modiloader | 1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfd

Analysis

max time kernel
119s
max time network
120s
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 00:57

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General

Target

1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe
Size

90KB
MD5

6b567ace931b78fab64f84eeab8ce3e0
SHA1

bde2429908ab5dca63c5492d76a6193c971be097
SHA256

1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfd
SHA512

790ecdc0fac6ed32841f1303d74c215fe509f2d6d817dc34f3d7d75cf7a2dce9fed7f388fe87a3b2614268a1139704d7348c56ac9225ef41f8838da584c253f4
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDl:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3r

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/2616-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2616-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2616-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2616-64-0x0000000000400000-0x0000000000414000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe

Executes dropped EXE 3 IoCs

pid	Process
1624	csrsll.exe
4100	csrsll.exe
2616	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-1-5-21-4050598569-1597076380-177084960-1000\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 64 set thread context of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 1624 set thread context of 4100	1624	csrsll.exe	95
PID 1624 set thread context of 2616	1624	csrsll.exe	96

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/64-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/64-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3440-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3440-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/64-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3440-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b8b-30.dat	upx
behavioral2/memory/3440-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1624-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1624-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2616-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2616-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2616-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2616-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1624-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2616-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3440-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4100-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2616-64-0x0000000000400000-0x0000000000414000-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	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.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	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe
Token: SeDebugPrivilege	4100	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe
3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe
1624	csrsll.exe
4100	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 64 wrote to memory of 3440	64	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	87
PID 3440 wrote to memory of 4180	3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	88
PID 3440 wrote to memory of 4180	3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	88
PID 3440 wrote to memory of 4180	3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	88
PID 4180 wrote to memory of 2976	4180	cmd.exe	91
PID 4180 wrote to memory of 2976	4180	cmd.exe	91
PID 4180 wrote to memory of 2976	4180	cmd.exe	91
PID 3440 wrote to memory of 1624	3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	92
PID 3440 wrote to memory of 1624	3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	92
PID 3440 wrote to memory of 1624	3440	1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe	92
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 4100	1624	csrsll.exe	95
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96
PID 1624 wrote to memory of 2616	1624	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe
"C:\Users\Admin\AppData\Local\Temp\1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:64
- C:\Users\Admin\AppData\Local\Temp\1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe
  "C:\Users\Admin\AppData\Local\Temp\1695c2d5d5ae8105ea83fd62b298988abc33c939995eff1e762da26f06d57dfdN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3440
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CUYTP.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4180
  - - 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:2976
- - 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:1624
  - - 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:4100
  - - 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:2616

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\CUYTP.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
52dacd55a8d1f9363d71130f6cc7dbf7

SHA1
cd962573748a7ba967c67ca00129f4d1ddfcb6b7

SHA256
7b8442c33a6c327fcc1f5eadd80ebd5f42d14083dc3541a484fa5b8ad0e23ed7

SHA512
870e41f8985dbc3857330e33a7ebf5df7abbbf67b2241de7bc85c6ffe19104abef7d68e359112145f345ba5ef17545739d7c25a0ab4e1e541c7f51b6a1976555

Download Submit
memory/64-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/64-4-0x0000000002C70000-0x0000000002C72000-memory.dmp

Filesize
8KB

Download
memory/64-7-0x0000000002C90000-0x0000000002C92000-memory.dmp

Filesize
8KB

Download
memory/64-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/64-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/64-6-0x0000000002C80000-0x0000000002C82000-memory.dmp

Filesize
8KB

Download
memory/64-3-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1624-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1624-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1624-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2616-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2616-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2616-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2616-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2616-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2616-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3440-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3440-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4100-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads