modiloader | 5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2024 09:37

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General

Target

5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe
Size

90KB
MD5

422af72ba1383a215e0e2dc7592e4c75
SHA1

d516ad24d23e597e465919e2c037ed24534c40d6
SHA256

5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74
SHA512

2bdbd1488d51917b8bc83cbb751b80b6da9a5d80a336f6a07d2cc835cf845ac77be87b5523b3a0aace471f460b09978f9a3b0dee3ab20117412ca2ddff1d0645
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/1952-58-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1952-56-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1952-59-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1952-64-0x0000000000400000-0x0000000000414000-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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe

Executes dropped EXE 3 IoCs

pid	Process
1608	csrsll.exe
3068	csrsll.exe
1952	csrsll.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1616-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1616-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3840-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1616-13-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-12-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000800000002347b-29.dat	upx
behavioral2/memory/1608-36-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3840-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1608-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1608-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1952-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1952-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1608-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1952-58-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1952-56-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1952-59-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/3840-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3068-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1952-64-0x0000000000400000-0x0000000000414000-memory.dmp	upx

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-1-5-21-355097885-2402257403-2971294179-1000\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 1616 set thread context of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1608 set thread context of 3068	1608	csrsll.exe	98
PID 1608 set thread context of 1952	1608	csrsll.exe	99

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	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.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	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe
Token: SeDebugPrivilege	3068	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe
3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe
1608	csrsll.exe
3068	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 1616 wrote to memory of 3840	1616	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	89
PID 3840 wrote to memory of 1916	3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	91
PID 3840 wrote to memory of 1916	3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	91
PID 3840 wrote to memory of 1916	3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	91
PID 1916 wrote to memory of 1968	1916	cmd.exe	94
PID 1916 wrote to memory of 1968	1916	cmd.exe	94
PID 1916 wrote to memory of 1968	1916	cmd.exe	94
PID 3840 wrote to memory of 1608	3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	95
PID 3840 wrote to memory of 1608	3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	95
PID 3840 wrote to memory of 1608	3840	5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe	95
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 3068	1608	csrsll.exe	98
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99
PID 1608 wrote to memory of 1952	1608	csrsll.exe	99

C:\Users\Admin\AppData\Local\Temp\5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe
"C:\Users\Admin\AppData\Local\Temp\5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe
  "C:\Users\Admin\AppData\Local\Temp\5924fa3d651f0178bcd41a2f55b45ad9a2835ebf470bf5d415d94a788f4f3a74.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3840
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\JXXLM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1916
  - - 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:1968
- - 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:1608
  - - 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:3068
  - - 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:1952

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\JXXLM.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
38d62c61e13c1afd526ee4bd0ec44aa7

SHA1
8dfffb3b7883a1a594959a181e91663f267a0295

SHA256
c88aba1c464e4516fb149300b4cbd79fc03527a17b3e66b9878697d2352ba947

SHA512
f62c99aafd38b9608d9074d51a91863bef8dd4ec870ea268696f23987ca434b887aa4750f0db0487485daddf4cd387c8f7ee6a630cfebeb11c3a8ff7c460b038

Download Submit
memory/1608-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1608-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1608-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1608-36-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1616-3-0x00000000021A0000-0x00000000021A2000-memory.dmp

Filesize
8KB

Download
memory/1616-4-0x00000000021B0000-0x00000000021B2000-memory.dmp

Filesize
8KB

Download
memory/1616-6-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/1616-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1616-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1616-13-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1952-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1952-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1952-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1952-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1952-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1952-58-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3840-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads