modiloader | 8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21

Analysis

max time kernel
118s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 14:43

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General

Target

8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
Size

90KB
MD5

556455449ac5c713aea6b6b058d0afe0
SHA1

b7d4e0a396735af996c6a01e553722f0b3758d9d
SHA256

8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21
SHA512

64c2f0bd124ec3ddc376e5d4862130f2971a5c78a8f096bdaf27bf279948231e7e9b2e31c64f0ef950334a88836fbbb0d605a1fe688e127c8ff3bbfa93e56a06
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDD:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3x

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/1016-261-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1288	csrsll.exe
1368	csrsll.exe
1016	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.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-1-5-21-2872745919-2748461613-2989606286-1000\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 2356 set thread context of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 1288 set thread context of 1368	1288	csrsll.exe	35
PID 1288 set thread context of 1016	1288	csrsll.exe	36

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2356-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2356-84-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2452-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2356-102-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2452-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2452-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2452-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2452-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2452-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2356-79-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2356-72-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2452-109-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x0004000000012000-144.dat	upx
behavioral1/memory/2452-152-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1288-211-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1016-249-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2452-252-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1288-248-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1368-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1016-261-0x0000000000400000-0x0000000000414000-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	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	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe
Token: SeDebugPrivilege	1368	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
1288	csrsll.exe
1368	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2356 wrote to memory of 2452	2356	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	30
PID 2452 wrote to memory of 2300	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	31
PID 2452 wrote to memory of 2300	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	31
PID 2452 wrote to memory of 2300	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	31
PID 2452 wrote to memory of 2300	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	31
PID 2300 wrote to memory of 2800	2300	cmd.exe	33
PID 2300 wrote to memory of 2800	2300	cmd.exe	33
PID 2300 wrote to memory of 2800	2300	cmd.exe	33
PID 2300 wrote to memory of 2800	2300	cmd.exe	33
PID 2452 wrote to memory of 1288	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	34
PID 2452 wrote to memory of 1288	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	34
PID 2452 wrote to memory of 1288	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	34
PID 2452 wrote to memory of 1288	2452	8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe	34
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1368	1288	csrsll.exe	35
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36
PID 1288 wrote to memory of 1016	1288	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
"C:\Users\Admin\AppData\Local\Temp\8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe
  "C:\Users\Admin\AppData\Local\Temp\8da0beb3da944696e8688a650a5d9167426e925b01969da2f890d7da0de7dd21N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2452
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\IRIRO.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2300
  - - 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:2800
- - 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:1288
  - - 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:1368
  - - 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:1016

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\IRIRO.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
c28f296468d2545bf29b30ace579ba59

SHA1
0d80171773845befa9e0b453786f64fa28d799e0

SHA256
b0abefed3a108df5b724502ebdee697b9652edbf2d6c31054a64b35af2ebc079

SHA512
9b9baa2f7dc7d39448d5e6df04ad0bc56c2821ec91eb9f86ade664463a4a6dc85ca6416c4ba2db9e1324f68a9d09513e4f73fe668a1f52933edd1c7d5001472b

Download Submit
memory/1016-261-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1016-249-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1288-248-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-165-0x0000000000460000-0x0000000000461000-memory.dmp

Filesize
4KB

Download
memory/1288-176-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/1288-211-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1288-155-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1368-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2356-60-0x0000000001D00000-0x0000000001D01000-memory.dmp

Filesize
4KB

Download
memory/2356-151-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-3-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2356-15-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2356-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2356-5-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2356-80-0x0000000002560000-0x0000000002562000-memory.dmp

Filesize
8KB

Download
memory/2356-79-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-72-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-70-0x0000000001D20000-0x0000000001D21000-memory.dmp

Filesize
4KB

Download
memory/2356-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-40-0x0000000001C80000-0x0000000001C81000-memory.dmp

Filesize
4KB

Download
memory/2356-28-0x0000000001C60000-0x0000000001C61000-memory.dmp

Filesize
4KB

Download
memory/2356-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-84-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2356-102-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2452-147-0x0000000003170000-0x00000000031C3000-memory.dmp

Filesize
332KB

Download
memory/2452-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-146-0x0000000003170000-0x00000000031C3000-memory.dmp

Filesize
332KB

Download
memory/2452-152-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-210-0x0000000003170000-0x00000000031C3000-memory.dmp

Filesize
332KB

Download
memory/2452-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-109-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-252-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-241-0x0000000003170000-0x00000000031C3000-memory.dmp

Filesize
332KB

Download
memory/2452-240-0x0000000003170000-0x00000000031C3000-memory.dmp

Filesize
332KB

Download
memory/2452-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2452-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads