modiloader | c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506

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
22-12-2024 13:51

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General

Target

c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
Size

90KB
MD5

24868172cb52466812b093aff60c19c0
SHA1

6472a5dd85f7f3813db2c2d770d31ca4c88ca672
SHA256

c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506
SHA512

529b23facc007d509cb220a0ea8b132385f43dd81077819691bd7cbf1f34c5bf1496abd5c8039585126d5e411848feb165da25a978874f1eea5a5255d35a53f5
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDz:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3J

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/5076-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5076-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5076-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/5076-61-0x0000000000400000-0x0000000000414000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe

Executes dropped EXE 3 IoCs

pid	Process
3596	csrsll.exe
1976	csrsll.exe
5076	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-1-5-21-1045960512-3948844814-3059691613-1000\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 2760 set thread context of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 3596 set thread context of 1976	3596	csrsll.exe	97
PID 3596 set thread context of 5076	3596	csrsll.exe	98

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2760-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2760-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3612-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3612-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2760-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3612-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b77-29.dat	upx
behavioral2/memory/3612-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3596-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3596-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5076-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5076-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5076-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/5076-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3596-56-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5076-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3612-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1976-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5076-61-0x0000000000400000-0x0000000000414000-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	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe
Token: SeDebugPrivilege	1976	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
3596	csrsll.exe
1976	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 2760 wrote to memory of 3612	2760	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	83
PID 3612 wrote to memory of 3824	3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	84
PID 3612 wrote to memory of 3824	3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	84
PID 3612 wrote to memory of 3824	3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	84
PID 3824 wrote to memory of 4676	3824	cmd.exe	88
PID 3824 wrote to memory of 4676	3824	cmd.exe	88
PID 3824 wrote to memory of 4676	3824	cmd.exe	88
PID 3612 wrote to memory of 3596	3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	89
PID 3612 wrote to memory of 3596	3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	89
PID 3612 wrote to memory of 3596	3612	c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe	89
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 1976	3596	csrsll.exe	97
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98
PID 3596 wrote to memory of 5076	3596	csrsll.exe	98

C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
"C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe
  "C:\Users\Admin\AppData\Local\Temp\c3ffb4701422c1832a9eefd2d0bfc86bebf08adc2940717f9d45568c4e34f506N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\NBNYV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3824
  - - 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:4676
- - 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:3596
  - - 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:1976
  - - 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:5076

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\NBNYV.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
2c1d9fa95648471033ca6eb709b1872c

SHA1
05ac30b16400a6d4b4af154da97adedb61afdf06

SHA256
ceff439db5ce52fcd7dce5a557b47f0e01e87fd45b2ae65be26f69396b4225c3

SHA512
f2cae08dcbfce93f7ade93bc6948fe184a8368537451cc8a6afb13aea865799ad50484812265f62c1834a53798e6c1d1c502aec3e139154ad380ce3b38df58ee

Download Submit
memory/1976-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2760-3-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/2760-4-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/2760-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/2760-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2760-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2760-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3596-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3596-56-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3596-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3612-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3612-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5076-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5076-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads