modiloader | 17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06f

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
18-12-2024 08:34

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General

Target

17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe
Size

90KB
MD5

e76d2b14975e142a6c322466244fde50
SHA1

7a050003a4b34d7eb2a6355eb3f6f0967c9428e1
SHA256

17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06f
SHA512

d5823198a7bb93125fd7a0058f3d62a301c6029377bf5ca36e0cf740f3c466acf93f14f26b1d2b97f7948759bed11f6d460bb73b1e693e418b6c788f7effb3ea
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

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/3176-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3176-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3176-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3176-62-0x0000000000400000-0x0000000000414000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe

Executes dropped EXE 3 IoCs

pid	Process
4572	csrsll.exe
3512	csrsll.exe
3176	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-1-5-21-493223053-2004649691-1575712786-1000\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 4696 set thread context of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4572 set thread context of 3512	4572	csrsll.exe	98
PID 4572 set thread context of 3176	4572	csrsll.exe	99

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4696-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4696-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2908-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2908-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4696-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2908-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0009000000023c83-29.dat	upx
behavioral2/memory/4572-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2908-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4572-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4572-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3176-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3176-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3176-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3176-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4572-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3176-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2908-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3512-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3176-62-0x0000000000400000-0x0000000000414000-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	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.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	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe
Token: SeDebugPrivilege	3512	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe
2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe
4572	csrsll.exe
3512	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 4696 wrote to memory of 2908	4696	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	84
PID 2908 wrote to memory of 2424	2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	85
PID 2908 wrote to memory of 2424	2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	85
PID 2908 wrote to memory of 2424	2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	85
PID 2424 wrote to memory of 4028	2424	cmd.exe	89
PID 2424 wrote to memory of 4028	2424	cmd.exe	89
PID 2424 wrote to memory of 4028	2424	cmd.exe	89
PID 2908 wrote to memory of 4572	2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	90
PID 2908 wrote to memory of 4572	2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	90
PID 2908 wrote to memory of 4572	2908	17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe	90
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3512	4572	csrsll.exe	98
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99
PID 4572 wrote to memory of 3176	4572	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe
"C:\Users\Admin\AppData\Local\Temp\17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Users\Admin\AppData\Local\Temp\17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe
  "C:\Users\Admin\AppData\Local\Temp\17cb6a90da49dfe6d1c6aec65ffa870d79bfb245171bb3dd802c956e6544a06fN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2908
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\YMYJI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2424
  - - 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:4028
- - 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:4572
  - - 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:3512
  - - 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:3176

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\YMYJI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
3bda4059d7832a2e4f968cb51667c87e

SHA1
29fa9af85b6f28481d4c01e1e854884cf9270de1

SHA256
e0e457c977e9b96c5c2f5bd86d452656aab10aab3f4acc93f27948751f8a7f79

SHA512
1acb51a05e744ba847567e3905002d9580fbb784ab13d21c32c0da8fe484e83357b8f94386764ade8652df6bf12ae111d56fe4334aa47f6eedf4d94abe73f7e9

Download Submit
memory/2908-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2908-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2908-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2908-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2908-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2908-59-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3176-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3176-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3176-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3176-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3176-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3176-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3512-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4572-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4572-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4572-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4572-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4696-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4696-4-0x0000000002510000-0x0000000002512000-memory.dmp

Filesize
8KB

Download
memory/4696-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4696-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4696-6-0x0000000002530000-0x0000000002532000-memory.dmp

Filesize
8KB

Download
memory/4696-3-0x0000000002400000-0x0000000002402000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads