modiloader | 60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383e

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:34

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General

Target

60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
Size

90KB
MD5

6f843cdfcb0736b85728122b95f00360
SHA1

ec74f48aa576701d292af99252cd62e08f028f22
SHA256

60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383e
SHA512

d384cac84fc0aa6dfd8197322d50b8a5ab4773bb5125e724f9f9910f84d23c9ec23a2abb6bae4f6450dbe0d021780d57c458e75925f1287bcfd33ee837e1526d
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 family
modiloader

ModiLoader Second Stage 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4372-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4372-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4372-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4372-64-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe

Executes dropped EXE 3 IoCs

Processes:

csrsll.execsrsll.execsrsll.exe

pid	Process
2972	csrsll.exe
1408	csrsll.exe
4372	csrsll.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.execsrsll.exe

description	pid	Process	procid_target
PID 4100 set thread context of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 2972 set thread context of 1408	2972	csrsll.exe	101
PID 2972 set thread context of 4372	2972	csrsll.exe	102

UPX packed file 20 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4100-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4100-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2652-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2652-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4100-11-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/files/0x0011000000023b59-29.dat	upx
behavioral2/memory/2972-37-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-40-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2972-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2972-42-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4372-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4372-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4372-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4372-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4372-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/2972-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/2652-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1408-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4372-64-0x0000000000400000-0x0000000000414000-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

Processes:

reg.execsrsll.execsrsll.execsrsll.exe60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.execmd.exe

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	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

csrsll.exe

description	pid	Process
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe
Token: SeDebugPrivilege	1408	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.execsrsll.execsrsll.exe

pid	Process
4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
2972	csrsll.exe
1408	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.execmd.execsrsll.exe

description	pid	Process	procid_target
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 4100 wrote to memory of 2652	4100	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	92
PID 2652 wrote to memory of 4448	2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	93
PID 2652 wrote to memory of 4448	2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	93
PID 2652 wrote to memory of 4448	2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	93
PID 4448 wrote to memory of 1124	4448	cmd.exe	96
PID 4448 wrote to memory of 1124	4448	cmd.exe	96
PID 4448 wrote to memory of 1124	4448	cmd.exe	96
PID 2652 wrote to memory of 2972	2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	97
PID 2652 wrote to memory of 2972	2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	97
PID 2652 wrote to memory of 2972	2652	60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe	97
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 1408	2972	csrsll.exe	101
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102
PID 2972 wrote to memory of 4372	2972	csrsll.exe	102

C:\Users\Admin\AppData\Local\Temp\60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
"C:\Users\Admin\AppData\Local\Temp\60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Users\Admin\AppData\Local\Temp\60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe
  "C:\Users\Admin\AppData\Local\Temp\60263052bebcfa536c8ce880a1b75b03e872a3c90b7a1c4c5207b8920f74383eN.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2652
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PSRTF.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4448
  - - 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:1124
- - 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:2972
  - - 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:1408
  - - 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:4372

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

Query Registry

T1012

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\PSRTF.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
b7b24b5532f13fbac4e7854b86902ee4

SHA1
ec6183bb5a50c7362abc8811c6848688572b802d

SHA256
8229deedcc94a70eb88f68bf819c5d0134b1f29d34d81e1fb997ef807a64f0d4

SHA512
6b01787a1d5a313cdbad68f91676afdd6d18ee257b8fbff84489c28a3ef3dc43ab0b11699d79565369e34657a312ad638ef6e2835945f92969bb606dd56992b9

Download Submit
memory/1408-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-40-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2652-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2972-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2972-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2972-42-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2972-37-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4100-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4100-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4100-5-0x0000000002310000-0x0000000002312000-memory.dmp

Filesize
8KB

Download
memory/4100-6-0x0000000002330000-0x0000000002332000-memory.dmp

Filesize
8KB

Download
memory/4100-11-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4100-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

Filesize
8KB

Download
memory/4372-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4372-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download