modiloader | 9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 11:02

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General

Target

9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
Size

90KB
MD5

0d598f0ada1c5c61d3da4ebe69483520
SHA1

a8e00285f1bb464e5bad0f1289f708d366864c40
SHA256

9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28
SHA512

44723e8ca7fd9f09c241aeb2215efad5fb4a0ef2759adca06375cba89161479c8ee8806d5957d95d8f45b9c8cb6094db4ef9e66ada06980a6eae8ec7ae0c13d4
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 1 IoCs

resource	yara_rule
behavioral1/memory/1320-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2596	csrsll.exe
2072	csrsll.exe
1320	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1744-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1744-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1744-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2664-92-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2664-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1744-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2664-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000016a47-130.dat	upx
behavioral1/memory/2664-144-0x00000000034B0000-0x0000000003503000-memory.dmp	upx
behavioral1/memory/2596-150-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2664-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2596-214-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1320-247-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2596-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2664-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2072-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1320-261-0x0000000000400000-0x0000000000414000-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-1-5-21-3290804112-2823094203-3137964600-1000\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 1744 set thread context of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 2596 set thread context of 2072	2596	csrsll.exe	35
PID 2596 set thread context of 1320	2596	csrsll.exe	36

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	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe
Token: SeDebugPrivilege	2072	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
2596	csrsll.exe
2072	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 1744 wrote to memory of 2664	1744	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	30
PID 2664 wrote to memory of 3040	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	31
PID 2664 wrote to memory of 3040	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	31
PID 2664 wrote to memory of 3040	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	31
PID 2664 wrote to memory of 3040	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	31
PID 3040 wrote to memory of 1816	3040	cmd.exe	33
PID 3040 wrote to memory of 1816	3040	cmd.exe	33
PID 3040 wrote to memory of 1816	3040	cmd.exe	33
PID 3040 wrote to memory of 1816	3040	cmd.exe	33
PID 2664 wrote to memory of 2596	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	34
PID 2664 wrote to memory of 2596	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	34
PID 2664 wrote to memory of 2596	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	34
PID 2664 wrote to memory of 2596	2664	9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe	34
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 2072	2596	csrsll.exe	35
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36
PID 2596 wrote to memory of 1320	2596	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
"C:\Users\Admin\AppData\Local\Temp\9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe
  "C:\Users\Admin\AppData\Local\Temp\9ab03a0ccc538f631b3a2a48635996be8f5e58bc1b0762516876c424951d2c28N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\WTCDO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3040
  - - 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:1816
- - 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:2596
  - - 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:2072
  - - 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:1320

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\WTCDO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
120c61908a239c86bae0d1f01ae85e77

SHA1
d9cc2fc7aeb1e824ae27cfff3191d16b84bf84b8

SHA256
003579dacc5ee9a6a7d7e8966e5c8cfdd4c0acbe21d3139cfc15e5973591514b

SHA512
400b6cc040ac68b183629cb6b3f7d915803291bad917a6c1d508316ff81866c01cf7ab7ddf902436366d984d03f131a654bd2c92bf97afdb6bf2dc9ffec47549

Download Submit
memory/1320-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1320-247-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1744-18-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1744-29-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/1744-41-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/1744-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1744-79-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/1744-71-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/1744-61-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1744-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1744-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1744-5-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1744-15-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1744-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1744-3-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2072-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2596-156-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2596-166-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2596-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2596-214-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2596-177-0x0000000001C00000-0x0000000001C01000-memory.dmp

Filesize
4KB

Download
memory/2596-150-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2664-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-145-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-144-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-146-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-213-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-147-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-148-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-241-0x00000000034B0000-0x0000000003503000-memory.dmp

Filesize
332KB

Download
memory/2664-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2664-90-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads