modiloader | d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424e

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 23:25

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General

Target

d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
Size

90KB
MD5

bff237634fb187cdc1595c0aa8cf51a0
SHA1

75db73fee6fa1cf28f88c16bbd6700c7d373351f
SHA256

d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424e
SHA512

05c0f2eb012e6a8fee1a1d3acf71b722123a112757f6ad73eeb2ca2ebc6599625c9a352e02c4ec20a4c087081200e9d4d61af6265661061770315465c49b7068
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD3:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3B

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 1 IoCs

resource	yara_rule
behavioral1/memory/2472-257-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2016	csrsll.exe
1080	csrsll.exe
2472	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.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-1-5-21-1488793075-819845221-1497111674-1000\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 2180 set thread context of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2016 set thread context of 1080	2016	csrsll.exe	35
PID 2016 set thread context of 2472	2016	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2180-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2180-89-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/632-99-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/632-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/632-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/632-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/632-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/632-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2180-101-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x0008000000012118-146.dat	upx
behavioral1/memory/632-145-0x0000000002700000-0x0000000002753000-memory.dmp	upx
behavioral1/memory/632-149-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2016-209-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2472-243-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2016-242-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2016-249-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1080-236-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/632-253-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1080-254-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2472-257-0x0000000000400000-0x0000000000414000-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	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.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	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe
Token: SeDebugPrivilege	1080	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
2016	csrsll.exe
1080	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 2180 wrote to memory of 632	2180	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	30
PID 632 wrote to memory of 1720	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	31
PID 632 wrote to memory of 1720	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	31
PID 632 wrote to memory of 1720	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	31
PID 632 wrote to memory of 1720	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	31
PID 1720 wrote to memory of 2220	1720	cmd.exe	33
PID 1720 wrote to memory of 2220	1720	cmd.exe	33
PID 1720 wrote to memory of 2220	1720	cmd.exe	33
PID 1720 wrote to memory of 2220	1720	cmd.exe	33
PID 632 wrote to memory of 2016	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	34
PID 632 wrote to memory of 2016	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	34
PID 632 wrote to memory of 2016	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	34
PID 632 wrote to memory of 2016	632	d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe	34
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 1080	2016	csrsll.exe	35
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36
PID 2016 wrote to memory of 2472	2016	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
"C:\Users\Admin\AppData\Local\Temp\d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe
  "C:\Users\Admin\AppData\Local\Temp\d273bdebb000cb9c85cd392e026b67fac7ed1b2f43cc9ae8a2255fef281c424eN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:632
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BXVAN.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1720
  - - 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:2220
- - 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:2016
  - - 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:1080
  - - 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:2472

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

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Downloads

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

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
710bcbacbc87c53acde57a438deeec70

SHA1
00960fe81222deb1d6aca2e112d6e3f99405464b

SHA256
cf186adb52927c9e97f3dff0908731f2eef2a4c2f72c25c9f063d8535c6213f6

SHA512
cde9053434a4c7d26a5503777ea4a67418c502a69620092797bf5ff0caaba5942d450031d7b8ea2c6f5dbcd817152e2dbcd95f414ac831bd75fa3aa870a15b21

Download Submit
memory/632-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-149-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-145-0x0000000002700000-0x0000000002753000-memory.dmp

Filesize
332KB

Download
memory/632-253-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-99-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/632-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/632-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1080-236-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1080-254-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2016-209-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2016-242-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2016-249-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2016-162-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2016-173-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2016-152-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2180-79-0x00000000004F0000-0x00000000004F2000-memory.dmp

Filesize
8KB

Download
memory/2180-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2180-41-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/2180-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2180-101-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2180-61-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/2180-29-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2180-89-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2180-16-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2180-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2180-90-0x00000000027D0000-0x0000000002823000-memory.dmp

Filesize
332KB

Download
memory/2180-71-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/2180-14-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2180-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2472-243-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2472-257-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads