modiloader | cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731

Analysis

max time kernel
118s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 21:31

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General

Target

cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
Size

90KB
MD5

47747ba7d76ed203bcaa5ac7c9918100
SHA1

24db78a0a67464608927fc202c890c4e028c37c2
SHA256

cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731
SHA512

15e98a31cacd668ec0acb44bab247245e688b577e3eadf2ee34037720763763640e187ac2ef5c8200171814d949718e398a32f89eb7829d3b069227d818119c7
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDO:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3s

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/1884-52-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1884-55-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1884-54-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral2/memory/1884-62-0x0000000000400000-0x0000000000414000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe

Executes dropped EXE 3 IoCs

pid	Process
4708	csrsll.exe
2888	csrsll.exe
1884	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-1-5-21-3756129449-3121373848-4276368241-1000\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 3764 set thread context of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 4708 set thread context of 2888	4708	csrsll.exe	93
PID 4708 set thread context of 1884	4708	csrsll.exe	94

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3764-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/3764-5-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/828-9-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3764-12-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/828-13-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/828-7-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000b000000023b6b-29.dat	upx
behavioral2/memory/828-39-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/4708-40-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4708-41-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1884-50-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1884-46-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1884-52-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1884-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/1884-54-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral2/memory/4708-57-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/828-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2888-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/1884-62-0x0000000000400000-0x0000000000414000-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	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	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe
Token: SeDebugPrivilege	2888	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
4708	csrsll.exe
2888	csrsll.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 3764 wrote to memory of 828	3764	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	82
PID 828 wrote to memory of 3488	828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	83
PID 828 wrote to memory of 3488	828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	83
PID 828 wrote to memory of 3488	828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	83
PID 3488 wrote to memory of 4528	3488	cmd.exe	86
PID 3488 wrote to memory of 4528	3488	cmd.exe	86
PID 3488 wrote to memory of 4528	3488	cmd.exe	86
PID 828 wrote to memory of 4708	828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	87
PID 828 wrote to memory of 4708	828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	87
PID 828 wrote to memory of 4708	828	cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe	87
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 2888	4708	csrsll.exe	93
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94
PID 4708 wrote to memory of 1884	4708	csrsll.exe	94

C:\Users\Admin\AppData\Local\Temp\cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
"C:\Users\Admin\AppData\Local\Temp\cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Users\Admin\AppData\Local\Temp\cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe
  "C:\Users\Admin\AppData\Local\Temp\cdba52f310931961a79b25048ea2d82e5262989dada1d908bce3077a77ec5731N.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PTFGD.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3488
  - - 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:4528
- - 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:4708
  - - 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:2888
  - - 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:1884

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\PTFGD.txt

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

Filesize
90KB

MD5
584435654fc28ef69c0cbc915348f624

SHA1
397b10c294fcf8c1d522f03dae343a2428763c00

SHA256
edf747ed5d476cedf257afba1d618de311825454e33a2c1542affa02a922263b

SHA512
71ffaf136c0c8d5ee75aae908673bbcc10d115571011576ec7339322979dfac84931ef93b15660afd895d929630b7f03352626f7cbdb74153d3ac5218696b2a0

Download Submit
memory/828-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/828-58-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/828-9-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/828-13-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/828-7-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/828-39-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1884-46-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1884-54-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1884-62-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1884-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1884-52-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1884-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2888-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3764-12-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3764-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3764-6-0x00000000021F0000-0x00000000021F2000-memory.dmp

Filesize
8KB

Download
memory/3764-5-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/3764-4-0x00000000021D0000-0x00000000021D2000-memory.dmp

Filesize
8KB

Download
memory/3764-3-0x00000000021C0000-0x00000000021C2000-memory.dmp

Filesize
8KB

Download
memory/4708-41-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4708-40-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/4708-57-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads