modiloader | dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 05:50

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General

Target

dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe
Size

90KB
MD5

1968c7257b1447a71be4fc3edab832c5
SHA1

1e877160d574dc3a646bc673a16fc17f515547f7
SHA256

dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc
SHA512

3f4c9ac55a6326c0441a3681d1718dac406529753dee1e7e64a84c03379debfc358af86df410a82e1ddbb66611a1e924e045b87ea26d12243e7c302daa40e9e8
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDm:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE34

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/2044-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2044-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2044-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2044-60-0x0000000000400000-0x0000000000414000-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	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe

Executes dropped EXE 3 IoCs

pid	Process
4464	csrsll.exe
2396	csrsll.exe
2044	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 3424 set thread context of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 4464 set thread context of 2396	4464	csrsll.exe	92
PID 4464 set thread context of 2044	4464	csrsll.exe	93

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3424-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3424-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1076-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1076-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1076-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3424-14-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x000c000000023b6c-28.dat	upx
behavioral2/memory/1076-38-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4464-39-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4464-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2044-45-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2044-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2044-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2044-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2044-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4464-53-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1076-58-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2396-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2044-60-0x0000000000400000-0x0000000000414000-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	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.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	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe
Token: SeDebugPrivilege	2396	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe
1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe
4464	csrsll.exe
2396	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 3424 wrote to memory of 1076	3424	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	83
PID 1076 wrote to memory of 4320	1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	84
PID 1076 wrote to memory of 4320	1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	84
PID 1076 wrote to memory of 4320	1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	84
PID 4320 wrote to memory of 2780	4320	cmd.exe	88
PID 4320 wrote to memory of 2780	4320	cmd.exe	88
PID 4320 wrote to memory of 2780	4320	cmd.exe	88
PID 1076 wrote to memory of 4464	1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	89
PID 1076 wrote to memory of 4464	1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	89
PID 1076 wrote to memory of 4464	1076	dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe	89
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2396	4464	csrsll.exe	92
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93
PID 4464 wrote to memory of 2044	4464	csrsll.exe	93

C:\Users\Admin\AppData\Local\Temp\dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe
"C:\Users\Admin\AppData\Local\Temp\dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe
  "C:\Users\Admin\AppData\Local\Temp\dec6c29bbb92b666cb0a7a53566cd0f065cee73007f50cd7c4a29b00e28309dc.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ITYUI.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4320
  - - 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:2780
- - 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:4464
  - - 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:2396
  - - 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:2044

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\ITYUI.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
d823462db6b89c0782c1721ea9aa46cf

SHA1
e7c42b58d9eb3b851502f8cedbdcc361ab0c6c75

SHA256
600f1249fc065d7170118ab26c01da110354cb350314943095ac403dc2832427

SHA512
e7c2ca012b3c140d5f743289d507e6affb386cedf7d6176da70f22b01cd0bb760f4647e363bc3ce2a3bc92598916e4a84d53a99edab32e12da7740b6f32b968a

Download Submit
memory/1076-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1076-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1076-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1076-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1076-38-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2044-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2044-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2044-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2044-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2044-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2044-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2396-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3424-14-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3424-3-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/3424-4-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/3424-6-0x0000000002350000-0x0000000002352000-memory.dmp

Filesize
8KB

Download
memory/3424-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3424-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4464-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4464-39-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4464-53-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads