modiloader | 6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743

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
03-12-2024 08:22

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General

Target

6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
Size

90KB
MD5

9c3967fb0a92cc7c259bfb6ad68ace90
SHA1

87f8ebf9d8958716c86c6ed0790f7ecf93c9de43
SHA256

6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743
SHA512

df0f005fe73547ba8e082a73f2cf02a812b301b960299eda288534d49e9f6844b5865bb85a71878c7bd9b34e332b7f0195e32720be1f7c887339892ee73301df
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oD8:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3u

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/1932-263-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1536	csrsll.exe
1720	csrsll.exe
1932	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.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-1-5-21-1846800975-3917212583-2893086201-1000\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 2032 set thread context of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 1536 set thread context of 1720	1536	csrsll.exe	35
PID 1536 set thread context of 1932	1536	csrsll.exe	36

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2032-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2032-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2648-98-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-95-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2648-93-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-91-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-103-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2648-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2032-101-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2032-99-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/files/0x000d00000001226b-132.dat	upx
behavioral1/memory/2648-153-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1536-225-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1932-251-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1536-255-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2648-259-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1720-260-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1932-263-0x0000000000400000-0x0000000000414000-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	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe
Token: SeDebugPrivilege	1720	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
1536	csrsll.exe
1720	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2032 wrote to memory of 2648	2032	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	30
PID 2648 wrote to memory of 836	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	31
PID 2648 wrote to memory of 836	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	31
PID 2648 wrote to memory of 836	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	31
PID 2648 wrote to memory of 836	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	31
PID 836 wrote to memory of 2940	836	cmd.exe	33
PID 836 wrote to memory of 2940	836	cmd.exe	33
PID 836 wrote to memory of 2940	836	cmd.exe	33
PID 836 wrote to memory of 2940	836	cmd.exe	33
PID 2648 wrote to memory of 1536	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	34
PID 2648 wrote to memory of 1536	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	34
PID 2648 wrote to memory of 1536	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	34
PID 2648 wrote to memory of 1536	2648	6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe	34
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1720	1536	csrsll.exe	35
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36
PID 1536 wrote to memory of 1932	1536	csrsll.exe	36

C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
"C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe
  "C:\Users\Admin\AppData\Local\Temp\6f990a07fd8401243108771ec9dd56d9de60d36f05327ce52ca6883a80300743N.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OBNVM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:836
  - - 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:2940
- - 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:1536
  - - 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:1720
  - - 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:1932

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\OBNVM.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
6355b52012cc86a1e691fea1e6988383

SHA1
cfb14805b73f4492680ba6ecb6ee6937d02cd80a

SHA256
965222e82513d191f8bf067989a59b0f86ca23356409885edf438394c9689618

SHA512
baf63f2cbcafb4fa065ec8cc1556c71501aa333a66cb0aaeed10114460e377a07ba55fdce328b663bb4ad65dd57d4ac24f292ba8360608099b69d2a7e18f014b

Download Submit
memory/1536-255-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1536-166-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1536-177-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1536-225-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1536-156-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1720-260-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1932-263-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1932-251-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2032-61-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2032-79-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2032-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2032-95-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-15-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2032-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2032-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2032-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2032-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2032-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-101-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-99-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-105-0x0000000002760000-0x00000000027B3000-memory.dmp

Filesize
332KB

Download
memory/2032-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2032-71-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2648-147-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-214-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-98-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-146-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-153-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-149-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-220-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-148-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-213-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-103-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-223-0x0000000003150000-0x00000000031A3000-memory.dmp

Filesize
332KB

Download
memory/2648-89-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-91-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-259-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-93-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2648-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads