modiloader | 27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4

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
06-12-2024 23:55

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General

Target

27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe
Size

300KB
MD5

1706bf3181f5d5d439cafdc95b41b719
SHA1

e52b26611e3944de0580b27aad43adddebec7dc6
SHA256

27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4
SHA512

093def6fc62c301e287192bd71c4e60ee8788077dbd8c5e26a8c6b47a2c3eb1ceee307fb96897982d2a04214b00101ccb125d0440e4f148e4d5d29729be73ea2
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38G+:UsxD5cwohO+O1sVG0/pZ6iPC8o

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/1312-49-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1312-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1312-50-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1312-58-0x0000000000400000-0x0000000000414000-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	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe

Executes dropped EXE 3 IoCs

pid	Process
1232	csrsll.exe
3436	csrsll.exe
1312	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 824 set thread context of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 1232 set thread context of 3436	1232	csrsll.exe	100
PID 1232 set thread context of 1312	1232	csrsll.exe	101

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/520-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/520-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/520-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/520-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1312-42-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1312-48-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1312-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1312-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1312-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/520-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3436-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1312-58-0x0000000000400000-0x0000000000414000-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	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.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	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe
Token: SeDebugPrivilege	3436	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe
520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe
1232	csrsll.exe
3436	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 824 wrote to memory of 520	824	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	83
PID 520 wrote to memory of 2756	520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	84
PID 520 wrote to memory of 2756	520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	84
PID 520 wrote to memory of 2756	520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	84
PID 2756 wrote to memory of 756	2756	cmd.exe	88
PID 2756 wrote to memory of 756	2756	cmd.exe	88
PID 2756 wrote to memory of 756	2756	cmd.exe	88
PID 520 wrote to memory of 1232	520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	89
PID 520 wrote to memory of 1232	520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	89
PID 520 wrote to memory of 1232	520	27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe	89
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 3436	1232	csrsll.exe	100
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101
PID 1232 wrote to memory of 1312	1232	csrsll.exe	101

C:\Users\Admin\AppData\Local\Temp\27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe
"C:\Users\Admin\AppData\Local\Temp\27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Local\Temp\27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe
  "C:\Users\Admin\AppData\Local\Temp\27733d66f3b13fa92894131a54aae60376205a0c0d4e0378677a510c495c14d4.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:520
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\QHUQO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2756
  - - 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:756
- - 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:1232
  - - 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:3436
  - - 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:1312

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\QHUQO.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
005add5eb7d099ff65ee0dad8a880c3a

SHA1
be08561bcb62fb7db79eabda3a9f99c18f5ab1e1

SHA256
cfcc9f62f4395a1eadf309dba6f978235465b911a2a0b712f30cd6c178e87f99

SHA512
80979e5db7651ea8f84d25087a1636a0d2746da7442ce11ec266afc13356ef9809dc768ec170ea375bde86208ddb4ece1f0cb63b397adebaadc2f743135e02c6

Download Submit
memory/520-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/520-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/520-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/520-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/520-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/824-6-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/824-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/824-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download
memory/824-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/824-5-0x0000000002B60000-0x0000000002B62000-memory.dmp

Filesize
8KB

Download
memory/1232-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1232-53-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1312-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1312-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1312-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1312-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1312-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1312-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads