modiloader | ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f

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
03-12-2024 04:12

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General

Target

ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe
Size

90KB
MD5

88051ecf5bf98cfccef9c7ec89b2ef8a
SHA1

53ebee142d04c99b07d305ec253d503b1a5903fd
SHA256

ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f
SHA512

5d0b2eb2f016d5ad3213c556c14bd5376cef9bca3714e4241e0139056882d8ec2f7b70bf5bf355afbf35333f53bc3be56b7cc16b8cb6db14167ea5621cbe473f
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDh:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3j

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

resource	yara_rule
behavioral2/memory/4996-51-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4996-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4996-53-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/4996-62-0x0000000000400000-0x0000000000414000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe

Executes dropped EXE 3 IoCs

pid	Process
4432	csrsll.exe
784	csrsll.exe
4996	csrsll.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-1-5-21-3350944739-639801879-157714471-1000\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 4724 set thread context of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4432 set thread context of 784	4432	csrsll.exe	102
PID 4432 set thread context of 4996	4432	csrsll.exe	103

UPX packed file 18 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4724-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4724-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/620-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/620-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4724-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/620-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b79-29.dat	upx
behavioral2/memory/620-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4432-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4996-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4996-51-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4996-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4996-53-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4996-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4432-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/620-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/784-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4996-62-0x0000000000400000-0x0000000000414000-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	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe
Token: SeDebugPrivilege	784	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe
620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe
4432	csrsll.exe
784	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 4724 wrote to memory of 620	4724	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	90
PID 620 wrote to memory of 2848	620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	93
PID 620 wrote to memory of 2848	620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	93
PID 620 wrote to memory of 2848	620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	93
PID 2848 wrote to memory of 4248	2848	cmd.exe	97
PID 2848 wrote to memory of 4248	2848	cmd.exe	97
PID 2848 wrote to memory of 4248	2848	cmd.exe	97
PID 620 wrote to memory of 4432	620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	98
PID 620 wrote to memory of 4432	620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	98
PID 620 wrote to memory of 4432	620	ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe	98
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 784	4432	csrsll.exe	102
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103
PID 4432 wrote to memory of 4996	4432	csrsll.exe	103

C:\Users\Admin\AppData\Local\Temp\ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe
"C:\Users\Admin\AppData\Local\Temp\ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4724
- C:\Users\Admin\AppData\Local\Temp\ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe
  "C:\Users\Admin\AppData\Local\Temp\ec96fa8a93ac084cb100c53f15a37fcb72c3b24b30428575d319de722cc4b22f.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:620
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OYPKJ.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - 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:4248
- - 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:4432
  - - 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:784
  - - 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:4996

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\OYPKJ.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
94909efa86462842f2f43627992661f4

SHA1
fd0e0fdac0610072c79a92ae7c056bb614503e28

SHA256
dd6d2b7a6d5a1a1edd75aea0b9900fbdf71aa0d1d1fae48fe58ea338eda41990

SHA512
febdaa2cf30b2c1ea0c4fdbd97d35c527717787887437c915848bc55dbd06287fcd8bad78c3e2aa44fe97a98eef96f8ad9c321d3d2fb32f0991271a5dd327415

Download Submit
memory/620-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/620-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/620-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/620-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/620-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/784-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4432-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4432-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4724-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4724-3-0x0000000002A40000-0x0000000002A42000-memory.dmp

Filesize
8KB

Download
memory/4724-4-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4724-6-0x0000000002A60000-0x0000000002A62000-memory.dmp

Filesize
8KB

Download
memory/4724-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4724-5-0x0000000002A70000-0x0000000002A72000-memory.dmp

Filesize
8KB

Download
memory/4996-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4996-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads