modiloader | 2e89a98cdfef59ab80a9a83e9940e7b064769cee70f62f94674cce771a8ed2ed

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 11:36

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General

Target

bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
Size

90KB
MD5

bdbe28c1801f2dab5a0f74b2a32d82a0
SHA1

985b6a713ad607136e13171d45b10c1ccc6c5a89
SHA256

2e89a98cdfef59ab80a9a83e9940e7b064769cee70f62f94674cce771a8ed2ed
SHA512

79ff9a316903cfb88c9ec3c9b900b7081d5e4035b3b5bfd6bd953451ba5e4d6392a700bdacc912def0a99f4f0ce3bb607a33ffbfa06a1b0b84fb39a18eff57dd
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDg: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/1636-266-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2692	csrsll.exe
2188	csrsll.exe
1636	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2848-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2848-93-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2848-84-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1052-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1052-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1052-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2848-104-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1052-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1052-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2848-83-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2848-80-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2848-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2848-60-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1052-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0029000000015d93-134.dat	upx
behavioral1/memory/1052-136-0x00000000036B0000-0x0000000003703000-memory.dmp	upx
behavioral1/memory/1052-155-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2692-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1636-254-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2188-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2692-257-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1052-262-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2188-263-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1636-266-0x0000000000400000-0x0000000000414000-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-1-5-21-3450744190-3404161390-554719085-1000\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 2848 set thread context of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2692 set thread context of 2188	2692	csrsll.exe	35
PID 2692 set thread context of 1636	2692	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	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	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe
Token: SeDebugPrivilege	2188	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
2692	csrsll.exe
2188	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 2848 wrote to memory of 1052	2848	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	30
PID 1052 wrote to memory of 856	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	31
PID 1052 wrote to memory of 856	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	31
PID 1052 wrote to memory of 856	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	31
PID 1052 wrote to memory of 856	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	31
PID 856 wrote to memory of 1880	856	cmd.exe	33
PID 856 wrote to memory of 1880	856	cmd.exe	33
PID 856 wrote to memory of 1880	856	cmd.exe	33
PID 856 wrote to memory of 1880	856	cmd.exe	33
PID 1052 wrote to memory of 2692	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	34
PID 1052 wrote to memory of 2692	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	34
PID 1052 wrote to memory of 2692	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	34
PID 1052 wrote to memory of 2692	1052	bdbe28c1801f2dab5a0f74b2a32d82a0N.exe	34
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 2188	2692	csrsll.exe	35
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36
PID 2692 wrote to memory of 1636	2692	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
"C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\bdbe28c1801f2dab5a0f74b2a32d82a0N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1052
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\DHXYV.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:856
  - - 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:1880
- - 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:2692
  - - 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:2188
  - - 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:1636

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\DHXYV.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
51c81796170b7484082e3b7cdff9c6dd

SHA1
fda11cc7ef95231f82f58634f7edb9ffb297386f

SHA256
d112c510105604c79911d9b1e6af01160515dc7baee5c0f8b88498b31b724a78

SHA512
f6a1988151949c72c8a316f7ee3f0d51c8e59a4524302864ca6644cc10854f96e27a366b4a1d3bb6ef4ad113a8af843fbc1c3f9665dfcfe4c0c30dea78bc02c8

Download Submit
memory/1052-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-136-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-151-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-247-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-251-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1052-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-155-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-253-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-262-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-150-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1052-215-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1052-149-0x00000000036B0000-0x0000000003703000-memory.dmp

Filesize
332KB

Download
memory/1636-266-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1636-254-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2188-263-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2188-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2692-158-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2692-179-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2692-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2692-168-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2692-257-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-104-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-28-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2848-40-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2848-60-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-61-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2848-71-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2848-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-80-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-81-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2848-83-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-84-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-93-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2848-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2848-22-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2848-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2848-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads