39

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/3836-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3836-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3836-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3836-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe

Executes dropped EXE 3 IoCs

pid	Process
4596	csrsll.exe
4080	csrsll.exe
3836	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-1-5-21-3350944739-639801879-157714471-1000\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 2312 set thread context of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 4596 set thread context of 4080	4596	csrsll.exe	102
PID 4596 set thread context of 3836	4596	csrsll.exe	103

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2312-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2312-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2432-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2432-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2432-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2312-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000b000000023b65-29.dat	upx
behavioral2/memory/2432-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4596-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4596-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3836-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3836-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3836-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3836-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4596-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3836-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2432-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4080-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3836-62-0x0000000000400000-0x0000000000414000-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	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	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.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	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe
Token: SeDebugPrivilege	4080	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe
2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe
4596	csrsll.exe
4080	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2312 wrote to memory of 2432	2312	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	83
PID 2432 wrote to memory of 4936	2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	91
PID 2432 wrote to memory of 4936	2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	91
PID 2432 wrote to memory of 4936	2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	91
PID 4936 wrote to memory of 4908	4936	cmd.exe	95
PID 4936 wrote to memory of 4908	4936	cmd.exe	95
PID 4936 wrote to memory of 4908	4936	cmd.exe	95
PID 2432 wrote to memory of 4596	2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	96
PID 2432 wrote to memory of 4596	2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	96
PID 2432 wrote to memory of 4596	2432	3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe	96
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 4080	4596	csrsll.exe	102
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103
PID 4596 wrote to memory of 3836	4596	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe
"C:\Users\Admin\AppData\Local\Temp\3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe
  "C:\Users\Admin\AppData\Local\Temp\3862305dcc2a0713816fabceacebbb75c01afb1ac6d1ebbbea98eda4be9b4866.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2432
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SWIJG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4936
  - - 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:4908
- - 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:4596
  - - 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:4080
  - - 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:3836

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\SWIJG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
f46ec7c626b166b10a74966b00f70410

SHA1
71d2ab78b29b8793a71e695561ef47434e20e957

SHA256
11b34475772a9be923bc126250134a5f1d20670c3dcf12280ff45496f385f987

SHA512
d497d7335ffc0af042b5c11f58c629d6025e47605f912b9fd2fd721d42c2c3f3a0aba6b657c050b5297e9cc909a68b002df2d8a7c71334eb33dbd64fef18e5e0

Download Submit
memory/2312-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2312-3-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/2312-4-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/2312-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2312-6-0x0000000002B80000-0x0000000002B82000-memory.dmp

Filesize
8KB

Download
memory/2312-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2432-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2432-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2432-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2432-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2432-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2432-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3836-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3836-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3836-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3836-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3836-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3836-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4080-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4596-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4596-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads