modiloader | 8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007

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
16/12/2024, 18:06

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General

Target

8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
Size

300KB
MD5

d179110c09bc742105dbf2c9666f8da0
SHA1

fea4d7603197ea464f22f9f67e91dd0914735e1e
SHA256

8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007
SHA512

af9b066dd979dac61f1aa02080860dcb417b7a8dc716eabe9e0b707d93a7c2f6452d12f6e84a5c875ea61d01eaa9fc165f71ab08f6053d540924ae86c386b6d8
SSDEEP

3072:Ue2A0wxDqUpM5scww4chO+O1BmP5DG0sg3i4XZ9WvDZHwdRX/L+gP38GK:UsxD5cwohO+O1sVG0/pZ6iPC88

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/3252-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3252-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3252-57-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3252-59-0x0000000000400000-0x0000000000414000-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	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe

Executes dropped EXE 3 IoCs

pid	Process
3764	csrsll.exe
4032	csrsll.exe
3252	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 4528 set thread context of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 3764 set thread context of 4032	3764	csrsll.exe	96
PID 3764 set thread context of 3252	3764	csrsll.exe	97

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3292-6-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3292-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3292-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3292-37-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3252-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3252-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3292-56-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3252-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3252-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3252-57-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4032-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3252-59-0x0000000000400000-0x0000000000414000-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	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe
Token: SeDebugPrivilege	4032	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
3764	csrsll.exe
4032	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 4528 wrote to memory of 3292	4528	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	84
PID 3292 wrote to memory of 1380	3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	85
PID 3292 wrote to memory of 1380	3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	85
PID 3292 wrote to memory of 1380	3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	85
PID 1380 wrote to memory of 2236	1380	cmd.exe	89
PID 1380 wrote to memory of 2236	1380	cmd.exe	89
PID 1380 wrote to memory of 2236	1380	cmd.exe	89
PID 3292 wrote to memory of 3764	3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	90
PID 3292 wrote to memory of 3764	3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	90
PID 3292 wrote to memory of 3764	3292	8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe	90
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 4032	3764	csrsll.exe	96
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97
PID 3764 wrote to memory of 3252	3764	csrsll.exe	97

C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
"C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe
  "C:\Users\Admin\AppData\Local\Temp\8e34d1d1dbb936909370a48c509f3f30006654fb9433c8656205489d26ea4007N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3292
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YUIUG.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1380
  - - 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:2236
- - 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:3764
  - - 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:4032
  - - 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:3252

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\YUIUG.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
300KB

MD5
ba058a3694b2c4bafd77b9ae61c7fa18

SHA1
b44605171846f8fc79547ffa200c8d4e9ffc68bb

SHA256
ca4f145cf3f1149750f0aba8332b16fb77ab229e819bd1b7870dac4abaecfe56

SHA512
e4a55cfbd56242b233ec030bb470cb42d35c5ecbb4218dfc3b5832d644dad6a58b84de1510d17f228f0ccf269619852d25fdfb4102a05330b88fea8df1a370c0

Download Submit
memory/3252-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3252-57-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3252-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3252-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3252-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3252-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3292-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3292-37-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3292-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3292-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3292-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-38-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3764-39-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3764-53-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4032-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4528-5-0x0000000002B70000-0x0000000002B72000-memory.dmp

Filesize
8KB

Download
memory/4528-4-0x0000000002B50000-0x0000000002B52000-memory.dmp

Filesize
8KB

Download
memory/4528-3-0x0000000002B40000-0x0000000002B42000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads