modiloader | d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 03:22

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General

Target

d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
Size

90KB
MD5

222cbf132adcfd7d72f97059d3a68383
SHA1

4943acc07babd558a20a5ea81964397713da2555
SHA256

d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e
SHA512

9416dd344d04f3f3529cfcbdadf2399b818edf8b40af0364fc23031945514f40984eead2a9e487bcc1768b4489c0b2b42fb85729bd1947c36c46839f1eef048f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDu:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3w

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/3300-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3300-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3300-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/3300-61-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe

Executes dropped EXE 3 IoCs

pid	Process
1588	csrsll.exe
4996	csrsll.exe
3300	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-1-5-21-3756129449-3121373848-4276368241-1000\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 5048 set thread context of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 1588 set thread context of 4996	1588	csrsll.exe	95
PID 1588 set thread context of 3300	1588	csrsll.exe	96

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5048-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/5048-9-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2316-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2316-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/5048-15-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0008000000023cb6-30.dat	upx
behavioral2/memory/2316-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1588-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3300-49-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3300-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3300-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3300-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3300-44-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1588-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2316-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3300-61-0x0000000000400000-0x0000000000414000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe
Token: SeDebugPrivilege	4996	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
1588	csrsll.exe
4996	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 5048 wrote to memory of 2316	5048	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	86
PID 2316 wrote to memory of 2240	2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	87
PID 2316 wrote to memory of 2240	2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	87
PID 2316 wrote to memory of 2240	2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	87
PID 2240 wrote to memory of 928	2240	cmd.exe	90
PID 2240 wrote to memory of 928	2240	cmd.exe	90
PID 2240 wrote to memory of 928	2240	cmd.exe	90
PID 2316 wrote to memory of 1588	2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	91
PID 2316 wrote to memory of 1588	2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	91
PID 2316 wrote to memory of 1588	2316	d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe	91
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 4996	1588	csrsll.exe	95
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96
PID 1588 wrote to memory of 3300	1588	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
"C:\Users\Admin\AppData\Local\Temp\d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Users\Admin\AppData\Local\Temp\d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe
  "C:\Users\Admin\AppData\Local\Temp\d1e49761f421cdc91b306e66afabaed859864603c7a8b473431b224330a3341e.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JOTAA.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2240
  - - 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:928
- - 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:1588
  - - 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:4996
  - - 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:3300

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\JOTAA.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
16abb895af0277acb94badee2cbe4d0f

SHA1
81dfb6a2ae00844b343a09101f494b4e7da5a460

SHA256
83d0af891c5e5efb1e2339ed54f050d775c30d562a2045cc90e2e134c4fec4b0

SHA512
a55b9f06b301131b795160fd57157e1bf2f1501765441aba1a5028a8032c3b30e1ec290b5d445e4145ed2c3876c33cec58b85ba010672eef11957f1562079ab6

Download Submit
memory/1588-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1588-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2316-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2316-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3300-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3300-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3300-61-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3300-44-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3300-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3300-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5048-4-0x0000000002300000-0x0000000002302000-memory.dmp

Filesize
8KB

Download
memory/5048-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5048-15-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/5048-5-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/5048-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/5048-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/5048-9-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads