modiloader | 993b4c7064ee3cb97eb082224de5e8f172279d5af33f88fac3946eb5da4b5c94

Analysis

max time kernel
119s
max time network
27s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 08:48

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General

Target

e5e2ea281968da06ad34851910eaee00N.exe
Size

90KB
MD5

e5e2ea281968da06ad34851910eaee00
SHA1

b9f3a9cb2768dd62be8a0c9202994d7282ef856f
SHA256

993b4c7064ee3cb97eb082224de5e8f172279d5af33f88fac3946eb5da4b5c94
SHA512

bc93502188e2f18fa335355db3549b8076c7afd9f81e3dc4eed33be0af433e75a214a32976d342d42a39fe0ff28193ede23af2d5c93f2b827f3a10cbe3d65c84
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/1316-267-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
2396	csrsll.exe
1136	csrsll.exe
1316	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
1900	e5e2ea281968da06ad34851910eaee00N.exe
1900	e5e2ea281968da06ad34851910eaee00N.exe
1900	e5e2ea281968da06ad34851910eaee00N.exe
1900	e5e2ea281968da06ad34851910eaee00N.exe
1900	e5e2ea281968da06ad34851910eaee00N.exe

UPX packed file 24 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2724-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2724-25-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2724-27-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2724-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2724-82-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1900-101-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2724-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1900-97-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-95-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1900-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2724-112-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000b000000012262-148.dat	upx
behavioral1/memory/1900-137-0x0000000002A70000-0x0000000002AC3000-memory.dmp	upx
behavioral1/memory/1900-157-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2396-220-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2396-217-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1316-253-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2396-260-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1900-263-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1136-264-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1316-267-0x0000000000400000-0x0000000000414000-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-1-5-21-457978338-2990298471-2379561640-1000\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 2724 set thread context of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2396 set thread context of 1136	2396	csrsll.exe	35
PID 2396 set thread context of 1316	2396	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	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	e5e2ea281968da06ad34851910eaee00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5e2ea281968da06ad34851910eaee00N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe
Token: SeDebugPrivilege	1136	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2724	e5e2ea281968da06ad34851910eaee00N.exe
1900	e5e2ea281968da06ad34851910eaee00N.exe
2396	csrsll.exe
1136	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 2724 wrote to memory of 1900	2724	e5e2ea281968da06ad34851910eaee00N.exe	30
PID 1900 wrote to memory of 2212	1900	e5e2ea281968da06ad34851910eaee00N.exe	31
PID 1900 wrote to memory of 2212	1900	e5e2ea281968da06ad34851910eaee00N.exe	31
PID 1900 wrote to memory of 2212	1900	e5e2ea281968da06ad34851910eaee00N.exe	31
PID 1900 wrote to memory of 2212	1900	e5e2ea281968da06ad34851910eaee00N.exe	31
PID 2212 wrote to memory of 2788	2212	cmd.exe	33
PID 2212 wrote to memory of 2788	2212	cmd.exe	33
PID 2212 wrote to memory of 2788	2212	cmd.exe	33
PID 2212 wrote to memory of 2788	2212	cmd.exe	33
PID 1900 wrote to memory of 2396	1900	e5e2ea281968da06ad34851910eaee00N.exe	34
PID 1900 wrote to memory of 2396	1900	e5e2ea281968da06ad34851910eaee00N.exe	34
PID 1900 wrote to memory of 2396	1900	e5e2ea281968da06ad34851910eaee00N.exe	34
PID 1900 wrote to memory of 2396	1900	e5e2ea281968da06ad34851910eaee00N.exe	34
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1136	2396	csrsll.exe	35
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36
PID 2396 wrote to memory of 1316	2396	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe
"C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe
  "C:\Users\Admin\AppData\Local\Temp\e5e2ea281968da06ad34851910eaee00N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OYSQT.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2212
  - - 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:2788
- - 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:2396
  - - 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:1136
  - - 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:1316

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\OYSQT.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
057305af4b1ccb0c655072af125eecae

SHA1
da9ce306885d6b1679b0e7b4ecac3f20b1a1ba1f

SHA256
ecdbf3306d9085c3979c0dfbff200a8a4cb3f39a57cc89b8d862f7bcf66e36f9

SHA512
72e3a8651daecd44de741b7d8f5e9c4dd29599117afa7e4a5b819a21048db632e7d6da06a0dc7170d9d374b61b0fb563fc3f2e3762296754f5e9629c11965dff

Download Submit
memory/1136-264-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1316-267-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1316-253-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1900-157-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-263-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-159-0x0000000002A70000-0x0000000002AC3000-memory.dmp

Filesize
332KB

Download
memory/1900-150-0x0000000002A70000-0x0000000002AC3000-memory.dmp

Filesize
332KB

Download
memory/1900-151-0x0000000002A70000-0x0000000002AC3000-memory.dmp

Filesize
332KB

Download
memory/1900-152-0x0000000002A70000-0x0000000002AC3000-memory.dmp

Filesize
332KB

Download
memory/1900-153-0x0000000002A70000-0x0000000002AC3000-memory.dmp

Filesize
332KB

Download
memory/1900-137-0x0000000002A70000-0x0000000002AC3000-memory.dmp

Filesize
332KB

Download
memory/1900-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-101-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1900-97-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-95-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1900-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2396-162-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2396-260-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2396-172-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2396-183-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2396-217-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2396-220-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-26-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2724-42-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2724-82-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-62-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2724-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2724-72-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2724-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-80-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2724-112-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-30-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2724-27-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2724-92-0x0000000000520000-0x0000000000573000-memory.dmp

Filesize
332KB

Download
memory/2724-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2724-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2724-25-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads