modiloader | 79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 07:45

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General

Target

79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
Size

90KB
MD5

8e40864e3f7710a17e8f8a3d6902d590
SHA1

4b978f4953ee45a570d2bfdf23ced07b641d5e3a
SHA256

79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393
SHA512

c61b278894d9064e416a1d4ad36baa641226cb1352b183c99d8631f20c6046370eab388b49dda8778dcf9e629e10e71da23d544362387d695306524a00795f80
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 Second Stage 4 IoCs

resource	yara_rule
behavioral2/memory/2420-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2420-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2420-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/2420-63-0x0000000000400000-0x0000000000414000-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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe

Executes dropped EXE 3 IoCs

pid	Process
3584	csrsll.exe
4560	csrsll.exe
2420	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-1-5-21-2718105630-359604950-2820636825-1000\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 3032 set thread context of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3584 set thread context of 4560	3584	csrsll.exe	95
PID 3584 set thread context of 2420	3584	csrsll.exe	96

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3032-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3032-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4964-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4964-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3032-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4964-11-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002341c-29.dat	upx
behavioral2/memory/3584-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4964-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3584-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2420-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3584-58-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2420-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2420-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4964-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2420-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2420-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3584-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4560-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2420-63-0x0000000000400000-0x0000000000414000-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	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe
Token: SeDebugPrivilege	4560	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
3584	csrsll.exe
4560	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 3032 wrote to memory of 4964	3032	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	82
PID 4964 wrote to memory of 3796	4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	85
PID 4964 wrote to memory of 3796	4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	85
PID 4964 wrote to memory of 3796	4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	85
PID 3796 wrote to memory of 3232	3796	cmd.exe	89
PID 3796 wrote to memory of 3232	3796	cmd.exe	89
PID 3796 wrote to memory of 3232	3796	cmd.exe	89
PID 4964 wrote to memory of 3584	4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	90
PID 4964 wrote to memory of 3584	4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	90
PID 4964 wrote to memory of 3584	4964	79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe	90
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 4560	3584	csrsll.exe	95
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96
PID 3584 wrote to memory of 2420	3584	csrsll.exe	96

C:\Users\Admin\AppData\Local\Temp\79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
"C:\Users\Admin\AppData\Local\Temp\79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe
  "C:\Users\Admin\AppData\Local\Temp\79ca75cb4c62a0fdddc1418401960c71cc284f79a682971b80db3d672e34e393N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4964
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\UQEQC.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3796
  - - 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:3232
- - 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:3584
  - - 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:4560
  - - 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:2420

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\UQEQC.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
dbd1a83c634ba54aebc172a3c346e3fa

SHA1
f0fc7134bf1f8cb4b306736085621b08212298db

SHA256
900259cee9595b67433f89fee9def2d99580eb827700caa0c57fcc83e361893c

SHA512
6273a8ace8fe5dab2d38be5e773f2c518b287bb724f7c6159bd6f18ab32d3f644c36bc19dd8ce213b24fea700b08581d33919dae213780417a03fc8841997ce9

Download Submit
memory/2420-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-63-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2420-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3032-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3032-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3032-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3032-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/3032-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

Filesize
8KB

Download
memory/3032-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/3584-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3584-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3584-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3584-58-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4560-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-60-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/4964-11-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4964-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads