modiloader | fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430

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
17-12-2024 20:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe
Size

90KB
MD5

31e70adcfe761de58d23919e65d87a62
SHA1

7de18e24e2640018ceb69217dcdfc45274ee87e4
SHA256

fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430
SHA512

55f2c8c3e6c7aac2c4bdbb9987a4996f534f9e40e73fb507f7864bc6229b0bdb8879b82be1e2864c709f24122f94d7490bc5be7030dbd8d835ab0c6d4e6e9761
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDW:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3E

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 3 IoCs

resource	yara_rule
behavioral2/memory/448-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/448-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/448-64-0x0000000000400000-0x0000000000414000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe

Executes dropped EXE 3 IoCs

pid	Process
4528	csrsll.exe
3504	csrsll.exe
448	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-1-5-21-4089630652-1596403869-279772308-1000\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 1388 set thread context of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 4528 set thread context of 3504	4528	csrsll.exe	93
PID 4528 set thread context of 448	4528	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1388-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1388-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4864-8-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4864-10-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1388-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4864-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4864-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b68-30.dat	upx
behavioral2/memory/4864-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4528-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4528-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/448-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/448-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/448-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/448-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4528-59-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4864-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3504-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/448-64-0x0000000000400000-0x0000000000414000-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	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.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	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe
Token: SeDebugPrivilege	3504	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe
4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe
4528	csrsll.exe
3504	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 1388 wrote to memory of 4864	1388	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	82
PID 4864 wrote to memory of 2664	4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	83
PID 4864 wrote to memory of 2664	4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	83
PID 4864 wrote to memory of 2664	4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	83
PID 2664 wrote to memory of 3412	2664	cmd.exe	86
PID 2664 wrote to memory of 3412	2664	cmd.exe	86
PID 2664 wrote to memory of 3412	2664	cmd.exe	86
PID 4864 wrote to memory of 4528	4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	87
PID 4864 wrote to memory of 4528	4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	87
PID 4864 wrote to memory of 4528	4864	fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe	87
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 3504	4528	csrsll.exe	93
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94
PID 4528 wrote to memory of 448	4528	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe
"C:\Users\Admin\AppData\Local\Temp\fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe
  "C:\Users\Admin\AppData\Local\Temp\fca0c29fb28ee09eee2ab69b8b31b44b285fdcdffd285a8e8fb1822156b3a430.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4864
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JWXAK.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2664
  - - 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:3412
- - 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:4528
  - - 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:3504
  - - 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:448

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\JWXAK.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
54e717966f8b29d32fe73acdc019e43a

SHA1
3c46156cfe7d338d7f5b498c2ac9d12d285a9be3

SHA256
3aaec245776c6add1dae36c0a2e3a5b110178aa62109484bc8101b664532d335

SHA512
2422b3710b521589e6db3e51815073029eac666b1963bc67eea8f8b837aa39e9926851dc08fff998a429b9d3947fb1d2cba97b625019f07f0f94c8f8cf9070dc

Download Submit
memory/448-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/448-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/448-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/448-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/448-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1388-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-6-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/1388-3-0x00000000021A0000-0x00000000021A2000-memory.dmp

Filesize
8KB

Download
memory/1388-4-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/1388-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1388-7-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/3504-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4528-59-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4528-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4528-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4864-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4864-10-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4864-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4864-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4864-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4864-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4864-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads